Compute revisions history
Arguments
- ts
The time series used for the estimation.
- spec
The specification used.
- data_ids
A
listoflistto specify the statistics to export. Each sub-list must contain two elements:start(first date to compute the history, in the format"YYYY-MM-DD") andid(the name of the statistics, seex13_dictionary()). See example.- ts_ids
A
listoflistto specify the specific date of a component whose history is to be studied. Each sub-list must contain three elements:start(first date to compute the history, in the format"YYYY-MM-DD"),period(the date of the studied) andid(the name of the component, seex13_dictionary()). See example.- cmp_ids
A
listoflistto specify the component whose history is to be studied. Each sub-list must contain three elements:start(first date to compute the history, in the format"YYYY-MM-DD"),end(last date to compute the history, in the format"YYYY-MM-DD") andid(the name of the component, seex13_dictionary()). As many series as periods betweenstartandendwill be exported. See example.- context
The context of the specification.
Examples
s <- rjd3toolkit::ABS$X0.2.09.10.M
sa_mod <- x13(s)
data_ids <- list(
# Get the coefficient of the trading-day coefficient from 2005-jan
list(start = "2005-01-01", id = "regression.td(1)"),
# Get the ljung-box statistics on residuals from 2010-jan
list(start = "2010-01-01", id = "residuals.lb")
)
ts_ids <- list(
# Get the SA component estimates of 2010-jan from 2010-jan
list(period = "2010-01-01", start = "2010-01-01", id = "sa"),
# Get the irregular component estimates of 2010-jan from 2015-jan
list(period = "2010-01-01", start = "2015-01-01", id = "i")
)
cmp_ids <- list(
# Get the SA component estimates (full time series) 2010-jan to 2020-jan
list(start = "2010-01-01", end = "2020-01-01", id = "sa"),
# Get the trend component estimates (full time series) 2010-jan to 2020-jan
list(start = "2010-01-01", end = "2020-01-01", id = "t")
)
rh <- x13_revisions(s, sa_mod$result_spec, data_ids, ts_ids, cmp_ids)
rh$data
#> $`regression.td(1)`
#> Jan Feb Mar Apr May Jun
#> 2005 0.003076667 0.003088732 0.003147353 0.003280342 0.003211439 0.003212835
#> 2006 0.003185865 0.003187351 0.003182155 0.003069748 0.003003997 0.003001299
#> 2007 0.003002581 0.003001117 0.002924064 0.002914362 0.002941283 0.002927536
#> 2008 0.002905033 0.002901749 0.002999664 0.003023156 0.003013934 0.003062184
#> 2009 0.003149768 0.003142776 0.003146923 0.003163620 0.003050390 0.003043932
#> 2010 0.002931720 0.002931871 0.002845844 0.002811849 0.002861923 0.002871469
#> 2011 0.002842008 0.002840762 0.002829849 0.002810093 0.002777442 0.002770050
#> 2012 0.002711982 0.002716639 0.002687535 0.002691635 0.002746564 0.002659796
#> 2013 0.002589584 0.002585649 0.002578836 0.002569819 0.002562398 0.002568976
#> 2014 0.002501171 0.002500855 0.002525097 0.002528915 0.002533062 0.002513502
#> 2015 0.002532105 0.002528090 0.002532450 0.002538845 0.002516642 0.002485320
#> 2016 0.002401865 0.002403927 0.002386918 0.002378738 0.002369672 0.002379161
#> 2017 0.002349477 0.002349532 0.002357110 0.002301380 0.002311191 0.002313140
#> Jul Aug Sep Oct Nov Dec
#> 2005 0.003238235 0.003232353 0.003225911 0.003279751 0.003225557 0.003229380
#> 2006 0.002959533 0.002968040 0.003053542 0.003005279 0.003011578 0.002968602
#> 2007 0.002945028 0.002949257 0.002872315 0.002886780 0.002885225 0.002885775
#> 2008 0.003086158 0.003210118 0.003192097 0.003169257 0.003189459 0.003212351
#> 2009 0.003029833 0.003035469 0.003017887 0.002994520 0.002990862 0.002935097
#> 2010 0.002854671 0.002847869 0.002851376 0.002887959 0.002850339 0.002826915
#> 2011 0.002792093 0.002752454 0.002743057 0.002757627 0.002750884 0.002734199
#> 2012 0.002616650 0.002636013 0.002617572 0.002614206 0.002610559 0.002597669
#> 2013 0.002468967 0.002461901 0.002462100 0.002491110 0.002477300 0.002476648
#> 2014 0.002554801 0.002604529 0.002604043 0.002613260 0.002557950 0.002572716
#> 2015 0.002493968 0.002481774 0.002490179 0.002422467 0.002424223 0.002438279
#> 2016 0.002486074 0.002376817 0.002370393 0.002405123 0.002372190 0.002370456
#> 2017 0.002333145 0.002323335
#>
#> $residuals.lb
#> Jan Feb Mar Apr May
#> 2010 0.0060176509 0.0057090030 0.0076090226 0.0088367934 0.0064222953
#> 2011 0.0045045046 0.0042573209 0.0046736192 0.0040653476 0.0035751567
#> 2012 0.0034292734 0.0033586828 0.0031497621 0.0031213146 0.0030848796
#> 2013 0.0049419794 0.0044031111 0.0042865967 0.0038958120 0.0040620564
#> 2014 0.0026419843 0.0036747137 0.0031102981 0.0031764502 0.0032387711
#> 2015 0.0014066083 0.0012538121 0.0012251238 0.0011474319 0.0011405525
#> 2016 0.0009481306 0.0009651363 0.0009513905 0.0008949893 0.0006913588
#> 2017 0.0002186317 0.0002100895 0.0001930667 0.0002191415 0.0002143808
#> Jun Jul Aug Sep Oct
#> 2010 0.0059554759 0.0057273147 0.0056421658 0.0053669522 0.0058164777
#> 2011 0.0041606186 0.0041037643 0.0037401267 0.0038279085 0.0039610969
#> 2012 0.0039866506 0.0063740858 0.0061119743 0.0059677146 0.0057886379
#> 2013 0.0038742164 0.0029012693 0.0027101551 0.0026256373 0.0026244393
#> 2014 0.0022075058 0.0018219430 0.0020075044 0.0019391905 0.0018925684
#> 2015 0.0012111751 0.0010026843 0.0012791433 0.0010100184 0.0009888699
#> 2016 0.0005894989 0.0005978475 0.0004534664 0.0004190587 0.0003933268
#> 2017 0.0001954063 0.0001619703 0.0001540587
#> Nov Dec
#> 2010 0.0051173069 0.0047996871
#> 2011 0.0038375087 0.0033148126
#> 2012 0.0057471378 0.0052436195
#> 2013 0.0020489225 0.0019566490
#> 2014 0.0017642425 0.0017633301
#> 2015 0.0010115597 0.0008977203
#> 2016 0.0002830110 0.0002685781
#> 2017
#>
rh$series
#> $sa
#> Jan Feb Mar Apr May Jun Jul Aug
#> 2010 1605.463 1603.509 1599.509 1595.505 1595.394 1597.103 1597.239 1597.362
#> 2011 1600.428 1601.546 1600.783 1601.430 1600.255 1598.399 1598.411 1598.378
#> 2012 1613.507 1614.371 1615.852 1615.160 1616.438 1617.222 1617.156 1616.695
#> 2013 1617.355 1617.650 1617.670 1616.597 1616.665 1615.528 1616.855 1616.312
#> 2014 1615.527 1615.767 1616.206 1616.316 1616.417 1615.606 1617.052 1617.441
#> 2015 1615.434 1615.190 1615.242 1615.564 1615.338 1614.885 1615.561 1616.132
#> 2016 1614.192 1614.197 1614.014 1610.859 1613.991 1614.218 1615.173 1613.931
#> 2017 1613.232 1613.186 1613.887 1613.903 1613.389 1613.392 1612.980 1612.992
#> Sep Oct Nov Dec
#> 2010 1597.274 1598.363 1597.035 1592.277
#> 2011 1598.798 1600.152 1599.890 1604.193
#> 2012 1614.771 1614.871 1614.803 1616.766
#> 2013 1616.067 1614.423 1614.222 1613.225
#> 2014 1617.374 1617.297 1616.622 1616.896
#> 2015 1616.031 1615.280 1615.206 1615.134
#> 2016 1613.899 1614.296 1613.903 1610.858
#> 2017
#>
#> $i
#> Jan Feb Mar Apr May Jun Jul Aug
#> 2015 1.038713 1.039307 1.039355 1.039580 1.039412 1.039058 1.039617 1.040171
#> 2016 1.038503 1.038501 1.038355 1.035653 1.038374 1.038502 1.039275 1.038196
#> 2017 1.037606 1.037572 1.038120 1.038252 1.037819 1.037822 1.037535 1.037533
#> Sep Oct Nov Dec
#> 2015 1.040073 1.039404 1.039309 1.039252
#> 2016 1.038173 1.038497 1.038143 1.035510
#> 2017
#>
rh$components
#> $sa
#> Series 1 Series 2 Series 3 Series 4 Series 5 Series 6 Series 7
#> Apr 1982 489.7814 489.7820 489.9185 489.8074 489.7734 489.7716 489.7801
#> May 1982 478.4077 478.4081 478.4049 478.3381 478.3573 478.3630 478.3555
#> Jun 1982 486.3750 486.3750 486.4813 486.4997 486.4432 486.4333 486.4519
#> Jul 1982 485.0509 485.0509 485.0845 485.0822 485.0659 485.0634 485.0687
#> Aug 1982 491.4753 491.4755 491.4003 491.3632 491.4080 491.4169 491.4019
#> Sep 1982 496.6402 496.6400 496.7620 496.8255 496.7489 496.7341 496.7601
#> Oct 1982 481.5520 481.5522 481.4224 481.3790 481.4514 481.4651 481.4411
#> Nov 1982 485.7507 485.7507 485.7675 485.7876 485.7731 485.7701 485.7753
#> Dec 1982 487.7462 487.7459 487.8863 487.9573 487.8703 487.8534 487.8830
#> Jan 1983 446.2985 446.2988 446.0237 445.9522 446.1009 446.1283 446.0792
#> Feb 1983 504.3889 504.3889 504.3729 504.3788 504.3838 504.3845 504.3832
#> Mar 1983 513.0697 513.0705 513.4112 513.1267 513.0623 513.0595 513.0716
#> Apr 1983 560.9349 560.9335 560.5255 560.8100 560.9180 560.9267 560.8990
#> May 1983 481.1329 481.1330 481.2658 481.2525 481.1929 481.1835 481.2024
#> Jun 1983 506.8231 506.8231 506.9469 506.9732 506.9064 506.8944 506.9166
#> Jul 1983 499.9704 499.9708 499.8369 499.7732 499.8530 499.8687 499.8418
#> Aug 1983 509.8119 509.8118 509.9112 509.9449 509.8875 509.8769 509.8962
#> Sep 1983 515.7911 515.7909 515.9203 515.9922 515.9097 515.8936 515.9218
#> Oct 1983 515.8503 515.8506 515.6952 515.6450 515.7314 515.7476 515.7190
#> Nov 1983 528.6648 528.6647 528.6560 528.6918 528.6845 528.6822 528.6855
#> Dec 1983 531.3352 531.3351 531.3222 531.3360 531.3373 531.3371 531.3372
#> Jan 1984 482.4615 482.4616 482.3232 482.3083 482.3768 482.3888 482.3667
#> Feb 1984 534.1901 534.1900 534.2229 534.2531 534.2282 534.2231 534.2319
#> Mar 1984 555.0658 555.0646 554.8899 554.9868 555.0541 555.0606 555.0396
#> Apr 1984 522.5275 522.5287 522.5537 522.3196 522.3737 522.3908 522.3682
#> May 1984 558.9994 558.9992 559.3089 559.3583 559.1980 559.1696 559.2221
#> Jun 1984 553.3318 553.3320 553.3095 553.2819 553.2994 553.3034 553.2973
#> Jul 1984 574.9403 574.9403 574.9345 574.9334 574.9353 574.9358 574.9353
#> Aug 1984 564.0770 564.0768 564.2180 564.2737 564.1905 564.1748 564.2028
#> Sep 1984 571.7151 571.7153 571.5136 571.4641 571.5717 571.5915 571.5561
#> Oct 1984 577.8109 577.8107 577.9520 578.0229 577.9354 577.9185 577.9482
#> Nov 1984 578.6202 578.6199 578.5760 578.6363 578.6382 578.6365 578.6375
#> Dec 1984 572.6642 572.6645 572.4700 572.4156 572.5214 572.5411 572.5061
#> Jan 1985 593.9324 593.9321 593.9785 594.0452 594.0034 593.9943 594.0093
#> Feb 1985 610.7186 610.7185 610.7040 610.7240 610.7242 610.7236 610.7242
#> Mar 1985 606.2387 606.2390 606.0559 605.8712 606.0221 606.0522 605.9980
#> Apr 1985 629.5713 629.5717 629.6924 629.6291 629.5896 629.5853 629.5966
#> May 1985 660.2751 660.2749 660.5959 660.6570 660.4883 660.4582 660.5137
#> Jun 1985 624.9358 624.9363 624.7188 624.6244 624.7531 624.7781 624.7348
#> Jul 1985 632.6764 632.6761 632.8459 632.9370 632.8306 632.8099 632.8462
#> Aug 1985 666.9853 666.9853 666.9841 666.9983 666.9943 666.9933 666.9950
#> Sep 1985 609.8298 609.8297 609.7915 609.8123 609.8235 609.8248 609.8218
#> Oct 1985 660.0490 660.0487 660.1925 660.2643 660.1757 660.1585 660.1886
#> Nov 1985 652.2409 652.2408 651.9513 651.9556 652.0885 652.1106 652.0684
#> Dec 1985 636.9902 636.9902 636.9592 636.9546 636.9681 636.9703 636.9661
#> Jan 1986 658.4198 658.4195 658.5309 658.6129 658.5364 658.5208 658.5473
#> Feb 1986 652.3950 652.3949 652.3855 652.4061 652.4041 652.4032 652.4043
#> Mar 1986 613.5197 613.5229 613.7766 613.0736 613.1636 613.2017 613.1554
#> Apr 1986 657.0349 657.0324 656.7559 657.2359 657.2286 657.2113 657.2249
#> May 1986 726.5704 726.5706 726.6629 726.6427 726.6062 726.6011 726.6123
#> Jun 1986 604.1407 604.1409 604.0891 604.0708 604.1017 604.1079 604.0975
#> Jul 1986 702.1302 702.1297 702.3217 702.4391 702.3166 702.2924 702.3343
#> Aug 1986 677.7230 677.7233 677.5229 677.4664 677.5777 677.5986 677.5616
#> Sep 1986 710.7443 710.7439 710.8929 710.9989 710.8992 710.8791 710.9134
#> Oct 1986 689.4106 689.4103 689.5572 689.6330 689.5425 689.5248 689.5555
#> Nov 1986 657.5241 657.5243 657.0317 656.9636 657.2126 657.2565 657.1755
#> Dec 1986 713.4821 713.4817 713.6653 713.7282 713.6181 713.5969 713.6341
#> Jan 1987 720.7775 720.7774 720.7327 720.7391 720.7546 720.7565 720.7521
#> Feb 1987 708.5767 708.5766 708.5710 708.5900 708.5838 708.5818 708.5845
#> Mar 1987 702.2750 702.2739 702.0471 702.2039 702.2667 702.2712 702.2543
#> Apr 1987 707.7665 707.7685 708.2659 707.8880 707.7616 707.7531 707.7848
#> May 1987 711.3340 711.3345 711.1499 711.0457 711.1617 711.1848 711.1453
#> Jun 1987 714.4647 714.4648 714.5243 714.6481 714.6173 714.6121 714.6220
#> Jul 1987 772.3009 772.3002 772.5351 772.6847 772.5326 772.5023 772.5544
#> Aug 1987 705.4795 705.4798 705.2975 705.2250 705.3290 705.3486 705.3139
#> Sep 1987 720.6744 720.6740 720.8139 720.9109 720.8181 720.7995 720.8313
#> Oct 1987 744.7706 744.7706 744.7225 744.7170 744.7412 744.7455 744.7376
#> Nov 1987 684.1392 684.1391 683.8240 683.8199 683.9669 683.9915 683.9445
#> Dec 1987 750.2354 750.2351 750.4557 750.4965 750.3701 750.3462 750.3885
#> Jan 1988 755.4472 755.4475 755.2112 755.0970 755.2301 755.2549 755.2106
#> Feb 1988 737.7953 737.7951 737.8789 737.8920 737.8376 737.8266 737.8453
#> Mar 1988 757.3783 757.3798 757.8533 757.5342 757.3905 757.3758 757.4152
#> Apr 1988 788.1045 788.1035 787.9317 788.0751 788.1026 788.1008 788.0965
#> May 1988 744.9301 744.9301 744.9356 744.8881 744.8885 744.8889 744.8885
#> Jun 1988 758.1057 758.1062 757.9532 758.2765 758.3721 758.3915 758.3586
#> Jul 1988 756.7464 756.7465 756.5891 756.5544 756.6337 756.6476 756.6218
#> Aug 1988 748.1180 748.1177 748.3742 748.4203 748.2815 748.2555 748.3015
#> Sep 1988 776.6342 776.6338 776.7673 776.8533 776.7642 776.7461 776.7768
#> Oct 1988 774.3288 774.3291 774.0685 773.9507 774.0981 774.1258 774.0767
#> Nov 1988 785.0666 785.0661 785.0056 785.0569 785.0610 785.0587 785.0595
#> Dec 1988 809.8857 809.8857 809.9230 809.8579 809.8395 809.8363 809.8423
#> Jan 1989 753.7145 753.7145 753.7039 753.6471 753.6507 753.6511 753.6501
#> Feb 1989 768.3158 768.3156 768.3654 768.3284 768.2959 768.2893 768.3005
#> Mar 1989 793.0857 793.0880 793.7408 793.2278 793.0464 793.0308 793.0786
#> Apr 1989 787.6516 787.6497 787.0708 787.3452 787.5164 787.5332 787.4868
#> May 1989 769.3811 769.3807 769.5890 769.6059 769.4818 769.4578 769.4997
#> Jun 1989 816.8783 816.8793 816.5072 817.0668 817.2927 817.3376 817.2606
#> Jul 1989 799.4345 799.4346 799.3145 799.2598 799.3205 799.3312 799.3113
#> Aug 1989 832.7572 832.7571 833.0477 833.0386 832.8945 832.8683 832.9154
#> Sep 1989 823.1351 823.1351 823.0319 823.0113 823.0597 823.0679 823.0523
#> Oct 1989 784.5014 784.5013 784.4838 784.4306 784.4359 784.4365 784.4351
#> Nov 1989 827.2701 827.2697 827.2920 827.3043 827.2718 827.2637 827.2760
#> Dec 1989 819.9319 819.9323 819.7598 819.5866 819.6908 819.7111 819.6759
#> Jan 1990 803.6949 803.6945 803.9124 803.9199 803.7919 803.7674 803.8105
#> Feb 1990 812.8680 812.8678 812.9438 812.8889 812.8435 812.8347 812.8501
#> Mar 1990 853.9405 853.9378 853.5321 853.9594 853.9990 853.9878 853.9876
#> Apr 1990 793.7191 793.7216 794.1164 793.5435 793.4951 793.5032 793.5075
#> May 1990 819.7258 819.7254 819.9556 819.9542 819.8173 819.7909 819.8371
#> Jun 1990 866.8506 866.8523 866.0624 866.7072 867.1753 867.2665 867.1082
#> Jul 1990 791.6926 791.6924 791.8253 791.8341 791.7548 791.7395 791.7661
#> Aug 1990 873.7967 873.7968 874.0921 874.0125 873.8760 873.8516 873.8957
#> Sep 1990 814.4823 814.4827 814.1316 814.0105 814.2023 814.2378 814.1742
#> Oct 1990 803.1226 803.1220 803.3545 803.3751 803.2341 803.2067 803.2544
#> Nov 1990 832.2746 832.2742 832.3950 832.3806 832.3026 832.2871 832.3137
#> Dec 1990 824.6827 824.6830 824.5082 824.3400 824.4420 824.4614 824.4273
#> Jan 1991 820.7051 820.7046 820.9196 820.9335 820.8047 820.7799 820.8233
#> Feb 1991 832.7132 832.7129 832.8016 832.7649 832.7094 832.6986 832.7174
#> Mar 1991 815.7829 815.7861 816.0047 815.2798 815.3602 815.3954 815.3547
#> Apr 1991 831.3381 831.3346 831.0825 831.6565 831.5844 831.5499 831.5885
#> May 1991 826.5630 826.5625 826.8263 826.8523 826.6940 826.6635 826.7169
#> Jun 1991 781.8040 781.8060 780.8666 781.3625 781.9154 782.0226 781.8360
#> Jul 1991 881.1553 881.1550 881.4668 881.4874 881.3158 881.2833 881.3403
#> Aug 1991 899.7542 899.7546 899.8220 899.6087 899.6041 899.6044 899.6047
#> Sep 1991 804.8990 804.8989 804.7870 804.7643 804.8160 804.8246 804.8083
#> Oct 1991 865.0320 865.0314 865.3104 865.3489 865.1794 865.1464 865.2040
#> Nov 1991 857.2559 857.2559 857.1513 857.0384 857.0939 857.1040 857.0859
#> Dec 1991 842.3365 842.3364 842.3855 842.3268 842.2964 842.2904 842.3009
#> Jan 1992 871.1726 871.1722 871.4383 871.4594 871.3012 871.2725 871.3234
#> Feb 1992 887.5598 887.5599 887.4683 887.3733 887.4241 887.4336 887.4168
#> Mar 1992 831.0295 831.0275 830.7189 831.0291 831.0673 831.0611 831.0576
#> Apr 1992 877.9739 877.9755 878.5004 878.1311 877.9710 877.9543 877.9985
#> May 1992 890.3566 890.3569 890.1427 889.9917 890.1137 890.1368 890.0961
#> Jun 1992 846.3356 846.3366 845.8862 846.5588 846.8226 846.8742 846.7850
#> Jul 1992 872.5942 872.5943 872.8352 872.7874 872.6700 872.6484 872.6867
#> Aug 1992 856.9261 856.9268 856.7356 856.3940 856.5188 856.5411 856.5008
#> Sep 1992 881.3271 881.3266 881.4392 881.5156 881.4363 881.4200 881.4477
#> Oct 1992 910.1186 910.1183 910.1784 910.1355 910.0936 910.0850 910.1000
#> Nov 1992 886.1769 886.1769 886.0718 885.9646 886.0206 886.0308 886.0128
#> Dec 1992 863.5623 863.5617 863.8321 863.8952 863.7336 863.7025 863.7573
#> Jan 1993 911.4995 911.5001 911.2524 911.0783 911.2190 911.2493 911.1972
#> Feb 1993 878.1341 878.1339 878.2171 878.2315 878.1827 878.1736 878.1897
#> Mar 1993 886.7496 886.7475 886.7242 887.1251 887.0209 886.9898 887.0321
#> Apr 1993 884.0821 884.0833 884.5592 884.3046 884.1562 884.1397 884.1808
#> May 1993 917.2408 917.2411 917.0461 916.9455 917.0668 917.0902 917.0488
#> Jun 1993 912.1455 912.1460 911.9087 912.4127 912.5586 912.5874 912.5374
#> Jul 1993 859.2402 859.2410 859.1458 858.9457 859.0435 859.0636 859.0284
#> Aug 1993 856.4528 856.4527 856.4180 856.1374 856.1205 856.1061 856.1265
#> Sep 1993 908.6756 908.6753 908.6631 908.7540 908.7067 908.7009 908.7132
#> Oct 1993 900.9739 900.9741 900.8122 900.7087 900.8073 900.8260 900.7932
#> Nov 1993 882.9167 882.9163 883.0899 883.1169 883.0210 883.0027 883.0351
#> Dec 1993 893.4080 893.4075 893.6767 893.7615 893.6091 893.5803 893.6318
#> Jan 1994 889.6326 889.6333 889.4097 889.2444 889.3788 889.4102 889.3578
#> Feb 1994 907.6762 907.6761 907.7372 907.7649 907.7366 907.7322 907.7412
#> Mar 1994 932.0172 932.0193 932.6592 932.2787 932.1027 932.0881 932.1339
#> Apr 1994 917.2076 917.2048 916.7486 917.2931 917.3728 917.3712 917.3552
#> May 1994 911.2067 911.2066 911.2617 911.2942 911.2778 911.2760 911.2801
#> Jun 1994 943.1539 943.1544 943.2018 943.4905 943.4870 943.4828 943.4789
#> Jul 1994 871.8843 871.8856 871.5114 871.2215 871.4910 871.5447 871.4514
#> Aug 1994 927.7686 927.7676 927.8881 927.6366 927.4743 927.4214 927.5065
#> Sep 1994 954.3466 954.3464 954.2039 954.3095 954.2953 954.3009 954.2977
#> Oct 1994 955.4166 955.4168 955.2481 955.1666 955.2832 955.3063 955.2675
#> Nov 1994 909.9551 909.9548 910.1563 910.2154 910.1167 910.0989 910.1325
#> Dec 1994 956.8077 956.8076 956.8097 956.8019 956.8187 956.8232 956.8188
#> Jan 1995 887.2674 887.2679 887.2724 887.2470 887.2204 887.2263 887.2173
#> Feb 1995 933.8338 933.8338 933.8723 933.8833 933.8864 933.8869 933.8890
#> Mar 1995 954.3065 954.3041 954.2649 954.7619 954.6682 954.6363 954.6801
#> Apr 1995 975.8799 975.8818 975.8096 975.4302 975.6153 975.6628 975.5934
#> May 1995 925.6853 925.6850 925.9902 926.1176 925.9729 925.9449 925.9954
#> Jun 1995 943.7811 943.7824 944.1008 944.2480 944.1008 944.0594 944.0925
#> Jul 1995 967.0499 967.0499 966.6413 966.4564 966.6925 966.7613 966.6599
#> Aug 1995 1011.1904 1011.1891 1011.2303 1010.9281 1010.7835 1010.7207 1010.8205
#> Sep 1995 932.1119 932.1124 931.5850 931.5620 931.7463 931.7912 931.7219
#> Oct 1995 938.3447 938.3447 938.4298 938.4452 938.4399 938.4377 938.4444
#> Nov 1995 966.6773 966.6769 966.9368 967.0138 966.9093 966.8885 966.9293
#> Dec 1995 985.8138 985.8143 985.5317 985.3928 985.6033 985.6435 985.5799
#> Jan 1996 970.0874 970.0879 970.3104 970.4615 970.2187 970.1984 970.2316
#> Feb 1996 974.4354 974.4352 974.5481 974.5449 974.5311 974.5276 974.5422
#> Mar 1996 964.6459 964.6456 964.2387 964.2533 964.4771 964.5127 964.4513
#> Apr 1996 959.5505 959.5497 959.8186 959.9090 959.8060 959.7885 959.8279
#> May 1996 967.3396 967.3392 967.6371 967.7157 967.5922 967.5668 967.6165
#> Jun 1996 976.0106 976.0150 975.8642 975.8098 975.9312 975.9229 975.8471
#> Jul 1996 956.9302 956.9274 957.1850 957.4199 957.1960 957.1967 957.2339
#> Aug 1996 1035.4355 1035.4348 1035.1840 1034.7632 1034.8042 1034.7737 1034.8174
#> Sep 1996 909.4112 909.4117 908.8811 908.8196 909.0231 909.0685 908.9977
#> Oct 1996 947.9291 947.9287 948.2470 948.3249 948.2005 948.1724 948.2241
#> Nov 1996 982.9305 982.9306 982.9251 982.8689 982.9371 982.9460 982.9343
#> Dec 1996 965.8446 965.8445 965.8276 965.7669 965.8415 965.8541 965.8424
#> Jan 1997 974.5104 974.5111 974.6548 974.9024 974.6104 974.5937 974.6188
#> Feb 1997 1002.3719 1002.3716 1002.3867 1002.3114 1002.3743 1002.3870 1002.3846
#> Mar 1997 987.2412 987.2450 987.5789 986.6589 986.8107 986.8688 986.8186
#> Apr 1997 944.0753 944.0695 943.5963 944.5029 944.5187 944.4981 944.5288
#> May 1997 1014.7493 1014.7487 1014.7613 1014.6847 1014.7458 1014.7624 1014.7612
#> Jun 1997 893.0519 893.0593 893.2716 893.3572 893.2271 893.1353 893.1175
#> Jul 1997 1005.6236 1005.6172 1005.9759 1006.4289 1006.1042 1006.1181 1006.1745
#> Aug 1997 983.7469 983.7478 983.2101 982.7554 982.9855 982.9844 982.9580
#> Sep 1997 1015.2116 1015.2122 1014.9216 1014.9314 1014.9919 1015.0042 1014.9836
#> Oct 1997 995.0921 995.0919 995.4023 995.4290 995.3292 995.3017 995.3513
#> Nov 1997 1015.8099 1015.8105 1015.5160 1015.2968 1015.5565 1015.5999 1015.5316
#> Dec 1997 978.0242 978.0235 978.2819 978.2831 978.2217 978.2078 978.2499
#> Jan 1998 1068.1742 1068.1753 1067.9847 1068.1853 1068.0195 1068.0395 1068.0044
#> Feb 1998 990.1485 990.1477 990.1609 990.0530 990.1340 990.1530 990.1525
#> Mar 1998 987.5716 987.5682 987.1675 987.5615 987.6603 987.6783 987.6723
#> Apr 1998 1027.9917 1027.9911 1028.4376 1028.1790 1028.1029 1028.1121 1028.1564
#> May 1998 1000.4726 1000.4719 1000.1741 999.9553 1000.2004 1000.2584 1000.2049
#> Jun 1998 913.2368 913.2473 913.7532 913.9632 913.6118 913.4437 913.4726
#> Jul 1998 1066.7339 1066.7251 1067.1563 1067.7473 1067.3572 1067.3800 1067.4523
#> Aug 1998 1029.3287 1029.3309 1028.8567 1028.5223 1028.7059 1028.7041 1028.6641
#> Sep 1998 1015.7816 1015.7825 1015.6471 1015.6829 1015.6538 1015.6508 1015.6506
#> Oct 1998 1052.8334 1052.8338 1052.8153 1052.7492 1052.7843 1052.7926 1052.7842
#> Nov 1998 1024.9965 1024.9964 1024.9580 1024.8868 1024.9388 1024.9558 1024.9442
#> Dec 1998 1027.1986 1027.1975 1027.4157 1027.1743 1027.3398 1027.3220 1027.3548
#> Jan 1999 1104.2878 1104.2891 1103.7635 1103.9136 1103.8837 1103.9444 1103.8492
#> Feb 1999 1025.6914 1025.6904 1025.6938 1025.6138 1025.6636 1025.6911 1025.6886
#> Mar 1999 1041.6625 1041.6624 1042.1340 1041.9647 1041.7635 1041.7770 1041.8303
#> Apr 1999 1039.9494 1039.9448 1039.7719 1040.2682 1040.2415 1040.2475 1040.2898
#> May 1999 1044.8563 1044.8552 1044.5142 1044.2946 1044.5434 1044.6177 1044.5606
#> Jun 1999 964.7150 964.7283 965.2430 965.4819 965.0664 964.8607 964.8864
#> Jul 1999 1086.7295 1086.7190 1086.8592 1087.4147 1087.1658 1087.2354 1087.2894
#> Aug 1999 1057.3548 1057.3578 1057.2503 1057.1600 1057.1418 1057.1065 1057.1073
#> Sep 1999 1085.5328 1085.5332 1085.5708 1085.6916 1085.5145 1085.4754 1085.4683
#> Oct 1999 1087.3209 1087.3218 1086.9554 1086.7843 1086.9772 1087.0226 1086.9564
#> Nov 1999 1075.6290 1075.6283 1075.8393 1075.9504 1075.7502 1075.7303 1075.7969
#> Dec 1999 1073.5427 1073.5412 1073.7637 1073.2733 1073.6658 1073.6384 1073.6744
#> Jan 2000 1083.2414 1083.2426 1082.7152 1082.8449 1082.8294 1082.9030 1082.8038
#> Feb 2000 1072.0060 1072.0051 1072.0906 1072.0925 1072.0548 1072.0882 1072.0892
#> Mar 2000 1068.3071 1068.3033 1068.0798 1068.8187 1068.6311 1068.6505 1068.6758
#> Apr 2000 1105.0146 1105.0164 1104.8602 1104.2867 1104.5343 1104.6440 1104.5430
#> May 2000 1068.4155 1068.4141 1068.6523 1068.7073 1068.5892 1068.6122 1068.6407
#> Jun 2000 1254.8964 1254.9127 1255.4944 1255.7946 1255.2840 1255.0522 1255.0423
#> Jul 2000 896.7585 896.7500 896.6593 897.0070 896.9000 896.9196 897.0767
#> Aug 2000 1176.2263 1176.2289 1176.5603 1176.7093 1176.4354 1176.3709 1176.3931
#> Sep 2000 1158.3382 1158.3377 1158.2151 1158.3152 1158.1811 1158.1527 1158.0283
#> Oct 2000 1103.3154 1103.3151 1103.2254 1103.2252 1103.2072 1103.2266 1103.1875
#> Nov 2000 1092.9915 1092.9909 1093.0882 1093.3267 1092.9947 1092.9535 1093.1332
#> Dec 2000 1154.5522 1154.5512 1154.0805 1153.0480 1154.1062 1154.1489 1154.0212
#> Jan 2001 1113.1358 1113.1354 1113.2762 1113.6065 1113.2649 1113.2845 1113.2904
#> Feb 2001 1140.1824 1140.1822 1140.1778 1140.2216 1140.1791 1140.2411 1140.2005
#> Mar 2001 1213.7453 1213.7436 1213.2024 1213.9255 1213.8533 1213.9395 1213.8729
#> Apr 2001 1107.6209 1107.6247 1107.7892 1107.3917 1107.4169 1107.5188 1107.4506
#> May 2001 1145.8478 1145.8490 1146.0660 1146.1788 1146.0405 1146.0977 1146.0858
#> Jun 2001 1101.7585 1101.7738 1101.8771 1101.9874 1101.7944 1101.6859 1101.5795
#> Jul 2001 1145.2850 1145.2756 1145.5805 1146.1241 1145.7596 1145.6732 1146.1492
#> Aug 2001 1120.6899 1120.6949 1120.9868 1121.1230 1120.8932 1120.8522 1120.8267
#> Sep 2001 1125.6884 1125.6758 1125.2434 1125.3025 1125.2570 1125.1522 1124.9026
#> Oct 2001 1155.0838 1155.0839 1155.3234 1155.4292 1155.2363 1155.2177 1155.2007
#> Nov 2001 1190.0777 1190.0772 1190.1199 1190.4367 1189.9753 1189.8759 1190.1940
#> Dec 2001 1212.1351 1212.1314 1211.6767 1210.5712 1211.6816 1211.7134 1211.5636
#> Jan 2002 1172.2810 1172.2751 1172.4817 1172.6744 1172.4353 1172.4597 1172.4639
#> Feb 2002 1174.0296 1174.0235 1174.0676 1174.1183 1174.0625 1174.1252 1174.0883
#> Mar 2002 1188.4073 1188.4067 1188.7142 1187.8968 1187.8834 1188.0299 1187.9100
#> Apr 2002 1193.6761 1193.7027 1193.0060 1194.3132 1194.3252 1194.8211 1194.7673
#> May 2002 1222.0174 1222.0119 1222.2603 1222.4010 1222.2451 1222.2976 1222.2762
#> Jun 2002 1222.1294 1222.1794 1221.7829 1221.6932 1221.7828 1221.5568 1221.1277
#> Jul 2002 1115.9056 1115.8896 1116.5761 1117.1313 1116.5485 1116.3006 1117.0283
#> Aug 2002 1251.8479 1251.8441 1251.7742 1251.7656 1251.7534 1251.7329 1251.6206
#> Sep 2002 1165.1593 1165.1226 1165.0041 1165.2278 1164.9412 1164.6555 1164.4597
#> Oct 2002 1234.1158 1234.1084 1234.3528 1234.4592 1234.2640 1234.2138 1234.1745
#> Nov 2002 1332.1268 1332.1219 1331.7297 1331.9723 1331.6090 1331.5036 1331.9082
#> Dec 2002 1250.9911 1250.9837 1250.8939 1249.8813 1250.8002 1250.8101 1250.6892
#> Jan 2003 1248.3799 1248.3751 1248.7062 1248.8401 1248.5918 1248.6425 1248.6377
#> Feb 2003 1250.5183 1250.5189 1250.6653 1250.7316 1250.5992 1250.7054 1250.6679
#> Mar 2003 1301.1095 1301.1109 1300.2542 1300.8737 1300.9919 1301.2008 1301.0597
#> Apr 2003 1289.0469 1289.1376 1289.6933 1289.7143 1289.5445 1290.7071 1290.6946
#> May 2003 1297.1072 1297.0774 1296.8421 1296.9476 1297.3062 1297.0799 1297.1290
#> Jun 2003 1285.0511 1285.1550 1285.0669 1285.0802 1284.9533 1284.6682 1284.0671
#> Jul 2003 1228.0379 1227.9305 1228.6913 1229.3867 1228.7125 1228.5111 1229.2281
#> Aug 2003 1301.3664 1301.3712 1300.9600 1300.7449 1300.9767 1301.1432 1300.9644
#> Sep 2003 1303.4671 1303.3514 1303.5692 1303.9771 1303.4516 1302.4575 1302.2757
#> Oct 2003 1340.9711 1340.9886 1341.1844 1341.1212 1340.9616 1340.8989 1340.8942
#> Nov 2003 1377.0629 1377.0831 1376.1042 1375.8865 1375.8493 1375.6926 1376.0670
#> Dec 2003 1299.8832 1299.9003 1300.0514 1299.1875 1299.6858 1299.5566 1299.5557
#> Jan 2004 1352.3278 1352.3499 1352.1638 1351.8368 1351.8764 1351.8358 1351.8035
#> Feb 2004 1329.1547 1329.1818 1328.9096 1328.5561 1328.6374 1328.6319 1328.5868
#> Mar 2004 1309.6327 1309.4229 1310.8743 1311.9105 1311.2631 1311.6641 1311.6395
#> Apr 2004 1342.1537 1342.4545 1343.0668 1344.8131 1344.7859 1347.9739 1347.9479
#> May 2004 1375.2853 1375.2237 1374.2548 1374.0324 1375.0293 1374.1833 1374.3381
#> Jun 2004 1399.2021 1399.3618 1399.4607 1399.3381 1398.9336 1398.2428 1397.4436
#> Jul 2004 1366.5354 1366.3061 1366.5768 1366.9901 1366.4530 1366.0751 1366.6440
#> Aug 2004 1360.6271 1360.6255 1360.5043 1360.1849 1360.1434 1360.1826 1360.0810
#> Sep 2004 1434.9380 1434.7240 1434.9024 1435.0928 1434.5525 1432.7322 1432.5059
#> Oct 2004 1415.7833 1415.8077 1415.1295 1414.5131 1414.7615 1414.7391 1414.5692
#> Nov 2004 1358.6658 1358.6996 1358.4248 1358.2363 1357.7927 1357.5438 1358.0379
#> Dec 2004 1354.2072 1354.2532 1354.2872 1353.5460 1353.8021 1353.6801 1353.6830
#> Jan 2005 1433.2075 1433.2869 1432.4593 1431.7461 1432.3063 1432.3241 1432.2756
#> Feb 2005 1426.3665 1426.4697 1426.2390 1425.7554 1426.0275 1425.9808 1426.1479
#> Mar 2005 1429.0694 1428.6781 1433.2358 1432.8538 1432.0112 1432.9328 1433.0137
#> Apr 2005 1279.5127 1280.0038 1278.9858 1283.5861 1284.3922 1288.9742 1289.0361
#> May 2005 1359.4153 1359.3869 1358.3652 1358.2123 1359.7933 1358.3846 1358.9768
#> Jun 2005 1454.7334 1454.9467 1455.5282 1454.5116 1452.3273 1450.6889 1450.1545
#> Jul 2005 1351.9597 1351.3915 1351.0700 1351.5350 1350.5077 1350.1365 1348.9974
#> Aug 2005 1395.7800 1395.8075 1395.8664 1395.4823 1395.5007 1395.4839 1395.6599
#> Sep 2005 1393.5351 1393.2448 1393.2773 1393.2421 1393.0497 1390.6513 1390.6008
#> Oct 2005 1380.4411 1380.4607 1379.6547 1378.8242 1379.2573 1379.2465 1379.2587
#> Nov 2005 1371.1440 1371.1725 1370.7693 1370.2184 1370.1136 1369.8914 1370.3413
#> Dec 2005 1393.6006 1393.6440 1393.1392 1392.3690 1392.7191 1392.6827 1392.6969
#> Jan 2006 1348.5802 1348.6449 1348.1011 1347.3970 1347.9739 1348.0544 1348.1082
#> Feb 2006 1423.2141 1424.0649 1423.0079 1421.9196 1422.4453 1422.4871 1422.7266
#> Mar 2006 1381.2632 1380.6240 1385.2094 1386.9239 1386.2627 1387.6163 1387.6120
#> Apr 2006 1433.4765 1434.1782 1434.1226 1439.1856 1440.7739 1447.7231 1447.6568
#> May 2006 1354.6354 1354.5887 1353.8548 1353.8011 1355.9139 1354.8329 1356.2309
#> Jun 2006 1430.5311 1430.7044 1431.8897 1430.1853 1425.9274 1421.3582 1421.6844
#> Jul 2006 1467.2624 1466.3117 1465.9890 1466.8095 1465.0430 1464.5846 1461.5699
#> Aug 2006 1428.8617 1428.8558 1428.8170 1428.4188 1428.9048 1428.8043 1429.0239
#> Sep 2006 1349.6938 1349.3808 1348.8113 1348.5017 1349.0497 1346.8691 1346.8050
#> Oct 2006 1406.5500 1406.5186 1405.7333 1404.8499 1405.3776 1405.4167 1405.5066
#> Nov 2006 1451.5769 1451.5627 1450.8326 1449.7681 1449.8389 1449.8643 1450.1325
#> Dec 2006 1451.4022 1451.4050 1449.9942 1448.6594 1449.0492 1449.3877 1449.2882
#> Jan 2007 1403.6328 1403.6567 1402.8958 1401.8397 1401.9372 1402.4069 1402.5719
#> Feb 2007 1439.4292 1441.3640 1438.9610 1436.8468 1436.9789 1437.4694 1437.8844
#> Mar 2007 1528.2590 1527.4855 1536.9031 1537.7488 1536.8482 1538.9138 1538.9790
#> Apr 2007 1375.2511 1375.8702 1375.0751 1385.5885 1386.4567 1393.0741 1393.3207
#> May 2007 1453.7242 1453.7386 1452.4766 1451.1307 1459.1424 1458.9888 1461.5231
#> Jun 2007 1519.9377 1520.1108 1522.2025 1518.9814 1511.0509 1501.6888 1503.4190
#> Jul 2007 1488.8691 1487.6635 1487.8065 1489.8264 1486.4098 1486.6278 1480.3579
#> Aug 2007 1517.7878 1517.7848 1517.6666 1517.2591 1518.5488 1518.8724 1519.5735
#> Sep 2007 1524.7403 1524.3065 1522.9824 1522.1932 1523.4129 1521.1933 1521.2442
#> Oct 2007 1498.9680 1498.7515 1497.8821 1496.8307 1497.3172 1497.6245 1497.6700
#> Nov 2007 1514.3281 1514.0298 1512.8083 1511.1220 1511.3258 1511.7064 1511.8366
#> Dec 2007 1529.0965 1528.7664 1526.5330 1524.3735 1524.6333 1525.2635 1525.1801
#> Jan 2008 1530.9237 1530.4443 1528.7193 1526.6378 1526.3832 1527.2688 1527.4636
#> Feb 2008 1518.0801 1523.1734 1519.1114 1515.3875 1514.7174 1515.5734 1516.1781
#> Mar 2008 1492.4593 1491.5173 1507.5445 1505.5172 1503.9472 1506.3966 1506.5571
#> Apr 2008 1523.4169 1524.0033 1520.7866 1542.4241 1542.5338 1549.6870 1550.3051
#> May 2008 1516.5324 1516.5801 1514.4943 1511.0739 1525.2580 1526.7175 1530.4172
#> Jun 2008 1443.1649 1443.2256 1445.9769 1441.9870 1431.9626 1418.7535 1422.0356
#> Jul 2008 1586.7076 1585.3893 1586.0275 1589.0499 1584.3017 1585.0171 1574.8275
#> Aug 2008 1494.5672 1494.4652 1493.3944 1492.5499 1495.0448 1495.6235 1496.5275
#> Sep 2008 1535.5395 1535.0456 1534.4430 1533.5416 1534.3663 1532.6617 1533.0309
#> Oct 2008 1511.5927 1511.1091 1509.8514 1508.5326 1509.0264 1509.5690 1509.2383
#> Nov 2008 1535.8464 1535.1657 1532.5966 1530.1206 1530.7198 1531.6166 1531.4444
#> Dec 2008 1579.4171 1578.6328 1576.5080 1573.9618 1573.3797 1574.3208 1574.3702
#> Jan 2009 1586.0278 1584.9169 1581.7209 1578.5131 1578.1090 1579.5513 1579.7655
#> Feb 2009 1469.9006 1478.0271 1472.7526 1467.9002 1466.6484 1467.9624 1468.8057
#> Mar 2009 1589.2688 1588.2901 1610.4715 1608.6529 1606.4642 1609.0366 1609.8419
#> Apr 2009 1567.3599 1567.8104 1564.0648 1592.8392 1591.8062 1597.4002 1598.7703
#> May 2009 1623.1338 1623.3003 1620.1111 1614.0810 1635.8743 1639.0920 1643.9939
#> Jun 2009 1542.4727 1542.4819 1546.9390 1541.5766 1527.5184 1510.5232 1515.7306
#> Jul 2009 1569.3111 1567.9448 1568.5266 1572.4855 1566.5123 1567.9150 1553.0927
#> Aug 2009 1584.1184 1583.9023 1582.5671 1581.5674 1585.1149 1586.0150 1587.7584
#> Sep 2009 1557.8488 1557.2097 1556.4872 1555.0731 1556.0086 1554.7616 1555.5827
#> Oct 2009 1611.4142 1610.5139 1608.6398 1606.8980 1607.6955 1608.4772 1607.8644
#> Nov 2009 1577.7245 1576.4873 1574.2066 1571.6392 1572.1281 1573.2208 1573.2247
#> Dec 2009 1535.4651 1534.1066 1531.6602 1528.6404 1528.2864 1529.3407 1529.4763
#> Jan 2010 1605.4633 1603.5093 1599.5094 1595.5049 1595.3936 1597.1029 1597.2394
#> Feb 2010 NaN 1564.3950 1558.0710 1551.9325 1550.2525 1551.8930 1552.7824
#> Mar 2010 NaN NaN 1537.8629 1533.9158 1531.5293 1533.7252 1534.7676
#> Apr 2010 NaN NaN NaN 1518.1452 1516.9167 1520.7698 1522.3388
#> May 2010 NaN NaN NaN NaN 1527.4073 1531.7269 1537.0530
#> Jun 2010 NaN NaN NaN NaN NaN 1568.0242 1574.5535
#> Jul 2010 NaN NaN NaN NaN NaN NaN 1577.0912
#> Aug 2010 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2010 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2010 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2010 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2010 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2011 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2011 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2011 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2011 NaN NaN NaN NaN NaN NaN NaN
#> May 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2011 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2011 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2011 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 8 Series 9 Series 10 Series 11 Series 12 Series 13 Series 14
#> Apr 1982 489.7827 489.7799 489.7620 489.7842 489.8065 489.8006 489.7988
#> May 1982 478.3521 478.3532 478.3697 478.3544 478.3483 478.3561 478.3545
#> Jun 1982 486.4593 486.4552 486.4147 486.4572 486.4850 486.4690 486.4699
#> Jul 1982 485.0707 485.0694 485.0579 485.0704 485.0791 485.0750 485.0750
#> Aug 1982 491.3957 491.3987 491.4315 491.3982 491.3780 491.3921 491.3907
#> Sep 1982 496.7707 496.7653 496.7085 496.7668 496.8026 496.7796 496.7815
#> Oct 1982 481.4313 481.4363 481.4886 481.4349 481.4012 481.4232 481.4214
#> Nov 1982 485.7774 485.7764 485.7649 485.7766 485.7834 485.7791 485.7795
#> Dec 1982 487.8950 487.8888 487.8244 487.8906 487.9312 487.9049 487.9072
#> Jan 1983 446.0594 446.0699 446.1767 446.0662 445.9958 446.0401 446.0368
#> Feb 1983 504.3826 504.3829 504.3858 504.3828 504.3805 504.3820 504.3819
#> Mar 1983 513.0754 513.0715 513.0460 513.0774 513.1147 513.0997 513.0973
#> Apr 1983 560.8897 560.8979 560.9568 560.8874 560.8228 560.8460 560.8495
#> May 1983 481.2097 481.2053 481.1642 481.2082 481.2389 481.2229 481.2232
#> Jun 1983 506.9254 506.9205 506.8724 506.9227 506.9554 506.9362 506.9373
#> Jul 1983 499.8309 499.8363 499.8949 499.8352 499.7988 499.8236 499.8212
#> Aug 1983 509.9039 509.8997 509.8578 509.9013 509.9289 509.9122 509.9134
#> Sep 1983 515.9332 515.9274 515.8661 515.9289 515.9673 515.9423 515.9445
#> Oct 1983 515.7074 515.7134 515.7758 515.7116 515.6713 515.6974 515.6953
#> Nov 1983 528.6869 528.6864 528.6791 528.6860 528.6885 528.6858 528.6864
#> Dec 1983 531.3372 531.3372 531.3371 531.3371 531.3363 531.3366 531.3367
#> Jan 1984 482.3579 482.3627 482.4107 482.3607 482.3277 482.3477 482.3465
#> Feb 1984 534.2354 534.2336 534.2145 534.2341 534.2455 534.2380 534.2387
#> Mar 1984 555.0326 555.0388 555.0836 555.0307 554.9872 554.9990 555.0017
#> Apr 1984 522.3579 522.3611 522.4112 522.3651 522.3485 522.3707 522.3656
#> May 1984 559.2430 559.2315 559.1173 559.2366 559.3146 559.2684 559.2711
#> Jun 1984 553.2947 553.2958 553.3092 553.2961 553.2891 553.2952 553.2943
#> Jul 1984 574.9350 574.9351 574.9362 574.9353 574.9350 574.9359 574.9357
#> Aug 1984 564.2141 564.2082 564.1472 564.2102 564.2497 564.2250 564.2269
#> Sep 1984 571.5418 571.5493 571.6265 571.5468 571.4959 571.5280 571.5256
#> Oct 1984 577.9603 577.9541 577.8893 577.9558 577.9967 577.9703 577.9726
#> Nov 1984 578.6382 578.6383 578.6360 578.6370 578.6338 578.6330 578.6339
#> Dec 1984 572.4920 572.4994 572.5755 572.4970 572.4471 572.4788 572.4764
#> Jan 1985 594.0156 594.0126 593.9797 594.0128 594.0311 594.0178 594.0194
#> Feb 1985 610.7245 610.7244 610.7232 610.7242 610.7237 610.7235 610.7237
#> Mar 1985 605.9762 605.9878 606.1058 605.9836 605.9107 605.9541 605.9506
#> Apr 1985 629.6005 629.5975 629.5734 629.6008 629.6235 629.6145 629.6137
#> May 1985 660.5357 660.5237 660.4032 660.5288 660.6106 660.5617 660.5648
#> Jun 1985 624.7172 624.7261 624.8204 624.7240 624.6647 624.7042 624.7006
#> Jul 1985 632.8609 632.8533 632.7743 632.8554 632.9050 632.8729 632.8757
#> Aug 1985 666.9957 666.9954 666.9916 666.9955 666.9976 666.9965 666.9966
#> Sep 1985 609.8207 609.8215 609.8280 609.8207 609.8147 609.8176 609.8177
#> Oct 1985 660.2008 660.1945 660.1290 660.1962 660.2375 660.2107 660.2130
#> Nov 1985 652.0518 652.0613 652.1528 652.0563 651.9902 652.0277 652.0261
#> Dec 1985 636.9645 636.9654 636.9744 636.9650 636.9585 636.9624 636.9622
#> Jan 1986 658.5582 658.5528 658.4951 658.5538 658.5885 658.5648 658.5672
#> Feb 1986 652.4049 652.4048 652.4021 652.4045 652.4049 652.4040 652.4043
#> Mar 1986 613.1334 613.1391 613.2423 613.1509 613.1318 613.1742 613.1615
#> Apr 1986 657.2330 657.2334 657.2020 657.2223 657.2064 657.1913 657.1999
#> May 1986 726.6164 726.6137 726.5897 726.6159 726.6354 726.6262 726.6261
#> Jun 1986 604.0932 604.0953 604.1180 604.0949 604.0810 604.0907 604.0897
#> Jul 1986 702.3513 702.3427 702.2515 702.3448 702.4014 702.3640 702.3674
#> Aug 1986 677.5467 677.5544 677.6349 677.5520 677.4998 677.5333 677.5306
#> Sep 1986 710.9274 710.9205 710.8457 710.9218 710.9673 710.9365 710.9395
#> Oct 1986 689.5680 689.5617 689.4947 689.5633 689.6053 689.5778 689.5802
#> Nov 1986 657.1432 657.1609 657.3369 657.1532 657.0325 657.1046 657.1003
#> Dec 1986 713.6491 713.6414 713.5604 713.6436 713.6948 713.6615 713.6643
#> Jan 1987 720.7504 720.7516 720.7611 720.7506 720.7423 720.7462 720.7463
#> Feb 1987 708.5858 708.5854 708.5794 708.5849 708.5868 708.5844 708.5849
#> Mar 1987 702.2489 702.2542 702.2900 702.2467 702.2067 702.2182 702.2210
#> Apr 1987 707.7951 707.7852 707.7180 707.7990 707.8774 707.8522 707.8470
#> May 1987 711.1291 711.1372 711.2232 711.1355 711.0825 711.1183 711.1149
#> Jun 1987 714.6260 714.6237 714.6021 714.6249 714.6402 714.6315 714.6319
#> Jul 1987 772.5756 772.5650 772.4515 772.5673 772.6370 772.5902 772.5947
#> Aug 1987 705.2999 705.3071 705.3825 705.3050 705.2563 705.2877 705.2851
#> Sep 1987 720.8444 720.8379 720.7684 720.8391 720.8814 720.8527 720.8555
#> Oct 1987 744.7345 744.7362 744.7532 744.7354 744.7237 744.7307 744.7303
#> Nov 1987 683.9261 683.9366 684.0384 683.9311 683.8580 683.8994 683.8976
#> Dec 1987 750.4056 750.3967 750.3046 750.3994 750.4587 750.4207 750.4238
#> Jan 1988 755.1928 755.2021 755.2986 755.1990 755.1360 755.1757 755.1727
#> Feb 1988 737.8529 737.8492 737.8085 737.8498 737.8744 737.8574 737.8592
#> Mar 1988 757.4291 757.4182 757.3339 757.4302 757.5128 757.4798 757.4767
#> Apr 1988 788.0958 788.0982 788.1070 788.0926 788.0711 788.0736 788.0766
#> May 1988 744.8884 744.8884 744.8891 744.8885 744.8887 744.8890 744.8888
#> Jun 1988 758.3451 758.3517 758.4234 758.3506 758.3073 758.3371 758.3341
#> Jul 1988 756.6115 756.6171 756.6732 756.6147 756.5764 756.5994 756.5980
#> Aug 1988 748.3201 748.3103 748.2098 748.3138 748.3800 748.3388 748.3417
#> Sep 1988 776.7893 776.7832 776.7164 776.7842 776.8246 776.7969 776.7997
#> Oct 1988 774.0569 774.0672 774.1742 774.0638 773.9944 774.0385 774.0350
#> Nov 1988 785.0603 785.0607 785.0588 785.0585 785.0529 785.0516 785.0531
#> Dec 1988 809.8447 809.8434 809.8304 809.8440 809.8528 809.8475 809.8478
#> Jan 1989 753.6498 753.6501 753.6522 753.6497 753.6476 753.6484 753.6485
#> Feb 1989 768.3051 768.3028 768.2785 768.3032 768.3178 768.3076 768.3086
#> Mar 1989 793.0948 793.0810 792.9792 793.0981 793.2060 793.1669 793.1614
#> Apr 1989 787.4706 787.4835 787.5829 787.4686 787.3690 787.4074 787.4117
#> May 1989 769.5167 769.5081 769.4168 769.5103 769.5679 769.5301 769.5335
#> Jun 1989 817.2291 817.2448 817.4127 817.2415 817.1381 817.2079 817.2012
#> Jul 1989 799.3034 799.3077 799.3509 799.3060 799.2769 799.2946 799.2934
#> Aug 1989 832.9342 832.9239 832.8212 832.9285 832.9987 832.9568 832.9592
#> Sep 1989 823.0462 823.0497 823.0835 823.0479 823.0239 823.0376 823.0369
#> Oct 1989 784.4346 784.4350 784.4381 784.4345 784.4313 784.4324 784.4326
#> Nov 1989 827.2812 827.2791 827.2523 827.2783 827.2911 827.2797 827.2816
#> Dec 1989 819.6616 819.6689 819.7455 819.6669 819.6184 819.6500 819.6473
#> Jan 1990 803.8279 803.8190 803.7253 803.8214 803.8809 803.8422 803.8455
#> Feb 1990 812.8563 812.8532 812.8198 812.8539 812.8747 812.8608 812.8621
#> Mar 1990 853.9905 853.9945 853.9931 853.9801 853.9383 853.9347 853.9438
#> Apr 1990 793.5065 793.5021 793.4946 793.5152 793.5588 793.5583 793.5504
#> May 1990 819.8559 819.8463 819.7457 819.8488 819.9122 819.8706 819.8743
#> Jun 1990 867.0437 867.0763 867.4212 867.0682 866.8519 866.9948 866.9820
#> Jul 1990 791.7768 791.7712 791.7134 791.7730 791.8106 791.7866 791.7885
#> Aug 1990 873.9132 873.9033 873.8069 873.9085 873.9772 873.9381 873.9397
#> Sep 1990 814.1486 814.1622 814.3007 814.1573 814.0660 814.1229 814.1188
#> Oct 1990 803.2739 803.2640 803.1600 803.2665 803.3315 803.2885 803.2924
#> Nov 1990 832.3247 832.3193 832.2612 832.3203 832.3555 832.3314 832.3338
#> Dec 1990 824.4134 824.4206 824.4951 824.4183 824.3703 824.4010 824.3986
#> Jan 1991 820.8409 820.8320 820.7375 820.8342 820.8936 820.8545 820.8580
#> Feb 1991 832.7250 832.7212 832.6803 832.7219 832.7469 832.7299 832.7316
#> Mar 1991 815.3350 815.3395 815.4304 815.3518 815.3379 815.3784 815.3660
#> Apr 1991 831.6076 831.6038 831.5175 831.5903 831.5979 831.5590 831.5720
#> May 1991 826.7387 826.7277 826.6113 826.7304 826.8036 826.7554 826.7597
#> Jun 1991 781.7601 781.7987 782.2052 781.7886 781.5321 781.7004 781.6857
#> Jul 1991 881.3633 881.3511 881.2267 881.3558 881.4389 881.3877 881.3911
#> Aug 1991 899.6045 899.6037 899.6027 899.6063 899.6142 899.6144 899.6126
#> Sep 1991 804.8019 804.8055 804.8410 804.8035 804.7780 804.7923 804.7918
#> Oct 1991 865.2274 865.2156 865.0901 865.2185 865.2969 865.2450 865.2497
#> Nov 1991 857.0787 857.0826 857.1220 857.0809 857.0541 857.0702 857.0693
#> Dec 1991 842.3052 842.3031 842.2803 842.3034 842.3170 842.3075 842.3085
#> Jan 1992 871.3438 871.3332 871.2229 871.3364 871.4075 871.3618 871.3655
#> Feb 1992 887.4100 887.4137 887.4505 887.4121 887.3871 887.4021 887.4012
#> Mar 1992 831.0585 831.0621 831.0682 831.0513 831.0159 831.0162 831.0227
#> Apr 1992 878.0142 878.0022 877.9077 878.0150 878.1059 878.0690 878.0659
#> May 1992 890.0797 890.0883 890.1770 890.0853 890.0271 890.0636 890.0609
#> Jun 1992 846.7486 846.7670 846.9611 846.7625 846.6404 846.7212 846.7139
#> Jul 1992 872.7020 872.6933 872.6097 872.6979 872.7578 872.7236 872.7249
#> Aug 1992 856.4845 856.4923 856.5794 856.4917 856.4412 856.4774 856.4730
#> Sep 1992 881.4592 881.4537 881.3932 881.4544 881.4901 881.4649 881.4676
#> Oct 1992 910.1062 910.1032 910.0707 910.1035 910.1224 910.1088 910.1104
#> Nov 1992 886.0055 886.0095 886.0489 886.0078 885.9809 885.9971 885.9961
#> Dec 1992 863.7795 863.7683 863.6491 863.7711 863.8459 863.7967 863.8011
#> Jan 1993 911.1758 911.1865 911.3009 911.1839 911.1131 911.1600 911.1558
#> Feb 1993 878.1962 878.1930 878.1581 878.1936 878.2146 878.2002 878.2017
#> Mar 1993 887.0511 887.0449 886.9516 887.0382 887.0704 887.0300 887.0391
#> Apr 1993 884.1956 884.1848 884.0966 884.1957 884.2772 884.2425 884.2403
#> May 1993 917.0321 917.0409 917.1310 917.0379 916.9791 917.0162 917.0134
#> Jun 1993 912.5169 912.5273 912.6362 912.5246 912.4557 912.5011 912.4971
#> Jul 1993 859.0140 859.0204 859.0964 859.0212 858.9810 859.0128 859.0081
#> Aug 1993 856.1351 856.1306 856.0855 856.1322 856.1621 856.1430 856.1440
#> Sep 1993 908.7184 908.7161 908.6886 908.7162 908.7308 908.7200 908.7216
#> Oct 1993 900.7800 900.7869 900.8585 900.7845 900.7376 900.7670 900.7649
#> Nov 1993 883.0482 883.0415 882.9710 883.0432 883.0876 883.0584 883.0610
#> Dec 1993 893.6526 893.6420 893.5301 893.6447 893.7154 893.6692 893.6733
#> Jan 1994 889.3358 889.3465 889.4623 889.3444 889.2749 889.3225 889.3178
#> Feb 1994 907.7448 907.7430 907.7237 907.7432 907.7547 907.7468 907.7477
#> Mar 1994 932.1494 932.1364 932.0390 932.1522 932.2535 932.2161 932.2113
#> Apr 1994 917.3516 917.3593 917.3928 917.3428 917.2752 917.2860 917.2948
#> May 1994 911.2817 911.2810 911.2722 911.2810 911.2859 911.2824 911.2829
#> Jun 1994 943.4783 943.4780 943.4837 943.4803 943.4832 943.4851 943.4826
#> Jul 1994 871.4134 871.4321 871.6347 871.4292 871.3075 871.3916 871.3828
#> Aug 1994 927.5417 927.5241 927.3380 927.5280 927.6436 927.5656 927.5725
#> Sep 1994 954.2966 954.2976 954.3033 954.2969 954.2897 954.2937 954.2944
#> Oct 1994 955.2516 955.2599 955.3449 955.2571 955.2014 955.2366 955.2341
#> Nov 1994 910.1459 910.1390 910.0664 910.1407 910.1863 910.1565 910.1593
#> Dec 1994 956.8167 956.8179 956.8283 956.8170 956.8088 956.8132 956.8135
#> Jan 1995 887.2129 887.2142 887.2356 887.2155 887.2089 887.2171 887.2150
#> Feb 1995 933.8893 933.8890 933.8860 933.8889 933.8909 933.8895 933.8899
#> Mar 1995 954.6996 954.6934 954.5979 954.6854 954.7154 954.6736 954.6837
#> Apr 1995 975.5629 975.5759 975.7306 975.5777 975.4984 975.5634 975.5544
#> May 1995 926.0155 926.0049 925.8959 926.0082 926.0789 926.0338 926.0374
#> Jun 1995 944.1094 944.0985 944.0168 944.1097 944.1864 944.1503 944.1449
#> Jul 1995 966.6194 966.6422 966.8591 966.6334 966.4812 966.5758 966.5717
#> Aug 1995 1010.8615 1010.8411 1010.6241 1010.8449 1010.9787 1010.8871 1010.8955
#> Sep 1995 931.6940 931.7087 931.8581 931.7044 931.6064 931.6702 931.6658
#> Oct 1995 938.4466 938.4454 938.4320 938.4456 938.4542 938.4487 938.4494
#> Nov 1995 966.9451 966.9368 966.8499 966.9389 966.9944 966.9585 966.9619
#> Dec 1995 985.5533 985.5670 985.7080 985.5620 985.4700 985.5283 985.5245
#> Jan 1996 970.2443 970.2359 970.1659 970.2415 970.2985 970.2678 970.2676
#> Feb 1996 974.5468 974.5442 974.5161 974.5441 974.5612 974.5495 974.5514
#> Mar 1996 964.4262 964.4407 964.5770 964.4315 964.3300 964.3851 964.3842
#> Apr 1996 959.8424 959.8353 959.7541 959.8349 959.8808 959.8468 959.8518
#> May 1996 967.6357 967.6256 967.5197 967.6284 967.6967 967.6529 967.6568
#> Jun 1996 975.8240 975.8311 975.9747 975.8472 975.8108 975.8645 975.8409
#> Jul 1996 957.2503 957.2469 957.1591 957.2401 957.2588 957.2321 957.2443
#> Aug 1996 1034.8355 1034.8267 1034.7322 1034.8273 1034.8837 1034.8426 1034.8466
#> Sep 1996 908.9691 908.9840 909.1369 908.9800 908.8810 908.9462 908.9414
#> Oct 1996 948.2447 948.2338 948.1222 948.2372 948.3100 948.2638 948.2676
#> Nov 1996 982.9289 982.9314 982.9586 982.9306 982.9139 982.9251 982.9244
#> Dec 1996 965.8364 965.8394 965.8686 965.8372 965.8159 965.8281 965.8286
#> Jan 1997 974.6282 974.6210 974.5699 974.6262 974.6718 974.6479 974.6468
#> Feb 1997 1002.3805 1002.3824 1002.3966 1002.3791 1002.3656 1002.3709 1002.3732
#> Mar 1997 986.7903 986.7972 986.9199 986.8101 986.7850 986.8392 986.8260
#> Apr 1997 944.5419 944.5451 944.4875 944.5164 944.4692 944.4399 944.4622
#> May 1997 1014.7560 1014.7590 1014.7741 1014.7537 1014.7357 1014.7417 1014.7453
#> Jun 1997 893.1258 893.1125 893.1075 893.1516 893.2609 893.2484 893.2122
#> Jul 1997 1006.2021 1006.2001 1006.0586 1006.1820 1006.1823 1006.1453 1006.1716
#> Aug 1997 982.9483 982.9526 983.0081 982.9535 982.9286 982.9480 982.9424
#> Sep 1997 1014.9752 1014.9789 1015.0225 1014.9801 1014.9589 1014.9779 1014.9748
#> Oct 1997 995.3702 995.3597 995.2549 995.3634 995.4354 995.3912 995.3942
#> Nov 1997 1015.5025 1015.5168 1015.6702 1015.5121 1015.4153 1015.4778 1015.4734
#> Dec 1997 978.2649 978.2568 978.1719 978.2570 978.3075 978.2721 978.2776
#> Jan 1998 1067.9893 1067.9942 1068.0765 1067.9952 1067.9535 1067.9837 1067.9790
#> Feb 1998 990.1482 990.1503 990.1640 990.1449 990.1259 990.1312 990.1359
#> Mar 1998 987.6703 987.6753 987.6978 987.6575 987.5896 987.5960 987.6096
#> Apr 1998 1028.1652 1028.1594 1028.0851 1028.1576 1028.2034 1028.1740 1028.1815
#> May 1998 1000.1750 1000.1918 1000.3294 1000.1780 1000.0723 1000.1293 1000.1326
#> Jun 1998 913.5063 913.4765 913.3491 913.5367 913.7741 913.7067 913.6570
#> Jul 1998 1067.4862 1067.4870 1067.3056 1067.4596 1067.4483 1067.4037 1067.4396
#> Aug 1998 1028.6464 1028.6548 1028.7412 1028.6576 1028.6272 1028.6586 1028.6472
#> Sep 1998 1015.6469 1015.6488 1015.6534 1015.6502 1015.6596 1015.6611 1015.6574
#> Oct 1998 1052.7761 1052.7804 1052.8078 1052.7781 1052.7654 1052.7754 1052.7738
#> Nov 1998 1024.9352 1024.9400 1024.9752 1024.9359 1024.9108 1024.9246 1024.9252
#> Dec 1998 1027.3708 1027.3598 1027.2893 1027.3630 1027.4145 1027.3838 1027.3895
#> Jan 1999 1103.8127 1103.8278 1104.0384 1103.8253 1103.6925 1103.7755 1103.7685
#> Feb 1999 1025.6891 1025.6865 1025.6985 1025.6839 1025.6574 1025.6619 1025.6688
#> Mar 1999 1041.8553 1041.8356 1041.7243 1041.8457 1041.9111 1041.8662 1041.8743
#> Apr 1999 1040.3039 1040.3022 1040.2296 1040.2800 1040.2534 1040.2207 1040.2434
#> May 1999 1044.5302 1044.5466 1044.6945 1044.5311 1044.4044 1044.4658 1044.4725
#> Jun 1999 964.9296 964.8905 964.7453 964.9691 965.2528 965.1745 965.1115
#> Jul 1999 1087.2547 1087.3179 1087.2642 1087.2335 1087.1088 1087.1268 1087.1668
#> Aug 1999 1057.1063 1057.1050 1057.0998 1057.1156 1057.1586 1057.1511 1057.1374
#> Sep 1999 1085.5029 1085.4691 1085.4228 1085.5043 1085.5707 1085.5486 1085.5443
#> Oct 1999 1086.9178 1086.9398 1087.1050 1086.9288 1086.8276 1086.8937 1086.8872
#> Nov 1999 1075.7835 1075.8023 1075.7246 1075.7756 1075.8319 1075.7981 1075.8041
#> Dec 1999 1073.6924 1073.6794 1073.6026 1073.6833 1073.7497 1073.7148 1073.7206
#> Jan 2000 1082.7732 1082.7832 1082.9917 1082.7845 1082.6402 1082.7230 1082.7168
#> Feb 2000 1072.1141 1072.0918 1072.0615 1072.1051 1072.0906 1072.0781 1072.0861
#> Mar 2000 1068.7263 1068.6914 1068.5895 1068.7010 1068.6766 1068.6311 1068.6521
#> Apr 2000 1104.5280 1104.5213 1104.7125 1104.5388 1104.3978 1104.4791 1104.4772
#> May 2000 1068.6895 1068.6502 1068.5437 1068.6735 1068.6946 1068.6514 1068.6662
#> Jun 2000 1255.1445 1255.0491 1254.8615 1255.1911 1255.5206 1255.4218 1255.3469
#> Jul 2000 896.8690 897.0886 897.1459 896.8596 896.7298 896.7881 896.8257
#> Aug 2000 1176.4581 1176.4028 1176.2611 1176.4602 1176.5883 1176.5244 1176.5126
#> Sep 2000 1158.1183 1158.0191 1158.0663 1158.1267 1158.1489 1158.1638 1158.1547
#> Oct 2000 1103.2056 1103.1829 1103.2181 1103.2078 1103.1838 1103.1963 1103.1928
#> Nov 2000 1092.9756 1093.1352 1093.0973 1092.9695 1093.0479 1093.0276 1093.0269
#> Dec 2000 1154.0179 1154.0000 1154.2113 1154.0287 1153.9212 1154.0036 1153.9970
#> Jan 2001 1113.3396 1113.2964 1113.2206 1113.3308 1113.3509 1113.3174 1113.3209
#> Feb 2001 1140.2491 1140.2009 1140.2012 1140.2424 1140.1905 1140.1905 1140.1962
#> Mar 2001 1213.9375 1213.8783 1213.9021 1213.9203 1213.7818 1213.7885 1213.8050
#> Apr 2001 1107.4959 1107.4424 1107.4926 1107.4987 1107.4188 1107.4427 1107.4442
#> May 2001 1146.1738 1146.0960 1145.9951 1146.1584 1146.1385 1146.0984 1146.1136
#> Jun 2001 1101.6818 1101.5754 1101.5513 1101.7237 1101.8530 1101.8286 1101.7712
#> Jul 2001 1145.7084 1146.1758 1146.0922 1145.6873 1145.6505 1145.6629 1145.7286
#> Aug 2001 1120.9328 1120.8358 1120.7055 1120.9354 1121.0266 1120.9681 1120.9581
#> Sep 2001 1125.0231 1124.8739 1125.0483 1125.0397 1125.1150 1125.1758 1125.1610
#> Oct 2001 1155.2892 1155.2088 1155.1035 1155.2826 1155.3431 1155.2978 1155.3006
#> Nov 2001 1189.8754 1190.1932 1190.1846 1189.8711 1190.0091 1189.9973 1189.9925
#> Dec 2001 1211.5837 1211.5431 1211.7546 1211.5947 1211.5085 1211.5901 1211.5789
#> Jan 2002 1172.5179 1172.4726 1172.3915 1172.5071 1172.5473 1172.5121 1172.5073
#> Feb 2002 1174.1353 1174.0914 1174.0857 1174.1282 1174.1047 1174.1020 1174.0953
#> Mar 2002 1187.9359 1187.8876 1188.0400 1187.9558 1187.8825 1187.9496 1187.9222
#> Apr 2002 1194.8871 1194.7951 1194.7277 1194.8545 1194.2982 1194.2718 1194.2822
#> May 2002 1222.3662 1222.2879 1222.1836 1222.3504 1222.3623 1222.3199 1222.3199
#> Jun 2002 1221.5219 1221.1094 1221.2153 1221.5881 1221.5638 1221.6068 1221.6559
#> Jul 2002 1116.4224 1117.0592 1116.8253 1116.3912 1116.5769 1116.5168 1116.5792
#> Aug 2002 1251.7025 1251.6164 1251.6338 1251.7065 1251.7354 1251.7375 1251.7166
#> Sep 2002 1164.5901 1164.4359 1164.4693 1164.5896 1164.9458 1164.9408 1164.9213
#> Oct 2002 1234.2791 1234.1826 1234.0673 1234.2669 1234.3738 1234.3238 1234.3200
#> Nov 2002 1331.3657 1331.8897 1332.0687 1331.3706 1331.4767 1331.5385 1331.5137
#> Dec 2002 1250.7699 1250.6814 1250.7505 1250.7724 1250.7799 1250.8028 1250.7891
#> Jan 2003 1248.7262 1248.6502 1248.5465 1248.7170 1248.7529 1248.7102 1248.6999
#> Feb 2003 1250.7431 1250.6746 1250.6633 1250.7427 1250.6860 1250.6831 1250.6694
#> Mar 2003 1301.1116 1301.0580 1301.2599 1301.1169 1300.8342 1300.9158 1300.9024
#> Apr 2003 1290.8330 1290.7295 1290.6725 1290.8437 1289.8013 1289.7877 1289.7575
#> May 2003 1297.0570 1297.1282 1297.1411 1297.0314 1297.2616 1297.2704 1297.2358
#> Jun 2003 1284.8398 1284.0680 1284.0113 1284.9274 1284.7984 1284.7933 1284.9708
#> Jul 2003 1228.4715 1229.2409 1228.9551 1228.4148 1228.7942 1228.6954 1228.7257
#> Aug 2003 1301.0187 1300.9517 1301.1547 1301.0397 1300.8436 1300.9267 1300.8970
#> Sep 2003 1302.3332 1302.2150 1302.0894 1302.2507 1303.1129 1303.0409 1303.0408
#> Oct 2003 1340.9999 1340.9100 1340.7733 1340.9924 1341.1323 1341.0712 1341.0638
#> Nov 2003 1375.4558 1376.0362 1376.4073 1375.4806 1375.5834 1375.7177 1375.6838
#> Dec 2003 1299.6504 1299.5675 1299.4716 1299.6490 1299.8726 1299.8217 1299.8116
#> Jan 2004 1351.8461 1351.8054 1351.8634 1351.8564 1351.9399 1351.9558 1351.9364
#> Feb 2004 1328.6185 1328.5854 1328.7007 1328.6363 1328.6549 1328.6961 1328.6755
#> Mar 2004 1311.8438 1311.6796 1311.5806 1311.8423 1311.8527 1311.8175 1311.7970
#> Apr 2004 1348.1949 1348.0274 1348.0157 1348.2521 1345.1132 1345.1714 1345.0484
#> May 2004 1374.0348 1374.3153 1374.4561 1373.9894 1374.7229 1374.7779 1374.7195
#> Jun 2004 1398.6244 1397.4567 1397.2079 1398.7332 1398.7584 1398.6841 1399.0234
#> Jul 2004 1365.6981 1366.6098 1366.4333 1365.6134 1366.3374 1366.2516 1366.2534
#> Aug 2004 1360.1356 1360.0816 1360.1483 1360.1422 1360.1056 1360.1296 1360.1183
#> Sep 2004 1432.3997 1432.3893 1432.2436 1432.2213 1433.5268 1433.4479 1433.4832
#> Oct 2004 1414.5974 1414.5557 1414.7620 1414.6135 1414.5956 1414.6716 1414.6527
#> Nov 2004 1357.5092 1358.0405 1358.0726 1357.5149 1357.8646 1357.8560 1357.8284
#> Dec 2004 1353.7842 1353.7030 1353.5864 1353.7893 1354.0853 1354.0234 1354.0031
#> Jan 2005 1432.3052 1432.2752 1432.5150 1432.3502 1432.4251 1432.5125 1432.4678
#> Feb 2005 1426.2164 1426.1753 1426.1847 1426.2612 1426.4725 1426.4655 1426.4296
#> Mar 2005 1433.3673 1433.0665 1432.9779 1433.4402 1433.6325 1433.6228 1433.5361
#> Apr 2005 1289.3273 1289.1673 1289.3796 1289.4312 1284.6843 1284.8655 1284.6730
#> May 2005 1358.5307 1358.9778 1358.9157 1358.4704 1359.8381 1359.7986 1359.7183
#> Jun 2005 1451.3026 1450.1213 1449.9437 1451.4391 1451.4023 1451.3520 1451.8929
#> Jul 2005 1348.1105 1348.8424 1348.6877 1347.7919 1348.7238 1348.6046 1348.5886
#> Aug 2005 1395.7321 1395.6864 1395.6227 1395.7717 1395.8676 1395.8259 1395.8294
#> Sep 2005 1390.3502 1390.4514 1390.3133 1390.1401 1391.7195 1391.6465 1391.7287
#> Oct 2005 1379.2743 1379.2583 1379.4862 1379.3418 1379.3608 1379.4453 1379.4486
#> Nov 2005 1369.9999 1370.3571 1370.3881 1370.0401 1370.3480 1370.3535 1370.3570
#> Dec 2005 1392.7553 1392.7239 1392.7512 1392.7743 1393.0026 1393.0244 1393.0049
#> Jan 2006 1348.1592 1348.1536 1348.1936 1348.1729 1348.4676 1348.5016 1348.4404
#> Feb 2006 1422.7551 1422.7744 1422.8084 1422.8666 1423.1831 1423.0865 1422.7599
#> Mar 2006 1388.0628 1387.7264 1387.6327 1388.0442 1388.1766 1388.1910 1388.0801
#> Apr 2006 1448.0554 1447.8164 1448.1906 1448.1754 1441.2824 1441.6272 1441.2401
#> May 2006 1355.6844 1356.3736 1356.2887 1355.9702 1359.2375 1359.0595 1358.7739
#> Jun 2006 1422.5194 1421.3841 1421.3429 1422.6178 1421.4314 1421.4887 1422.7336
#> Jul 2006 1460.7488 1461.2963 1460.9354 1460.0409 1461.2431 1460.9946 1460.9606
#> Aug 2006 1429.0337 1429.0417 1428.9448 1428.9972 1429.2593 1429.1743 1429.1420
#> Sep 2006 1346.4706 1346.6521 1346.6646 1346.2354 1347.6199 1347.5982 1347.6465
#> Oct 2006 1405.5366 1405.5320 1405.5940 1405.5841 1405.7676 1405.7793 1405.7532
#> Nov 2006 1450.0105 1450.1809 1450.1883 1450.0803 1450.3326 1450.3461 1450.3185
#> Dec 2006 1449.3646 1449.3443 1449.5792 1449.4634 1449.5668 1449.7034 1449.6442
#> Jan 2007 1402.7421 1402.6953 1402.6053 1402.8532 1403.2608 1403.2845 1403.3274
#> Feb 2007 1437.9571 1437.9607 1438.0980 1438.2970 1438.5628 1438.4222 1437.7903
#> Mar 2007 1539.4790 1539.1272 1539.2571 1539.6262 1539.6663 1539.8295 1539.6380
#> Apr 2007 1393.6879 1393.5208 1393.6633 1393.8424 1387.8321 1388.1425 1387.7140
#> May 2007 1460.8128 1461.8003 1461.7361 1461.3898 1466.6293 1466.4298 1465.8460
#> Jun 2007 1503.5659 1502.7653 1502.9471 1503.3427 1500.2621 1500.6005 1502.4766
#> Jul 2007 1479.5961 1479.9467 1478.9890 1478.1745 1478.9235 1478.4558 1478.3382
#> Aug 2007 1520.1668 1520.2339 1519.7670 1519.5683 1519.2251 1518.9306 1518.8490
#> Sep 2007 1520.7034 1520.2717 1520.1005 1519.0651 1519.5952 1519.4545 1519.5338
#> Oct 2007 1497.6686 1497.7846 1499.5930 1499.3537 1498.8871 1498.5891 1498.6210
#> Nov 2007 1511.9922 1512.0295 1511.4346 1514.1275 1513.5594 1513.2853 1513.3674
#> Dec 2007 1525.2746 1525.2088 1525.2274 1524.4381 1527.6399 1527.4926 1527.5927
#> Jan 2008 1527.6677 1527.6429 1527.7452 1527.6924 1526.9965 1529.4101 1529.8230
#> Feb 2008 1516.2578 1516.2942 1516.4498 1516.9879 1516.6934 1515.9135 1513.4957
#> Mar 2008 1507.0001 1506.6848 1506.9522 1507.1597 1507.3400 1507.3509 1507.4522
#> Apr 2008 1550.7322 1550.5722 1550.5423 1550.8024 1544.4336 1544.9028 1544.5798
#> May 2008 1529.7278 1530.9184 1531.1767 1530.7544 1537.1058 1536.8979 1535.9268
#> Jun 2008 1421.5888 1421.2968 1421.4672 1421.1219 1416.5582 1416.9393 1419.1326
#> Jul 2008 1574.1206 1574.5658 1573.0651 1572.1162 1571.9501 1571.3399 1571.2553
#> Aug 2008 1497.6466 1497.9658 1497.4113 1496.4480 1495.0639 1494.7405 1494.6293
#> Sep 2008 1532.4397 1531.1157 1530.0380 1528.9502 1528.1527 1527.5926 1527.6716
#> Oct 2008 1509.1232 1509.3183 1513.2193 1512.3875 1510.6918 1510.0249 1510.0937
#> Nov 2008 1531.6253 1531.6754 1530.7368 1536.6437 1534.5258 1533.9353 1534.0686
#> Dec 2008 1574.5766 1574.3086 1573.6661 1572.4447 1581.0260 1580.1919 1580.4292
#> Jan 2009 1579.9867 1579.9298 1580.5292 1579.9330 1577.3816 1582.7039 1583.4881
#> Feb 2009 1468.9007 1468.9236 1469.2325 1470.0411 1468.7152 1467.4557 1463.4328
#> Mar 2009 1610.1942 1609.9646 1610.1291 1610.3759 1610.3899 1610.1128 1610.7348
#> Apr 2009 1599.0066 1598.9413 1598.9545 1599.1006 1594.6080 1595.3931 1595.3063
#> May 2009 1643.3762 1644.6188 1645.1243 1644.6192 1650.4031 1650.3160 1649.0147
#> Jun 2009 1514.7789 1514.9706 1514.9083 1513.9892 1507.9848 1508.3553 1510.7426
#> Jul 2009 1552.4114 1552.9556 1551.1549 1549.9051 1548.3020 1547.7155 1547.6667
#> Aug 2009 1590.2319 1590.8368 1589.7103 1588.2411 1585.4929 1585.0016 1584.8703
#> Sep 2009 1554.7476 1552.7718 1551.1158 1549.4127 1546.7429 1545.9408 1546.0357
#> Oct 2009 1607.5003 1607.8171 1614.6592 1612.8059 1609.2060 1608.1643 1608.3298
#> Nov 2009 1573.4869 1573.4779 1571.4538 1582.2495 1578.5094 1577.2700 1577.5616
#> Dec 2009 1529.6232 1529.1710 1528.2455 1526.0164 1540.5975 1539.1991 1539.6256
#> Jan 2010 1597.3620 1597.2741 1598.3634 1597.0354 1592.2768 1600.4283 1601.5457
#> Feb 2010 1552.8934 1552.9113 1553.2875 1554.4431 1551.7056 1549.6872 1543.2913
#> Mar 2010 1535.0570 1534.9018 1534.8388 1535.0426 1535.0465 1534.4792 1535.6230
#> Apr 2010 1522.5288 1522.5150 1522.7075 1522.4914 1519.1592 1520.2556 1520.5287
#> May 2010 1536.7251 1537.8848 1538.7247 1538.4366 1543.2348 1543.1843 1541.6955
#> Jun 2010 1573.5780 1573.9178 1574.0537 1572.9911 1565.1467 1565.5544 1568.2652
#> Jul 2010 1576.6326 1577.3031 1575.8208 1574.2130 1571.0694 1570.7433 1570.7654
#> Aug 2010 1555.8897 1556.7346 1555.3023 1553.7774 1550.1125 1549.6448 1549.4884
#> Sep 2010 NaN 1578.1422 1576.3089 1574.1942 1569.8179 1568.9911 1569.0004
#> Oct 2010 NaN NaN 1552.9856 1550.5829 1545.6892 1544.6107 1544.7426
#> Nov 2010 NaN NaN NaN 1541.8513 1536.9792 1535.4308 1535.7104
#> Dec 2010 NaN NaN NaN NaN 1524.9866 1523.3029 1523.7329
#> Jan 2011 NaN NaN NaN NaN NaN 1528.7333 1529.9507
#> Feb 2011 NaN NaN NaN NaN NaN NaN 1552.2848
#> Mar 2011 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2011 NaN NaN NaN NaN NaN NaN NaN
#> May 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2011 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2011 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2011 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 15 Series 16 Series 17 Series 18 Series 19 Series 20 Series 21
#> Apr 1982 489.7528 489.7577 489.7884 489.8090 489.7963 489.8150 489.8165
#> May 1982 478.3266 478.3551 478.3477 478.3521 478.3607 478.3434 478.3379
#> Jun 1982 486.4709 486.4492 486.4888 486.5009 486.4760 486.5198 486.5296
#> Jul 1982 485.0699 485.0311 485.0441 485.0494 485.0421 485.0546 485.0570
#> Aug 1982 491.3751 491.3130 491.2858 491.2813 491.3007 491.2652 491.2565
#> Sep 1982 496.7993 496.6226 496.6757 496.6873 496.6512 496.7163 496.7318
#> Oct 1982 481.4048 481.3357 481.2895 481.2794 481.3108 481.2543 481.2408
#> Nov 1982 485.7836 485.7503 485.7605 485.7628 485.7558 485.7683 485.7713
#> Dec 1982 487.9278 487.9235 487.9808 487.9936 487.9547 488.0247 488.0413
#> Jan 1983 446.0127 446.0222 445.9245 445.9004 445.9653 445.8492 445.8221
#> Feb 1983 504.3816 504.3413 504.3387 504.3381 504.3399 504.3366 504.3359
#> Mar 1983 513.0361 513.2625 513.2996 513.3253 513.3099 513.3325 513.3341
#> Apr 1983 560.9493 561.1685 561.0816 561.0311 561.0716 561.0080 560.9997
#> May 1983 481.2128 481.2714 481.3155 481.3314 481.3053 481.3505 481.3599
#> Jun 1983 506.9409 506.9371 506.9832 506.9966 506.9673 507.0191 507.0307
#> Jul 1983 499.7966 499.7187 499.6687 499.6595 499.6944 499.6310 499.6155
#> Aug 1983 509.9204 509.8979 509.9371 509.9476 509.9221 509.9675 509.9779
#> Sep 1983 515.9652 515.7468 515.8040 515.8160 515.7768 515.8476 515.8646
#> Oct 1983 515.6766 515.6028 515.5473 515.5349 515.5724 515.5048 515.4888
#> Nov 1983 528.6966 528.7199 528.7244 528.7235 528.7193 528.7274 528.7298
#> Dec 1983 531.3390 531.2985 531.2981 531.2976 531.2976 531.2977 531.2978
#> Jan 1984 482.3406 482.3746 482.3290 482.3166 482.3461 482.2936 482.2817
#> Feb 1984 534.2463 534.2138 534.2304 534.2338 534.2224 534.2430 534.2480
#> Mar 1984 555.0788 555.5265 555.4548 555.4137 555.4472 555.3946 555.3877
#> Apr 1984 522.2794 522.1937 522.1693 522.1828 522.2104 522.1551 522.1378
#> May 1984 559.2808 559.3819 559.4920 559.5234 559.4529 559.5777 559.6059
#> Jun 1984 553.2811 553.2580 553.2485 553.2490 553.2569 553.2418 553.2376
#> Jul 1984 574.9317 574.9040 574.9041 574.9052 574.9059 574.9043 574.9037
#> Aug 1984 564.2412 564.2258 564.2815 564.2952 564.2584 564.3243 564.3396
#> Sep 1984 571.5077 571.1458 571.0794 571.0626 571.1063 571.0283 571.0102
#> Oct 1984 577.9930 577.9839 578.0415 578.0543 578.0154 578.0854 578.1020
#> Nov 1984 578.6538 578.7689 578.7659 578.7603 578.7595 578.7625 578.7643
#> Dec 1984 572.4570 572.3744 572.3056 572.2893 572.3353 572.2527 572.2333
#> Jan 1985 594.0397 594.1061 594.1321 594.1353 594.1162 594.1514 594.1603
#> Feb 1985 610.7281 610.6826 610.6826 610.6817 610.6812 610.6824 610.6829
#> Mar 1985 605.9263 606.2377 606.1236 606.0941 606.1684 606.0360 606.0055
#> Apr 1985 629.5863 629.5755 629.6066 629.6229 629.6073 629.6326 629.6366
#> May 1985 660.5778 660.6665 660.7821 660.8144 660.7399 660.8719 660.9019
#> Jun 1985 624.6655 624.6068 624.5245 624.5079 624.5647 624.4619 624.4370
#> Jul 1985 632.9014 632.9346 633.0044 633.0197 632.9724 633.0576 633.0779
#> Aug 1985 666.9972 666.9360 666.9396 666.9407 666.9384 666.9423 666.9432
#> Sep 1985 609.8229 609.4975 609.4935 609.4902 609.4915 609.4898 609.4900
#> Oct 1985 660.2346 660.2216 660.2794 660.2921 660.2528 660.3235 660.3404
#> Nov 1985 652.0312 652.2169 652.1265 652.0976 652.1537 652.0553 652.0338
#> Dec 1985 636.9617 636.9149 636.9060 636.9035 636.9092 636.8990 636.8967
#> Jan 1986 658.5933 658.6442 658.6927 658.7015 658.6674 658.7294 658.7446
#> Feb 1986 652.4098 652.3729 652.3738 652.3729 652.3716 652.3742 652.3751
#> Mar 1986 612.9347 612.8540 612.8149 612.8572 612.9134 612.7971 612.7584
#> Apr 1986 657.3691 657.6368 657.6180 657.5715 657.5595 657.5939 657.6113
#> May 1986 726.6130 726.6210 726.6499 726.6617 726.6454 726.6731 726.6785
#> Jun 1986 604.0791 604.0761 604.0565 604.0532 604.0672 604.0417 604.0354
#> Jul 1986 702.4013 702.4918 702.5708 702.5871 702.5328 702.6308 702.6544
#> Aug 1986 677.5083 677.4195 677.3471 677.3304 677.3791 677.2915 677.2709
#> Sep 1986 710.9720 710.6545 710.7226 710.7348 710.6868 710.7740 710.7954
#> Oct 1986 689.6036 689.6036 689.6621 689.6746 689.6346 689.7067 689.7240
#> Nov 1986 657.0836 657.2649 657.0980 657.0509 657.1581 656.9681 656.9252
#> Dec 1986 713.6906 713.6952 713.7665 713.7822 713.7338 713.8209 713.8416
#> Jan 1987 720.7528 720.7437 720.7321 720.7270 720.7335 720.7226 720.7205
#> Feb 1987 708.5948 708.5714 708.5741 708.5727 708.5697 708.5757 708.5776
#> Mar 1987 702.2954 702.6454 702.5860 702.5497 702.5761 702.5355 702.5310
#> Apr 1987 707.7086 707.4781 707.5837 707.6495 707.6028 707.6742 707.6819
#> May 1987 711.0791 711.0229 710.9501 710.9363 710.9871 710.8950 710.8725
#> Jun 1987 714.6313 714.6465 714.6678 714.6747 714.6615 714.6846 714.6897
#> Jul 1987 772.6408 772.7572 772.8544 772.8733 772.8059 772.9281 772.9577
#> Aug 1987 705.2633 705.1659 705.0983 705.0829 705.1286 705.0464 705.0269
#> Sep 1987 720.8860 720.6743 720.7363 720.7473 720.7037 720.7831 720.8025
#> Oct 1987 744.7287 744.6879 744.6713 744.6667 744.6774 744.6584 744.6541
#> Nov 1987 683.9031 684.1396 684.0388 684.0066 684.0691 683.9596 683.9357
#> Dec 1987 750.4500 750.4627 750.5448 750.5637 750.5085 750.6076 750.6310
#> Jan 1988 755.1494 755.0769 754.9889 754.9675 755.0261 754.9212 754.8967
#> Feb 1988 737.8781 737.8834 737.9175 737.9234 737.8993 737.9432 737.9539
#> Mar 1988 757.3743 757.3381 757.4496 757.5084 757.4528 757.5427 757.5567
#> Apr 1988 788.1451 788.2085 788.1799 788.1547 788.1629 788.1538 788.1557
#> May 1988 744.8860 744.8964 744.8970 744.8978 744.8978 744.8976 744.8974
#> Jun 1988 758.3007 758.2436 758.1828 758.1722 758.2152 758.1370 758.1177
#> Jul 1988 756.5922 756.6371 756.5833 756.5683 756.6030 756.5414 756.5274
#> Aug 1988 748.3638 748.3494 748.4411 748.4641 748.4037 748.5117 748.5368
#> Sep 1988 776.8304 776.7264 776.7845 776.7946 776.7534 776.8284 776.8468
#> Oct 1988 774.0073 773.9231 773.8264 773.8034 773.8680 773.7521 773.7249
#> Nov 1988 785.0844 785.3347 785.3280 785.3185 785.3182 785.3211 785.3236
#> Dec 1988 809.8492 809.8196 809.8317 809.8351 809.8274 809.8411 809.8441
#> Jan 1989 753.6513 753.6331 753.6301 753.6286 753.6300 753.6277 753.6273
#> Feb 1989 768.3205 768.3212 768.3415 768.3449 768.3304 768.3569 768.3634
#> Mar 1989 793.0006 792.8158 792.9616 793.0451 792.9761 793.0850 793.0997
#> Apr 1989 787.5432 787.7045 787.5692 787.4960 787.5623 787.4559 787.4400
#> May 1989 769.5646 769.6362 769.7165 769.7337 769.6788 769.7778 769.8015
#> Jun 1989 817.1316 816.9865 816.8420 816.8143 816.9149 816.7324 816.6880
#> Jul 1989 799.2876 799.3190 799.2781 799.2671 799.2936 799.2464 799.2357
#> Aug 1989 832.9704 832.9324 833.0295 833.0569 832.9948 833.1048 833.1298
#> Sep 1989 823.0382 823.0074 822.9743 822.9638 822.9842 822.9485 822.9407
#> Oct 1989 784.4370 784.4212 784.4170 784.4146 784.4166 784.4135 784.4131
#> Nov 1989 827.3094 827.4727 827.4914 827.4904 827.4746 827.5046 827.5128
#> Dec 1989 819.6217 819.5571 819.4894 819.4748 819.5209 819.4378 819.4179
#> Jan 1990 803.8757 803.9203 804.0035 804.0217 803.9651 804.0670 804.0913
#> Feb 1990 812.8746 812.8905 812.9197 812.9257 812.9055 812.9420 812.9508
#> Mar 1990 854.1354 854.4226 854.3685 854.3058 854.3125 854.3156 854.3274
#> Apr 1990 793.3792 793.1141 793.1712 793.2300 793.2183 793.2255 793.2172
#> May 1990 819.9087 819.9691 820.0578 820.0768 820.0161 820.1255 820.1517
#> Jun 1990 866.8570 866.6079 866.3056 866.2427 866.4503 866.0751 865.9848
#> Jul 1990 791.8050 791.8785 791.9302 791.9422 791.9075 791.9699 791.9847
#> Aug 1990 873.9395 873.9092 874.0035 874.0329 873.9743 874.0773 874.1001
#> Sep 1990 814.0898 814.0300 813.9032 813.8712 813.9547 813.8057 813.7712
#> Oct 1990 803.3302 803.3952 803.4863 803.5052 803.4425 803.5557 803.5829
#> Nov 1990 832.3598 832.4350 832.4846 832.4935 832.4586 832.5221 832.5376
#> Dec 1990 824.3775 824.3344 824.2676 824.2521 824.2970 824.2164 824.1973
#> Jan 1991 820.8911 820.9502 821.0333 821.0508 820.9939 821.0966 821.1213
#> Feb 1991 832.7490 832.7817 832.8169 832.8234 832.7988 832.8435 832.8544
#> Mar 1991 815.1402 814.7914 814.7680 814.8151 814.8617 814.7622 814.7271
#> Apr 1991 831.8105 832.1845 832.2001 832.1474 832.1038 832.1991 832.2340
#> May 1991 826.8004 826.8772 826.9795 827.0011 826.9310 827.0575 827.0878
#> Jun 1991 781.5454 781.2739 780.9158 780.8395 781.0842 780.6426 780.5367
#> Jul 1991 881.4163 881.4790 881.5933 881.6226 881.5474 881.6817 881.7131
#> Aug 1991 899.5839 899.5055 899.5149 899.5251 899.5240 899.5237 899.5221
#> Sep 1991 804.7942 804.7974 804.7623 804.7509 804.7724 804.7349 804.7268
#> Oct 1991 865.2952 865.3810 865.4909 865.5136 865.4381 865.5745 865.6073
#> Nov 1991 857.0642 857.0590 857.0220 857.0118 857.0357 856.9933 856.9837
#> Dec 1991 842.3192 842.3408 842.3601 842.3634 842.3497 842.3747 842.3808
#> Jan 1992 871.3977 871.4666 871.5657 871.5883 871.5214 871.6417 871.6702
#> Feb 1992 887.3959 887.3890 887.3547 887.3454 887.3676 887.3281 887.3190
#> Mar 1992 831.1609 831.3747 831.3288 831.2814 831.2906 831.2851 831.2919
#> Apr 1992 877.9573 877.8036 877.9278 877.9920 877.9293 878.0312 878.0474
#> May 1992 890.0401 890.0045 889.9240 889.9043 889.9577 889.8621 889.8397
#> Jun 1992 846.6425 846.4957 846.3246 846.2890 846.4067 846.1938 846.1424
#> Jul 1992 872.7267 872.7463 872.8273 872.8521 872.8012 872.8910 872.9113
#> Aug 1992 856.4300 856.3236 856.2517 856.2404 856.2923 856.1978 856.1748
#> Sep 1992 881.4985 881.5512 881.6019 881.6098 881.5734 881.6400 881.6566
#> Oct 1992 910.1273 910.1595 910.1866 910.1908 910.1713 910.2069 910.2156
#> Nov 1992 885.9902 885.9817 885.9449 885.9350 885.9588 885.9164 885.9066
#> Dec 1992 863.8419 863.9176 864.0225 864.0448 863.9731 864.1024 864.1333
#> Jan 1993 911.1133 911.0546 910.9554 910.9351 911.0032 910.8802 910.8505
#> Feb 1993 878.2164 878.2465 878.2764 878.2820 878.2610 878.2990 878.3082
#> Mar 1993 887.1891 887.4309 887.4788 887.4574 887.4060 887.5080 887.5392
#> Apr 1993 884.1541 884.0345 884.1460 884.2009 884.1431 884.2382 884.2541
#> May 1993 916.9909 916.9535 916.8719 916.8523 916.9066 916.8092 916.7863
#> Jun 1993 912.4586 912.3795 912.2825 912.2618 912.3283 912.2081 912.1791
#> Jul 1993 858.9547 858.8725 858.8131 858.8082 858.8534 858.7700 858.7488
#> Aug 1993 856.1656 856.1418 856.1814 856.1888 856.1616 856.2114 856.2242
#> Sep 1993 908.7323 908.7658 908.7894 908.7940 908.7771 908.8076 908.8149
#> Oct 1993 900.7475 900.7176 900.6527 900.6369 900.6801 900.6027 900.5845
#> Nov 1993 883.0848 883.1297 883.1919 883.2052 883.1627 883.2393 883.2575
#> Dec 1993 893.7091 893.7757 893.8747 893.8964 893.8290 893.9503 893.9790
#> Jan 1994 889.2651 889.1955 889.0979 889.0803 889.1488 889.0242 888.9935
#> Feb 1994 907.7540 907.7695 907.7864 907.7899 907.7782 907.7990 907.8038
#> Mar 1994 932.0629 931.8502 931.9884 932.0663 932.0005 932.1047 932.1189
#> Apr 1994 917.4856 917.7851 917.6966 917.6234 917.6518 917.6164 917.6192
#> May 1994 911.2857 911.2960 911.3037 911.3053 911.3000 911.3095 911.3116
#> Jun 1994 943.4812 943.4731 943.4690 943.4690 943.4733 943.4670 943.4672
#> Jul 1994 871.2903 871.1352 870.9633 870.9331 871.0544 870.8340 870.7802
#> Aug 1994 927.6607 927.7156 927.8748 927.9029 927.7911 927.9951 928.0459
#> Sep 1994 954.2819 954.2929 954.2900 954.2918 954.2945 954.2885 954.2861
#> Oct 1994 955.2086 955.1648 955.0888 955.0715 955.1226 955.0304 955.0083
#> Nov 1994 910.1794 910.2182 910.2832 910.2980 910.2541 910.3327 910.3509
#> Dec 1994 956.8087 956.8016 956.7922 956.7901 956.7963 956.7846 956.7811
#> Jan 1995 887.1878 887.1916 887.1788 887.1812 887.1931 887.1701 887.1634
#> Feb 1995 933.8867 933.8759 933.8790 933.8803 933.8785 933.8810 933.8808
#> Mar 1995 954.8495 955.1045 955.1493 955.1228 955.0709 955.1747 955.2067
#> Apr 1995 975.4134 975.1919 975.0803 975.0798 975.1696 974.9999 974.9534
#> May 1995 926.0664 926.1140 926.2121 926.2350 926.1693 926.2870 926.3145
#> Jun 1995 944.1707 944.2071 944.2874 944.3096 944.2603 944.3541 944.3826
#> Jul 1995 966.4824 966.4205 966.2305 966.1930 966.3226 966.0864 966.0276
#> Aug 1995 1011.0085 1011.0450 1011.2275 1011.2566 1011.1269 1011.3644 1011.4239
#> Sep 1995 931.5980 931.5120 931.3839 931.3606 931.4495 931.2873 931.2470
#> Oct 1995 938.4488 938.4369 938.4497 938.4535 938.4452 938.4593 938.4619
#> Nov 1995 966.9821 967.0076 967.0861 967.1049 967.0522 967.1459 967.1670
#> Dec 1995 985.4763 985.3781 985.2527 985.2251 985.3098 985.1560 985.1180
#> Jan 1996 970.2650 970.3950 970.4643 970.4862 970.4438 970.5187 970.5356
#> Feb 1996 974.5507 974.5309 974.5570 974.5642 974.5470 974.5760 974.5809
#> Mar 1996 964.3956 964.3804 964.2421 964.1960 964.2804 964.1317 964.0981
#> Apr 1996 959.8851 959.9408 960.0086 960.0207 959.9727 960.0582 960.0772
#> May 1996 967.6799 967.7032 967.7992 967.8226 967.7585 967.8723 967.8980
#> Jun 1996 975.8013 975.7008 975.5897 975.5738 975.6600 975.5166 975.4970
#> Jul 1996 957.2633 957.4787 957.5527 957.5690 957.5148 957.6088 957.6273
#> Aug 1996 1034.9192 1034.8648 1034.9389 1034.9445 1034.8885 1034.9929 1035.0205
#> Sep 1996 908.8699 908.7618 908.6316 908.6085 908.6993 908.5335 908.4922
#> Oct 1996 948.2940 948.3145 948.4159 948.4404 948.3728 948.4935 948.5213
#> Nov 1996 982.9083 982.8511 982.8286 982.8250 982.8410 982.8111 982.8028
#> Dec 1996 965.8111 965.7542 965.7289 965.7241 965.7413 965.7083 965.6982
#> Jan 1997 974.6465 974.8489 974.8978 974.9129 974.8833 974.9357 974.9475
#> Feb 1997 1002.3556 1002.2944 1002.2816 1002.2796 1002.2879 1002.2690 1002.2601
#> Mar 1997 986.5079 985.9840 985.9513 986.0152 986.0781 985.9393 985.8859
#> Apr 1997 944.7997 945.3140 945.2664 945.1677 945.1469 945.2057 945.2331
#> May 1997 1014.7260 1014.6719 1014.6571 1014.6542 1014.6632 1014.6419 1014.6313
#> Jun 1997 893.2295 893.1810 893.2168 893.2411 893.2374 893.2678 893.3041
#> Jul 1997 1006.2250 1006.6213 1006.7315 1006.7490 1006.6615 1006.8140 1006.8438
#> Aug 1997 982.9623 982.8060 982.7516 982.7322 982.7667 982.7100 982.7018
#> Sep 1997 1014.9315 1014.8559 1014.8261 1014.8275 1014.8524 1014.8058 1014.7935
#> Oct 1997 995.4152 995.4060 995.5024 995.5264 995.4628 995.5759 995.6014
#> Nov 1997 1015.4154 1015.2648 1015.1301 1015.1013 1015.1932 1015.0256 1014.9834
#> Dec 1997 978.2897 978.2708 978.3471 978.3652 978.3136 978.4028 978.4198
#> Jan 1998 1067.9436 1068.1390 1068.0653 1068.0503 1068.1022 1068.0074 1067.9834
#> Feb 1998 990.1149 990.0413 990.0275 990.0244 990.0323 990.0120 990.0004
#> Mar 1998 987.7514 987.9630 987.8920 987.8315 987.8512 987.8216 987.8159
#> Apr 1998 1028.1047 1027.9866 1028.0708 1028.1103 1028.0627 1028.1332 1028.1354
#> May 1998 1000.0717 999.9460 999.8190 999.7898 999.8728 999.7155 999.6689
#> Jun 1998 913.7219 913.7155 913.8749 913.9347 913.8573 914.0326 914.1182
#> Jul 1998 1067.5133 1068.0202 1068.1581 1068.1791 1068.0676 1068.2623 1068.3008
#> Aug 1998 1028.6435 1028.5117 1028.4361 1028.4184 1028.4719 1028.3825 1028.3692
#> Sep 1998 1015.6318 1015.6086 1015.6122 1015.6207 1015.6235 1015.6182 1015.6175
#> Oct 1998 1052.7533 1052.7137 1052.6908 1052.6879 1052.7053 1052.6726 1052.6634
#> Nov 1998 1024.9017 1024.8637 1024.8316 1024.8251 1024.8472 1024.8044 1024.7908
#> Dec 1998 1027.3975 1027.1665 1027.2364 1027.2509 1027.2030 1027.2844 1027.2977
#> Jan 1999 1103.7018 1103.8873 1103.6931 1103.6471 1103.7784 1103.5402 1103.4810
#> Feb 1999 1025.6473 1025.6109 1025.5949 1025.5898 1025.5979 1025.5756 1025.5615
#> Mar 1999 1041.7781 1041.7082 1041.8322 1041.8872 1041.8162 1041.9252 1041.9335
#> Apr 1999 1040.4311 1040.7398 1040.7407 1040.6901 1040.6554 1040.7216 1040.7357
#> May 1999 1044.4066 1044.2991 1044.1573 1044.1242 1044.2146 1044.0408 1043.9870
#> Jun 1999 965.1957 965.1847 965.3692 965.4411 965.3533 965.5572 965.6622
#> Jul 1999 1087.2021 1087.7401 1087.7577 1087.7532 1087.7186 1087.7731 1087.7767
#> Aug 1999 1057.1495 1057.0963 1057.1083 1057.1173 1057.1162 1057.1270 1057.1406
#> Sep 1999 1085.5431 1085.6189 1085.6686 1085.6852 1085.6590 1085.7087 1085.7232
#> Oct 1999 1086.8266 1086.7411 1086.5931 1086.5613 1086.6630 1086.4786 1086.4334
#> Nov 1999 1075.8127 1075.9260 1075.9918 1076.0061 1075.9615 1076.0380 1076.0510
#> Dec 1999 1073.7325 1073.2719 1073.3542 1073.3686 1073.3116 1073.4086 1073.4240
#> Jan 2000 1082.6509 1082.8303 1082.6357 1082.5862 1082.7173 1082.4792 1082.4192
#> Feb 2000 1072.0794 1072.1062 1072.1258 1072.1237 1072.1078 1072.1290 1072.1251
#> Mar 2000 1068.8495 1069.2958 1069.3250 1069.2763 1069.2238 1069.3233 1069.3464
#> Apr 2000 1104.2743 1103.9884 1103.8439 1103.8398 1103.9524 1103.7295 1103.6575
#> May 2000 1068.6797 1068.7371 1068.8209 1068.8373 1068.7753 1068.8758 1068.8881
#> Jun 2000 1255.4554 1255.4561 1255.6870 1255.7752 1255.6628 1255.9196 1256.0492
#> Jul 2000 896.8149 897.2171 897.1294 897.1425 897.1751 897.1031 897.0774
#> Aug 2000 1176.5581 1176.6268 1176.7635 1176.8030 1176.7206 1176.8785 1176.9289
#> Sep 2000 1158.1369 1158.2549 1158.2210 1158.2123 1158.2445 1158.1923 1158.1845
#> Oct 2000 1103.1752 1103.1977 1103.1643 1103.1539 1103.1790 1103.1341 1103.1229
#> Nov 2000 1093.0249 1093.2835 1093.3211 1093.3041 1093.2859 1093.3236 1093.3270
#> Dec 2000 1153.9291 1153.0437 1152.8800 1152.8311 1152.9413 1152.7391 1152.6837
#> Jan 2001 1113.3400 1113.6194 1113.6787 1113.6806 1113.6409 1113.7099 1113.7222
#> Feb 2001 1140.1845 1140.2476 1140.2386 1140.2246 1140.2288 1140.2147 1140.2033
#> Mar 2001 1213.9700 1214.4200 1214.3322 1214.2545 1214.2793 1214.2385 1214.2289
#> Apr 2001 1107.2790 1107.0932 1107.0726 1107.1023 1107.1304 1107.0577 1107.0230
#> May 2001 1146.1293 1146.2286 1146.3004 1146.3198 1146.2624 1146.3522 1146.3631
#> Jun 2001 1101.8216 1101.7573 1101.8180 1101.8669 1101.8535 1101.9149 1101.9812
#> Jul 2001 1145.7504 1146.3379 1146.3463 1146.4520 1146.3981 1146.4663 1146.4703
#> Aug 2001 1121.0047 1121.0559 1121.1756 1121.2218 1121.1459 1121.2893 1121.3370
#> Sep 2001 1125.1112 1125.2406 1125.1257 1125.0600 1125.1693 1124.9912 1124.9500
#> Oct 2001 1155.3249 1155.4021 1155.4882 1155.5168 1155.4571 1155.5627 1155.5880
#> Nov 2001 1189.9768 1190.3501 1190.3670 1190.3315 1190.3317 1190.3429 1190.3392
#> Dec 2001 1211.5105 1210.5553 1210.3954 1210.3368 1210.4466 1210.2482 1210.1945
#> Jan 2002 1172.5233 1172.6797 1172.7530 1172.7276 1172.6853 1172.7654 1172.7803
#> Feb 2002 1174.0862 1174.1368 1174.1445 1174.0986 1174.1007 1174.0995 1174.0935
#> Mar 2002 1187.5361 1187.1127 1187.0734 1187.1037 1187.1868 1187.0115 1186.9440
#> Apr 2002 1194.6862 1195.3750 1195.3145 1195.1426 1195.1254 1195.1809 1195.2125
#> May 2002 1222.3388 1222.4381 1222.5246 1222.5144 1222.4573 1222.5574 1222.5744
#> Jun 2002 1221.6500 1221.5620 1221.4068 1221.7421 1221.7826 1221.6499 1221.6595
#> Jul 2002 1116.6315 1117.2085 1117.3495 1117.5092 1117.3677 1117.5948 1117.6358
#> Aug 2002 1251.7140 1251.7001 1251.6902 1251.6831 1251.7003 1251.6830 1251.6889
#> Sep 2002 1164.9144 1165.1812 1165.2347 1165.1340 1165.1627 1165.1525 1165.1447
#> Oct 2002 1234.3462 1234.4374 1234.5347 1234.5470 1234.4849 1234.6031 1234.6319
#> Nov 2002 1331.4399 1331.8305 1331.6951 1331.5713 1331.6894 1331.5075 1331.4591
#> Dec 2002 1250.7667 1249.8320 1249.8056 1249.7472 1249.7723 1249.7348 1249.7230
#> Jan 2003 1248.7233 1248.8090 1248.8993 1248.8560 1248.8005 1248.9114 1248.9366
#> Feb 2003 1250.6670 1250.7107 1250.7113 1250.6514 1250.6505 1250.6619 1250.6633
#> Mar 2003 1301.0539 1301.3780 1301.1420 1300.9504 1301.0843 1300.8665 1300.8254
#> Apr 2003 1289.6534 1289.5132 1289.6371 1289.5796 1289.5316 1289.5966 1289.6070
#> May 2003 1297.2014 1297.4701 1297.4155 1297.4409 1297.4682 1297.4186 1297.3952
#> Jun 2003 1285.0038 1285.0047 1284.9014 1285.5894 1285.4996 1285.4884 1285.5157
#> Jul 2003 1228.7760 1229.1064 1229.5090 1229.4304 1229.2663 1229.5330 1229.5830
#> Aug 2003 1300.8401 1300.6384 1300.4797 1300.3848 1300.5118 1300.2968 1300.2520
#> Sep 2003 1303.0690 1303.8018 1303.6351 1303.8121 1303.7894 1303.9472 1303.9579
#> Oct 2003 1341.0962 1341.0938 1341.2490 1341.2438 1341.1656 1341.3240 1341.3637
#> Nov 2003 1375.5516 1375.7276 1375.4838 1375.2960 1375.5244 1375.1579 1375.0701
#> Dec 2003 1299.8352 1299.1477 1299.3196 1299.2731 1299.2001 1299.3517 1299.3904
#> Jan 2004 1351.9095 1351.7941 1351.8058 1351.7118 1351.7475 1351.7071 1351.7010
#> Feb 2004 1328.6338 1328.5034 1328.4563 1328.3630 1328.4319 1328.3283 1328.3052
#> Mar 2004 1312.0696 1312.2825 1312.4220 1311.8673 1311.8101 1311.8886 1311.9652
#> Apr 2004 1344.9850 1345.0988 1344.8963 1344.8514 1344.8217 1344.8533 1344.8393
#> May 2004 1374.6181 1375.0439 1374.8725 1375.0033 1375.1225 1374.9137 1374.8370
#> Jun 2004 1399.0995 1399.1883 1399.1901 1400.3710 1400.1276 1400.2686 1400.3147
#> Jul 2004 1366.2458 1366.1237 1366.7211 1366.3842 1366.2974 1366.4271 1366.4351
#> Aug 2004 1360.0987 1359.8881 1359.8897 1359.8229 1359.8677 1359.8035 1359.7817
#> Sep 2004 1433.4963 1434.5615 1433.9403 1434.4981 1434.5189 1434.6715 1434.6557
#> Oct 2004 1414.5850 1414.2874 1414.1758 1414.0718 1414.2014 1414.0009 1413.9543
#> Nov 2004 1357.8032 1357.9804 1358.0782 1357.9207 1357.9458 1357.9607 1357.9669
#> Dec 2004 1354.0309 1353.5482 1353.7872 1353.6549 1353.5804 1353.7695 1353.8296
#> Jan 2005 1432.3853 1432.0852 1432.0248 1431.7649 1431.9024 1431.7176 1431.7037
#> Feb 2005 1426.4196 1426.2951 1426.4498 1426.2696 1426.2513 1426.3245 1426.3740
#> Mar 2005 1433.2280 1432.2581 1432.7364 1431.7786 1431.6722 1431.7399 1431.8624
#> Apr 2005 1285.1371 1286.2821 1285.5107 1285.2000 1285.2968 1285.1535 1285.1382
#> May 2005 1359.6478 1360.4799 1360.5480 1360.7643 1360.7505 1360.7886 1360.7821
#> Jun 2005 1451.9947 1452.1307 1451.8300 1454.3847 1454.0324 1453.8459 1453.6657
#> Jul 2005 1348.5030 1347.4800 1348.2488 1347.4160 1347.6254 1347.5569 1347.3956
#> Aug 2005 1395.8488 1395.7120 1395.9568 1395.8793 1395.8159 1395.9578 1396.0027
#> Sep 2005 1391.7236 1393.0981 1392.1331 1393.0042 1393.0447 1393.2191 1393.2163
#> Oct 2005 1379.3794 1379.0589 1379.0233 1378.8798 1378.9913 1378.8333 1378.8193
#> Nov 2005 1370.3479 1370.3513 1370.4421 1370.2625 1370.2641 1370.3382 1370.3969
#> Dec 2005 1393.0008 1392.6975 1392.7387 1392.4186 1392.4326 1392.5095 1392.6025
#> Jan 2006 1348.4269 1348.0963 1348.1773 1347.6933 1347.7137 1347.7868 1347.8970
#> Feb 2006 1422.7085 1422.5245 1422.6988 1422.1821 1422.1557 1422.2633 1422.3552
#> Mar 2006 1388.4480 1388.1460 1388.4462 1386.5509 1386.4792 1386.5407 1386.8110
#> Apr 2006 1441.1050 1441.5142 1440.2893 1439.8343 1440.0277 1439.7338 1439.7000
#> May 2006 1358.5399 1359.2123 1361.3230 1361.1539 1360.9759 1361.0228 1360.7516
#> Jun 2006 1422.9862 1424.1673 1422.4397 1428.3437 1427.9021 1427.3366 1426.8415
#> Jul 2006 1460.8513 1459.0693 1459.8917 1458.5014 1458.9571 1458.9118 1458.6711
#> Aug 2006 1429.1420 1428.9930 1429.2548 1428.9045 1428.8416 1429.0787 1429.2169
#> Sep 2006 1347.5676 1348.7018 1347.5730 1348.1815 1348.3187 1348.3718 1348.4154
#> Oct 2006 1405.7179 1405.5076 1405.6082 1405.2174 1405.2332 1405.3241 1405.4383
#> Nov 2006 1450.3251 1450.2312 1450.3252 1449.8950 1449.8758 1450.0520 1450.1988
#> Dec 2006 1449.6062 1449.2357 1449.0826 1448.4641 1448.5842 1448.5238 1448.6386
#> Jan 2007 1403.3453 1403.0389 1403.2423 1402.5396 1402.4489 1402.7604 1403.0297
#> Feb 2007 1437.7333 1437.6501 1437.8065 1437.0147 1436.9812 1437.0973 1437.1958
#> Mar 2007 1540.0011 1539.4349 1539.6006 1537.2077 1537.2276 1537.1489 1537.4500
#> Apr 2007 1387.7124 1388.1559 1386.7976 1386.0660 1386.0600 1385.9326 1386.0112
#> May 2007 1465.4202 1465.9199 1470.2700 1469.6758 1469.4092 1469.2653 1468.6119
#> Jun 2007 1502.8953 1505.0738 1501.6632 1511.0937 1510.6994 1509.4793 1508.5385
#> Jul 2007 1478.3197 1475.9459 1476.9935 1475.1893 1475.7699 1475.9557 1475.6872
#> Aug 2007 1518.8794 1518.6337 1519.0309 1518.4294 1518.3579 1518.7590 1519.0247
#> Sep 2007 1519.3188 1520.3671 1518.9466 1519.4443 1519.7431 1519.6941 1519.8189
#> Oct 2007 1498.5110 1498.4429 1498.7820 1498.2041 1498.1446 1498.5707 1498.8770
#> Nov 2007 1513.2690 1513.3002 1513.3536 1512.7588 1512.7459 1513.1105 1513.4229
#> Dec 2007 1527.4234 1527.2643 1526.8457 1525.9406 1526.1104 1526.1467 1526.4049
#> Jan 2008 1529.6393 1529.4992 1529.4378 1528.3135 1528.1850 1528.6256 1529.1054
#> Feb 2008 1513.2410 1513.5841 1513.4703 1512.2103 1512.0567 1512.1785 1512.3550
#> Mar 2008 1508.7341 1507.5062 1507.2629 1504.6204 1504.6087 1504.2149 1504.3856
#> Apr 2008 1544.9055 1543.9516 1541.5128 1539.9054 1539.5848 1539.3499 1539.3247
#> May 2008 1535.0869 1535.5357 1544.7901 1543.2292 1542.8068 1541.9340 1540.5319
#> Jun 2008 1419.7711 1423.0373 1418.0952 1431.4429 1430.9256 1429.3777 1428.0285
#> Jul 2008 1571.2649 1568.8076 1569.4026 1566.8749 1568.5564 1568.6228 1567.9824
#> Aug 2008 1494.4609 1493.9798 1494.2261 1493.0906 1492.9118 1495.2188 1494.9631
#> Sep 2008 1527.4488 1528.1789 1527.3979 1527.6968 1527.5883 1527.4292 1530.5755
#> Oct 2008 1509.8112 1509.7748 1509.9130 1509.0978 1509.1428 1509.3837 1509.0174
#> Nov 2008 1533.6660 1533.6570 1533.2167 1532.2585 1532.4718 1532.6920 1532.6247
#> Dec 2008 1580.1710 1580.5090 1580.1795 1579.0752 1579.0155 1579.4566 1580.0871
#> Jan 2009 1583.0055 1583.2235 1582.6811 1581.1931 1581.1462 1581.3546 1581.8219
#> Feb 2009 1463.0122 1463.9398 1463.4025 1461.7925 1461.6115 1461.5921 1461.6499
#> Mar 2009 1614.9359 1615.7400 1614.9586 1611.9335 1611.7167 1611.3667 1611.4666
#> Apr 2009 1594.4942 1588.9206 1586.1574 1583.9365 1583.2361 1582.6255 1582.3247
#> May 2009 1647.8660 1648.6688 1662.7335 1660.0496 1659.3984 1657.8303 1655.8710
#> Jun 2009 1511.6802 1515.8773 1509.5549 1528.0661 1527.1856 1525.2362 1523.3172
#> Jul 2009 1547.6357 1545.1189 1545.0075 1541.7647 1544.8636 1544.3529 1543.0504
#> Aug 2009 1584.5799 1584.1504 1584.7434 1583.0765 1582.4261 1587.9543 1586.9480
#> Sep 2009 1545.6723 1546.0394 1545.6275 1545.7925 1545.4703 1544.6277 1551.4772
#> Oct 2009 1607.7735 1607.7629 1607.5634 1606.5816 1606.8599 1606.6615 1605.3040
#> Nov 2009 1576.9902 1577.3286 1576.8439 1575.7538 1575.8282 1576.6247 1576.2465
#> Dec 2009 1539.1383 1539.7631 1539.0147 1537.7614 1537.7119 1538.0916 1539.0560
#> Jan 2010 1600.7832 1601.4303 1600.2553 1598.3991 1598.4113 1598.3777 1598.7977
#> Feb 2010 1542.6197 1544.2906 1543.1345 1540.9403 1540.6503 1540.5341 1540.4719
#> Mar 2010 1541.4205 1542.5306 1541.4121 1538.5798 1538.0868 1537.8134 1537.7588
#> Apr 2010 1519.6987 1511.3295 1508.1305 1504.9551 1504.0097 1503.0735 1502.5352
#> May 2010 1540.3362 1541.4807 1559.9590 1556.2679 1555.2643 1553.2517 1550.8482
#> Jun 2010 1569.4714 1574.7588 1566.5291 1590.9658 1589.7960 1587.4540 1585.0177
#> Jul 2010 1570.5913 1568.0698 1566.8134 1562.5318 1567.6656 1566.2328 1564.1777
#> Aug 2010 1549.1092 1548.8300 1549.7630 1547.5124 1546.2144 1555.0365 1553.1738
#> Sep 2010 1568.4520 1568.4341 1568.2077 1568.1605 1567.5437 1565.8440 1577.2137
#> Oct 2010 1543.9108 1543.7742 1543.0939 1541.8995 1542.3570 1541.6628 1539.2196
#> Nov 2010 1534.9281 1535.3015 1534.8425 1533.5243 1533.4093 1534.7276 1533.8880
#> Dec 2010 1522.9676 1523.6314 1522.7174 1521.4277 1521.3148 1521.5882 1522.8373
#> Jan 2011 1528.9828 1529.8626 1528.5547 1526.8847 1526.9351 1526.8025 1527.0814
#> Feb 2011 1551.4306 1553.4757 1551.9920 1549.7683 1549.6374 1549.4308 1549.1218
#> Mar 2011 1524.6111 1526.9614 1525.4121 1522.8512 1522.5051 1522.0842 1521.9233
#> Apr 2011 NaN 1566.8152 1563.3910 1559.8211 1558.8624 1557.3550 1556.6771
#> May 2011 NaN NaN 1525.0933 1521.2244 1520.0827 1518.0682 1515.7380
#> Jun 2011 NaN NaN NaN 1512.8845 1511.8613 1509.5430 1507.2063
#> Jul 2011 NaN NaN NaN NaN 1530.9841 1528.8416 1526.4605
#> Aug 2011 NaN NaN NaN NaN NaN 1506.2325 1503.9585
#> Sep 2011 NaN NaN NaN NaN NaN NaN 1493.3611
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 22 Series 23 Series 24 Series 25 Series 26 Series 27 Series 28
#> Apr 1982 489.8105 489.8152 489.8224 489.8314 489.8299 489.8631 489.8632
#> May 1982 478.3447 478.3424 478.3347 478.3242 478.3266 478.3223 478.3250
#> Jun 1982 486.5136 486.5214 486.5397 486.5640 486.5590 486.5954 486.5914
#> Jul 1982 485.0526 485.0550 485.0601 485.0669 485.0655 485.0780 485.0770
#> Aug 1982 491.2696 491.2638 491.2488 491.2287 491.2330 491.2092 491.2131
#> Sep 1982 496.7078 496.7189 496.7463 496.7829 496.7752 496.8223 496.8155
#> Oct 1982 481.2616 481.2520 481.2282 481.1964 481.2031 481.1620 481.1679
#> Nov 1982 485.7667 485.7688 485.7741 485.7811 485.7796 485.7886 485.7873
#> Dec 1982 488.0156 488.0275 488.0569 488.0961 488.0879 488.1388 488.1315
#> Jan 1983 445.8646 445.8447 445.7959 445.7311 445.7446 445.6566 445.6683
#> Feb 1983 504.3370 504.3365 504.3351 504.3333 504.3337 504.3312 504.3315
#> Mar 1983 513.3269 513.3326 513.3414 513.3524 513.3506 513.3929 513.3931
#> Apr 1983 561.0210 561.0069 560.9817 560.9495 560.9552 560.8648 560.8667
#> May 1983 481.3437 481.3520 481.3707 481.3953 481.3903 481.4318 481.4280
#> Jun 1983 507.0119 507.0210 507.0427 507.0714 507.0655 507.1077 507.1028
#> Jul 1983 499.6389 499.6284 499.6016 499.5658 499.5733 499.5295 499.5364
#> Aug 1983 509.9613 509.9692 509.9882 510.0135 510.0082 510.0437 510.0392
#> Sep 1983 515.8385 515.8504 515.8803 515.9201 515.9117 515.9623 515.9549
#> Oct 1983 515.5136 515.5022 515.4737 515.4358 515.4437 515.3941 515.4012
#> Nov 1983 528.7267 528.7278 528.7314 528.7362 528.7351 528.7381 528.7370
#> Dec 1983 531.2977 531.2977 531.2978 531.2979 531.2978 531.2971 531.2970
#> Jan 1984 482.3008 482.2917 482.2697 482.2405 482.2465 482.2050 482.2101
#> Feb 1984 534.2404 534.2438 534.2525 534.2641 534.2617 534.2762 534.2740
#> Mar 1984 555.4052 555.3937 555.3730 555.3466 555.3513 555.2787 555.2804
#> Apr 1984 522.1594 522.1521 522.1278 522.0948 522.1023 522.0886 522.0972
#> May 1984 559.5605 559.5824 559.6346 559.7038 559.6895 559.7901 559.7782
#> Jun 1984 553.2434 553.2411 553.2346 553.2258 553.2277 553.2202 553.2221
#> Jul 1984 574.9044 574.9042 574.9035 574.9025 574.9027 574.9030 574.9034
#> Aug 1984 564.3155 564.3268 564.3545 564.3912 564.3836 564.4335 564.4268
#> Sep 1984 571.0387 571.0253 570.9926 570.9491 570.9581 570.8984 570.9061
#> Oct 1984 578.0763 578.0882 578.1177 578.1569 578.1487 578.1997 578.1925
#> Nov 1984 578.7628 578.7628 578.7643 578.7665 578.7659 578.7610 578.7600
#> Dec 1984 572.2636 572.2495 572.2147 572.1685 572.1782 572.1164 572.1248
#> Jan 1985 594.1472 594.1529 594.1678 594.1877 594.1835 594.2054 594.2014
#> Feb 1985 610.6824 610.6825 610.6830 610.6838 610.6836 610.6831 610.6828
#> Mar 1985 606.0538 606.0309 605.9756 605.9021 605.9174 605.8162 605.8292
#> Apr 1985 629.6279 629.6332 629.6434 629.6566 629.6541 629.6858 629.6845
#> May 1985 660.8538 660.8769 660.9321 661.0053 660.9902 661.0955 661.0828
#> Jun 1985 624.4750 624.4577 624.4143 624.3564 624.3686 624.2959 624.3069
#> Jul 1985 633.0465 633.0610 633.0968 633.1445 633.1345 633.1963 633.1874
#> Aug 1985 666.9418 666.9425 666.9441 666.9462 666.9458 666.9489 666.9485
#> Sep 1985 609.4904 609.4899 609.4893 609.4887 609.4887 609.4842 609.4840
#> Oct 1985 660.3143 660.3263 660.3561 660.3957 660.3874 660.4386 660.4313
#> Nov 1985 652.0694 652.0517 652.0107 651.9565 651.9676 651.8834 651.8923
#> Dec 1985 636.9005 636.8987 636.8944 636.8887 636.8899 636.8816 636.8826
#> Jan 1986 658.7216 658.7319 658.7581 658.7931 658.7857 658.8280 658.8213
#> Feb 1986 652.3740 652.3744 652.3755 652.3770 652.3767 652.3769 652.3764
#> Mar 1986 612.8045 612.7903 612.7389 612.6684 612.6848 612.6730 612.6926
#> Apr 1986 657.5958 657.5971 657.6137 657.6376 657.6313 657.5966 657.5867
#> May 1986 726.6687 726.6740 726.6853 726.7002 726.6972 726.7250 726.7229
#> Jun 1986 604.0448 604.0406 604.0298 604.0154 604.0184 604.0013 604.0041
#> Jul 1986 702.6183 702.6348 702.6761 702.7311 702.7195 702.7890 702.7787
#> Aug 1986 677.3030 677.2881 677.2513 677.2022 677.2125 677.1477 677.1567
#> Sep 1986 710.7631 710.7776 710.8145 710.8638 710.8534 710.9129 710.9034
#> Oct 1986 689.6974 689.7096 689.7400 689.7804 689.7719 689.8237 689.8161
#> Nov 1986 656.9943 656.9610 656.8816 656.7762 656.7980 656.6453 656.6636
#> Dec 1986 713.8096 713.8244 713.8610 713.9099 713.8996 713.9628 713.9537
#> Jan 1987 720.7244 720.7222 720.7178 720.7119 720.7131 720.7016 720.7023
#> Feb 1987 708.5753 708.5761 708.5787 708.5824 708.5815 708.5830 708.5821
#> Mar 1987 702.5443 702.5349 702.5191 702.4992 702.5026 702.4411 702.4418
#> Apr 1987 707.6586 707.6752 707.7031 707.7385 707.7324 707.8443 707.8432
#> May 1987 710.9066 710.8912 710.8523 710.8003 710.8113 710.7474 710.7574
#> Jun 1987 714.6813 714.6855 714.6952 714.7080 714.7054 714.7254 714.7232
#> Jul 1987 772.9126 772.9330 772.9846 773.0534 773.0388 773.1239 773.1109
#> Aug 1987 705.0572 705.0432 705.0085 704.9623 704.9720 704.9113 704.9198
#> Sep 1987 720.7732 720.7864 720.8199 720.8648 720.8553 720.9094 720.9007
#> Oct 1987 744.6610 744.6577 744.6498 744.6393 744.6414 744.6263 744.6281
#> Nov 1987 683.9753 683.9557 683.9101 683.8499 683.8622 683.7686 683.7784
#> Dec 1987 750.5946 750.6115 750.6532 750.7087 750.6971 750.7702 750.7601
#> Jan 1988 754.9351 754.9171 754.8731 754.8145 754.8268 754.7479 754.7585
#> Feb 1988 737.9377 737.9449 737.9635 737.9883 737.9831 738.0128 738.0080
#> Mar 1988 757.5259 757.5448 757.5810 757.6279 757.6192 757.7334 757.7291
#> Apr 1988 788.1577 788.1542 788.1513 788.1483 788.1483 788.1151 788.1132
#> May 1988 744.8975 744.8975 744.8974 744.8972 744.8973 744.8982 744.8983
#> Jun 1988 758.1467 758.1337 758.1006 758.0564 758.0658 758.0126 758.0212
#> Jul 1988 756.5499 756.5392 756.5133 756.4790 756.4861 756.4368 756.4428
#> Aug 1988 748.4975 748.5162 748.5612 748.6212 748.6087 748.6903 748.6796
#> Sep 1988 776.8190 776.8315 776.8632 776.9057 776.8967 776.9475 776.9392
#> Oct 1988 773.7674 773.7475 773.6988 773.6340 773.6476 773.5610 773.5728
#> Nov 1988 785.3219 785.3216 785.3233 785.3260 785.3251 785.3160 785.3145
#> Dec 1988 809.8391 809.8415 809.8473 809.8548 809.8533 809.8643 809.8630
#> Jan 1989 753.6281 753.6276 753.6267 753.6255 753.6257 753.6229 753.6230
#> Feb 1989 768.3536 768.3579 768.3692 768.3842 768.3810 768.3990 768.3960
#> Mar 1989 793.0631 793.0870 793.1304 793.1860 793.1759 793.3279 793.3242
#> Apr 1989 787.4761 787.4535 787.4109 787.3561 787.3663 787.2280 787.2326
#> May 1989 769.7649 769.7817 769.8234 769.8791 769.8674 769.9389 769.9285
#> Jun 1989 816.7556 816.7250 816.6478 816.5448 816.5665 816.4391 816.4588
#> Jul 1989 799.2530 799.2448 799.2249 799.1986 799.2041 799.1668 799.1714
#> Aug 1989 833.0902 833.1096 833.1550 833.2156 833.2031 833.2900 833.2796
#> Sep 1989 822.9536 822.9472 822.9323 822.9128 822.9168 822.8866 822.8898
#> Oct 1989 784.4141 784.4134 784.4123 784.4108 784.4111 784.4070 784.4071
#> Nov 1989 827.5014 827.5059 827.5188 827.5363 827.5325 827.5473 827.5434
#> Dec 1989 819.4485 819.4344 819.3994 819.3528 819.3626 819.3026 819.3114
#> Jan 1990 804.0537 804.0710 804.1140 804.1713 804.1593 804.2335 804.2229
#> Feb 1990 812.9372 812.9434 812.9589 812.9796 812.9752 813.0014 812.9975
#> Mar 1990 854.3227 854.3178 854.3218 854.3292 854.3261 854.2570 854.2491
#> Apr 1990 793.2176 793.2237 793.2246 793.2237 793.2254 793.2961 793.3022
#> May 1990 820.1113 820.1298 820.1760 820.2376 820.2247 820.3037 820.2922
#> Jun 1990 866.1233 866.0600 865.9015 865.6901 865.7346 865.4659 865.5057
#> Jul 1990 791.9620 791.9727 791.9988 792.0337 792.0264 792.0725 792.0661
#> Aug 1990 874.0636 874.0821 874.1242 874.1804 874.1689 874.2538 874.2445
#> Sep 1990 813.8256 813.7999 813.7375 813.6547 813.6720 813.5584 813.5733
#> Oct 1990 803.5411 803.5602 803.6080 803.6718 803.6584 803.7393 803.7272
#> Nov 1990 832.5140 832.5246 832.5515 832.5875 832.5799 832.6236 832.6167
#> Dec 1990 824.2268 824.2131 824.1792 824.1342 824.1436 824.0842 824.0924
#> Jan 1991 821.0833 821.1006 821.1441 821.2020 821.1898 821.2637 821.2529
#> Feb 1991 832.8377 832.8451 832.8642 832.8895 832.8842 832.9154 832.9106
#> Mar 1991 814.7671 814.7558 814.7114 814.6500 814.6645 814.6664 814.6845
#> Apr 1991 832.1950 832.2052 832.2483 832.3081 832.2938 832.2843 832.2660
#> May 1991 827.0411 827.0624 827.1159 827.1871 827.1721 827.2632 827.2498
#> Jun 1991 780.6995 780.6248 780.4385 780.1900 780.2423 779.9240 779.9705
#> Jul 1991 881.6644 881.6878 881.7437 881.8185 881.8030 881.9057 881.8923
#> Aug 1991 899.5236 899.5246 899.5232 899.5215 899.5222 899.5312 899.5326
#> Sep 1991 804.7402 804.7334 804.7180 804.6976 804.7018 804.6698 804.6731
#> Oct 1991 865.5568 865.5798 865.6375 865.7143 865.6981 865.7956 865.7811
#> Nov 1991 856.9990 856.9915 856.9740 856.9505 856.9554 856.9222 856.9263
#> Dec 1991 842.3714 842.3755 842.3862 842.4004 842.3974 842.4145 842.4118
#> Jan 1992 871.6259 871.6464 871.6972 871.7650 871.7506 871.8399 871.8273
#> Feb 1992 887.3332 887.3263 887.3100 887.2882 887.2927 887.2621 887.2659
#> Mar 1992 831.2912 831.2863 831.2860 831.2872 831.2857 831.2296 831.2246
#> Apr 1992 878.0122 878.0333 878.0746 878.1279 878.1179 878.2444 878.2392
#> May 1992 889.8745 889.8581 889.8181 889.7648 889.7759 889.7040 889.7137
#> Jun 1992 846.2211 846.1851 846.0950 845.9745 845.9999 845.8468 845.8696
#> Jul 1992 872.8795 872.8957 872.9324 872.9818 872.9717 873.0456 873.0373
#> Aug 1992 856.2109 856.1956 856.1546 856.1006 856.1122 856.0476 856.0581
#> Sep 1992 881.6316 881.6425 881.6710 881.7090 881.7010 881.7457 881.7382
#> Oct 1992 910.2022 910.2079 910.2233 910.2436 910.2393 910.2632 910.2592
#> Nov 1992 885.9218 885.9144 885.8969 885.8734 885.8783 885.8454 885.8495
#> Dec 1992 864.0854 864.1072 864.1620 864.2348 864.2195 864.3129 864.2993
#> Jan 1993 910.8958 910.8751 910.8234 910.7548 910.7689 910.6825 910.6953
#> Feb 1993 878.2939 878.3002 878.3165 878.3381 878.3335 878.3601 878.3560
#> Mar 1993 887.4993 887.5132 887.5580 887.6188 887.6050 887.6344 887.6190
#> Apr 1993 884.2211 884.2404 884.2791 884.3292 884.3196 884.4319 884.4265
#> May 1993 916.8220 916.8052 916.7644 916.7100 916.7214 916.6484 916.6583
#> Jun 1993 912.2236 912.2032 912.1522 912.0841 912.0984 912.0109 912.0237
#> Jul 1993 858.7812 858.7682 858.7316 858.6836 858.6940 858.6430 858.6530
#> Aug 1993 856.2072 856.2160 856.2356 856.2624 856.2575 856.2883 856.2828
#> Sep 1993 908.8026 908.8073 908.8212 908.8394 908.8353 908.8587 908.8556
#> Oct 1993 900.6127 900.5993 900.5670 900.5239 900.5329 900.4749 900.4827
#> Nov 1993 883.2291 883.2420 883.2745 883.3175 883.3085 883.3639 883.3558
#> Dec 1993 893.9340 893.9545 894.0059 894.0740 894.0597 894.1483 894.1356
#> Jan 1994 889.0394 889.0187 888.9663 888.8967 888.9110 888.8274 888.8407
#> Feb 1994 907.7956 907.7990 907.8082 907.8200 907.8175 907.8332 907.8310
#> Mar 1994 932.0833 932.1059 932.1478 932.2012 932.1914 932.3351 932.3313
#> Apr 1994 917.6279 917.6159 917.6044 917.5907 917.5917 917.4917 917.4874
#> May 1994 911.3078 911.3092 911.3136 911.3190 911.3179 911.3252 911.3242
#> Jun 1994 943.4736 943.4739 943.4672 943.4629 943.4636 943.4537 943.4545
#> Jul 1994 870.8625 870.8261 870.7322 870.6075 870.6340 870.4834 870.5076
#> Aug 1994 927.9719 928.0063 928.0911 928.2041 928.1817 928.3156 928.2931
#> Sep 1994 954.2860 954.2844 954.2842 954.2823 954.2825 954.2860 954.2875
#> Oct 1994 955.0414 955.0255 954.9874 954.9358 954.9468 954.8799 954.8895
#> Nov 1994 910.3213 910.3344 910.3682 910.4123 910.4031 910.4621 910.4541
#> Dec 1994 956.7843 956.7819 956.7781 956.7715 956.7730 956.7661 956.7674
#> Jan 1995 887.1729 887.1699 887.1593 887.1475 887.1486 887.1405 887.1433
#> Feb 1995 933.8792 933.8794 933.8811 933.8821 933.8820 933.8858 933.8856
#> Mar 1995 955.1655 955.1791 955.2251 955.2870 955.2729 955.2978 955.2815
#> Apr 1995 975.0163 974.9898 974.9182 974.8204 974.8415 974.7542 974.7753
#> May 1995 926.2711 926.2912 926.3409 926.4065 926.3928 926.4805 926.4683
#> Jun 1995 944.3622 944.3832 944.4091 944.4605 944.4490 944.5023 944.4924
#> Jul 1995 966.1071 966.0648 965.9725 965.8426 965.8702 965.7161 965.7430
#> Aug 1995 1011.3378 1011.3777 1011.4763 1011.6066 1011.5815 1011.7320 1011.7052
#> Sep 1995 931.3038 931.2757 931.2103 931.1206 931.1393 931.0336 931.0518
#> Oct 1995 938.4560 938.4583 938.4649 938.4721 938.4710 938.4832 938.4819
#> Nov 1995 967.1315 967.1472 967.1876 967.2393 967.2290 967.3004 967.2908
#> Dec 1995 985.1724 985.1457 985.0830 984.9961 985.0148 984.9058 984.9218
#> Jan 1996 970.5114 970.5259 970.5544 970.6002 970.5862 970.6518 970.6442
#> Feb 1996 974.5681 974.5724 974.5867 974.6019 974.5993 974.6254 974.6225
#> Mar 1996 964.1498 964.1223 964.0623 963.9797 963.9970 963.8696 963.8827
#> Apr 1996 960.0428 960.0562 960.0950 960.1431 960.1329 960.1958 960.1863
#> May 1996 967.8551 967.8743 967.9232 967.9861 967.9733 968.0606 968.0489
#> Jun 1996 975.5819 975.5690 975.4777 975.3947 975.4105 975.2698 975.2843
#> Jul 1996 957.5762 957.5862 957.6419 957.7009 957.6890 957.7822 957.7756
#> Aug 1996 1034.9834 1035.0008 1035.0433 1035.0986 1035.0894 1035.1434 1035.1304
#> Sep 1996 908.5507 908.5222 908.4549 908.3628 908.3821 908.2742 908.2929
#> Oct 1996 948.4765 948.4971 948.5483 948.6149 948.6016 948.6925 948.6802
#> Nov 1996 982.8128 982.8076 982.7959 982.7779 982.7824 982.7635 982.7668
#> Dec 1996 965.7072 965.7006 965.6898 965.6700 965.6750 965.6563 965.6599
#> Jan 1997 974.9326 974.9434 974.9614 974.9972 974.9825 975.0300 975.0241
#> Feb 1997 1002.2614 1002.2565 1002.2539 1002.2410 1002.2450 1002.2402 1002.2420
#> Mar 1997 985.9350 985.9168 985.8614 985.7736 985.7956 985.8044 985.8292
#> Apr 1997 945.1970 945.1949 945.2322 945.2734 945.2628 945.1942 945.1747
#> May 1997 1014.6311 1014.6250 1014.6237 1014.6097 1014.6139 1014.6105 1014.6125
#> Jun 1997 893.3560 893.3834 893.3356 893.3484 893.3424 893.2923 893.2883
#> Jul 1997 1006.7508 1006.7629 1006.8629 1006.9642 1006.9435 1007.0995 1007.0898
#> Aug 1997 982.7312 982.7239 982.6916 982.6557 982.6651 982.5962 982.6001
#> Sep 1997 1014.8115 1014.8045 1014.7843 1014.7583 1014.7636 1014.7413 1014.7474
#> Oct 1997 995.5602 995.5798 995.6271 995.6887 995.6764 995.7619 995.7501
#> Nov 1997 1015.0429 1015.0139 1014.9454 1014.8496 1014.8706 1014.7531 1014.7704
#> Dec 1997 978.3817 978.3952 978.4380 978.4860 978.4771 978.5517 978.5425
#> Jan 1998 1068.0213 1068.0065 1067.9636 1067.9192 1067.9190 1067.8600 1067.8687
#> Feb 1998 989.9979 989.9913 989.9923 989.9781 989.9829 989.9825 989.9844
#> Mar 1998 987.8111 987.7973 987.7992 987.7812 987.7882 987.7182 987.7145
#> Apr 1998 1028.0953 1028.1044 1028.1481 1028.1831 1028.1781 1028.2821 1028.2777
#> May 1998 999.7121 999.6806 999.6285 999.5378 999.5588 999.4637 999.4798
#> Jun 1998 914.1477 914.2106 914.1941 914.2870 914.2622 914.2825 914.2632
#> Jul 1998 1068.1790 1068.1933 1068.3238 1068.4565 1068.4285 1068.6311 1068.6194
#> Aug 1998 1028.4183 1028.4085 1028.3551 1028.3019 1028.3131 1028.2195 1028.2273
#> Sep 1998 1015.6243 1015.6257 1015.6189 1015.6163 1015.6157 1015.6175 1015.6188
#> Oct 1998 1052.6761 1052.6711 1052.6568 1052.6378 1052.6412 1052.6213 1052.6245
#> Nov 1998 1024.8030 1024.7947 1024.7801 1024.7556 1024.7604 1024.7376 1024.7418
#> Dec 1998 1027.2597 1027.2709 1027.3131 1027.3541 1027.3485 1027.4183 1027.4095
#> Jan 1999 1103.5689 1103.5285 1103.4279 1103.3038 1103.3197 1103.1559 1103.1789
#> Feb 1999 1025.5563 1025.5482 1025.5516 1025.5356 1025.5413 1025.5424 1025.5443
#> Mar 1999 1041.8774 1041.8933 1041.9547 1042.0016 1042.0012 1042.1377 1042.1303
#> Apr 1999 1040.6878 1040.6871 1040.7368 1040.7755 1040.7689 1040.7729 1040.7581
#> May 1999 1044.0301 1043.9938 1043.9405 1043.8380 1043.8637 1043.7606 1043.7782
#> Jun 1999 965.7061 965.7826 965.7540 965.8597 965.8327 965.8402 965.8176
#> Jul 1999 1087.6932 1087.6788 1087.7631 1087.8343 1087.8112 1087.9391 1087.9449
#> Aug 1999 1057.1619 1057.1726 1057.1527 1057.1535 1057.1540 1057.1274 1057.1252
#> Sep 1999 1085.7164 1085.7290 1085.7395 1085.7648 1085.7592 1085.7889 1085.7831
#> Oct 1999 1086.5026 1086.4720 1086.3931 1086.2873 1086.3097 1086.1756 1086.1941
#> Nov 1999 1076.0182 1076.0296 1076.0669 1076.1239 1076.0994 1076.1815 1076.1726
#> Dec 1999 1073.3784 1073.3915 1073.4421 1073.4869 1073.4839 1073.5622 1073.5514
#> Jan 2000 1082.5045 1082.4634 1082.3650 1082.2384 1082.2571 1082.0932 1082.1163
#> Feb 2000 1072.1026 1072.1014 1072.1241 1072.1313 1072.1332 1072.1654 1072.1628
#> Mar 2000 1069.2877 1069.2934 1069.3552 1069.3996 1069.4018 1069.4151 1069.3972
#> Apr 2000 1103.7215 1103.6807 1103.6041 1103.4687 1103.5037 1103.4089 1103.4366
#> May 2000 1068.8307 1068.8413 1068.9025 1068.9490 1068.9475 1069.0386 1069.0280
#> Jun 2000 1256.0967 1256.1906 1256.1614 1256.2861 1256.2619 1256.2693 1256.2412
#> Jul 2000 897.0512 897.0197 897.0416 897.0488 897.0306 897.0654 897.0828
#> Aug 2000 1176.9000 1176.9376 1176.9754 1177.0511 1177.0418 1177.1144 1177.0975
#> Sep 2000 1158.2195 1158.2160 1158.1795 1158.1391 1158.1530 1158.0913 1158.0946
#> Oct 2000 1103.1421 1103.1357 1103.1138 1103.0792 1103.0920 1103.0503 1103.0543
#> Nov 2000 1093.3142 1093.3192 1093.3375 1093.4212 1093.3504 1093.4513 1093.4443
#> Dec 2000 1152.7487 1152.7109 1152.6347 1152.5013 1152.5434 1152.3897 1152.4097
#> Jan 2001 1113.6923 1113.7027 1113.7353 1113.7716 1113.7639 1113.8185 1113.8104
#> Feb 2001 1140.1943 1140.1876 1140.1941 1140.1759 1140.1875 1140.1855 1140.1868
#> Mar 2001 1214.2202 1214.2019 1214.2049 1214.1631 1214.1896 1214.0905 1214.0876
#> Apr 2001 1107.0326 1107.0184 1107.0030 1106.9460 1106.9697 1106.9782 1106.9917
#> May 2001 1146.3081 1146.3170 1146.3740 1146.4076 1146.4151 1146.4893 1146.4805
#> Jun 2001 1102.0608 1102.1081 1102.0340 1102.0455 1102.0527 1101.9536 1101.9470
#> Jul 2001 1146.3760 1146.3631 1146.4621 1146.5786 1146.5212 1146.7022 1146.7088
#> Aug 2001 1121.3117 1121.3465 1121.3796 1121.4386 1121.4406 1121.4923 1121.4771
#> Sep 2001 1125.0403 1125.0157 1124.9207 1124.7944 1124.8345 1124.6625 1124.6726
#> Oct 2001 1155.5521 1155.5716 1155.6130 1155.6528 1155.6585 1155.7163 1155.7047
#> Nov 2001 1190.3415 1190.3419 1190.3481 1190.4726 1190.3469 1190.4862 1190.4793
#> Dec 2001 1210.2606 1210.2243 1210.1470 1210.0095 1210.0559 1209.8982 1209.9178
#> Jan 2002 1172.7472 1172.7596 1172.7950 1172.8335 1172.8266 1172.8895 1172.8812
#> Feb 2002 1174.0857 1174.0828 1174.0876 1174.0787 1174.0838 1174.0905 1174.0916
#> Mar 2002 1187.0024 1186.9785 1186.9079 1186.7800 1186.8225 1186.8160 1186.8487
#> Apr 2002 1195.1650 1195.1603 1195.1991 1195.2331 1195.2306 1195.1309 1195.1203
#> May 2002 1222.5248 1222.5385 1222.5891 1222.6315 1222.6318 1222.7095 1222.7005
#> Jun 2002 1221.7479 1221.7483 1221.6539 1221.4907 1221.6205 1221.3414 1221.3538
#> Jul 2002 1117.5004 1117.5205 1117.6715 1117.8832 1117.7931 1118.0881 1118.0746
#> Aug 2002 1251.7205 1251.7263 1251.6947 1251.6629 1251.6817 1251.6235 1251.6236
#> Sep 2002 1165.1833 1165.1866 1165.1569 1165.1169 1165.1373 1165.0854 1165.0703
#> Oct 2002 1234.5954 1234.6173 1234.6614 1234.7047 1234.7092 1234.7739 1234.7595
#> Nov 2002 1331.5450 1331.5130 1331.4319 1331.5057 1331.3394 1331.3941 1331.4040
#> Dec 2002 1249.7376 1249.7298 1249.7148 1249.6646 1249.6930 1249.6460 1249.6497
#> Jan 2003 1248.8973 1248.9156 1248.9597 1249.0121 1249.0034 1249.0842 1249.0748
#> Feb 2003 1250.6578 1250.6591 1250.6617 1250.6619 1250.6622 1250.6741 1250.6767
#> Mar 2003 1300.8967 1300.8528 1300.7635 1300.6376 1300.6673 1300.4262 1300.4457
#> Apr 2003 1289.5620 1289.5767 1289.6092 1289.6458 1289.6432 1289.7466 1289.7708
#> May 2003 1297.3901 1297.3826 1297.3517 1297.3092 1297.3153 1297.2927 1297.2950
#> Jun 2003 1285.4873 1285.4935 1285.5199 1285.3708 1285.5829 1285.3634 1285.3676
#> Jul 2003 1229.4373 1229.4671 1229.6291 1229.8826 1229.7686 1230.1022 1230.0880
#> Aug 2003 1300.3469 1300.3161 1300.2101 1300.0831 1300.1127 1299.9332 1299.9584
#> Sep 2003 1303.9525 1303.9828 1303.9959 1303.9981 1304.0200 1304.0618 1304.0148
#> Oct 2003 1341.3311 1341.3593 1341.4242 1341.4946 1341.4886 1341.5868 1341.5605
#> Nov 2003 1375.2507 1375.1872 1375.0325 1375.0110 1374.8549 1374.7790 1374.7950
#> Dec 2003 1299.3634 1299.3885 1299.4556 1299.5158 1299.5146 1299.6057 1299.5766
#> Jan 2004 1351.7467 1351.7401 1351.7235 1351.6930 1351.6968 1351.6634 1351.6549
#> Feb 2004 1328.3699 1328.3528 1328.3095 1328.2498 1328.2558 1328.1821 1328.1817
#> Mar 2004 1311.8155 1311.8245 1311.8270 1311.8919 1311.8574 1311.8430 1311.9029
#> Apr 2004 1344.7766 1344.7950 1344.7699 1344.8375 1344.8189 1344.9395 1345.0392
#> May 2004 1374.8926 1374.8618 1374.7503 1374.6128 1374.6213 1374.4947 1374.4888
#> Jun 2004 1400.1734 1400.1919 1400.3589 1400.2241 1400.5300 1400.3701 1400.3430
#> Jul 2004 1366.3603 1366.3704 1366.4736 1366.6544 1366.5456 1366.7702 1366.7557
#> Aug 2004 1359.8211 1359.8117 1359.7891 1359.7659 1359.7590 1359.7185 1359.7183
#> Sep 2004 1434.6640 1434.6901 1434.6866 1434.6404 1434.6793 1434.6955 1434.6311
#> Oct 2004 1414.0701 1414.0364 1413.9626 1413.8509 1413.8728 1413.7176 1413.7197
#> Nov 2004 1358.0271 1358.0288 1358.0446 1358.2329 1358.0430 1358.2281 1358.1971
#> Dec 2004 1353.8215 1353.8523 1353.9370 1354.0197 1354.0101 1354.1228 1354.0807
#> Jan 2005 1431.8494 1431.8171 1431.7310 1431.5953 1431.6290 1431.4665 1431.4620
#> Feb 2005 1426.4253 1426.4382 1426.4549 1426.4663 1426.4660 1426.4988 1426.4667
#> Mar 2005 1431.6142 1431.6395 1431.5691 1431.5955 1431.5626 1431.7600 1431.9327
#> Apr 2005 1285.1294 1285.1083 1284.9502 1284.9317 1284.9278 1284.7335 1284.8858
#> May 2005 1360.7660 1360.7772 1360.7294 1360.6687 1360.6540 1360.7028 1360.6492
#> Jun 2005 1453.4877 1453.4748 1453.7004 1453.7195 1453.9712 1453.7367 1453.6973
#> Jul 2005 1347.3184 1347.2723 1347.3066 1347.2779 1347.1749 1347.2360 1347.2452
#> Aug 2005 1395.9973 1396.0215 1396.0657 1396.1179 1396.0853 1396.1834 1396.1498
#> Sep 2005 1393.2461 1393.2733 1393.2440 1393.1295 1393.1966 1393.1838 1393.1017
#> Oct 2005 1378.9537 1378.9268 1378.8664 1378.7648 1378.7856 1378.6506 1378.6376
#> Nov 2005 1370.4798 1370.4898 1370.5382 1370.6983 1370.5812 1370.7262 1370.6845
#> Dec 2005 1392.7066 1392.7154 1392.7605 1392.8010 1392.8223 1392.8326 1392.8015
#> Jan 2006 1348.0165 1348.0250 1348.0498 1348.0799 1348.1106 1348.1127 1348.0862
#> Feb 2006 1422.4629 1422.4940 1422.5277 1422.5176 1422.4486 1422.5303 1422.4791
#> Mar 2006 1386.4933 1386.4931 1386.3927 1386.4642 1386.4430 1386.3720 1386.6101
#> Apr 2006 1439.7856 1439.7563 1439.4523 1439.3819 1439.4292 1439.3683 1439.6662
#> May 2006 1360.5226 1360.5840 1360.3979 1360.2123 1360.1141 1360.2941 1360.1148
#> Jun 2006 1426.5803 1426.4834 1426.8986 1427.1996 1427.3666 1427.0708 1427.0097
#> Jul 2006 1458.5533 1458.4743 1458.4994 1458.3498 1458.2442 1458.2902 1458.3230
#> Aug 2006 1429.2614 1429.2942 1429.2666 1429.2238 1429.1923 1429.3195 1429.2885
#> Sep 2006 1348.5492 1348.5529 1348.3723 1348.0586 1348.1412 1348.0150 1347.9690
#> Oct 2006 1405.5544 1405.5746 1405.5318 1405.4092 1405.4316 1405.4627 1405.4296
#> Nov 2006 1450.3083 1450.3475 1450.3575 1450.3306 1450.2572 1450.3263 1450.2861
#> Dec 2006 1448.8455 1448.8433 1448.7552 1448.5530 1448.5816 1448.3996 1448.3924
#> Jan 2007 1403.2261 1403.2749 1404.2904 1405.6603 1405.8434 1406.0645 1405.9036
#> Feb 2007 1437.3086 1437.3621 1437.3455 1437.1209 1436.9514 1436.9755 1436.9161
#> Mar 2007 1537.1590 1537.1305 1536.9107 1536.7372 1536.7366 1536.4332 1536.7318
#> Apr 2007 1386.0031 1385.9608 1385.1982 1385.4577 1385.5638 1386.0221 1386.4473
#> May 2007 1468.1383 1468.2161 1467.7758 1467.1545 1466.9710 1467.0627 1466.7704
#> Jun 2007 1508.2254 1507.9893 1508.5105 1508.9122 1508.9073 1508.3780 1508.3330
#> Jul 2007 1475.4260 1475.3405 1475.4837 1475.2236 1475.0978 1475.2273 1475.2791
#> Aug 2007 1519.1066 1519.1518 1519.1389 1518.9616 1518.9559 1519.1093 1519.0875
#> Sep 2007 1520.1161 1520.0963 1519.7846 1519.1624 1519.3071 1519.0083 1518.9998
#> Oct 2007 1499.0164 1499.0990 1499.1097 1498.9586 1499.0120 1499.2422 1499.1766
#> Nov 2007 1513.6099 1513.6956 1513.6618 1513.4763 1513.4516 1513.4974 1513.4370
#> Dec 2007 1526.7212 1526.7578 1526.5823 1526.2534 1526.2730 1526.0358 1526.0080
#> Jan 2008 1529.5345 1529.6237 1531.6770 1534.5486 1534.9164 1535.2521 1534.9195
#> Feb 2008 1512.5136 1512.6330 1512.5556 1512.1877 1511.8713 1511.8626 1511.7479
#> Mar 2008 1504.2092 1504.2003 1503.8430 1503.4838 1503.4832 1503.1430 1503.4494
#> Apr 2008 1539.1035 1539.0447 1537.6348 1538.3540 1538.5016 1539.2848 1540.1107
#> May 2008 1539.6415 1539.6464 1538.8279 1537.7041 1537.4241 1537.1481 1536.7420
#> Jun 2008 1427.4464 1427.0564 1427.7367 1428.1805 1428.0079 1427.3905 1427.3263
#> Jul 2008 1567.3308 1567.1484 1567.6595 1567.3270 1567.1700 1567.2647 1567.3131
#> Aug 2008 1494.8538 1494.6955 1494.7920 1494.1461 1494.2276 1493.9598 1494.0035
#> Sep 2008 1530.3313 1530.2139 1530.4000 1529.7773 1529.9200 1530.0140 1530.0165
#> Oct 2008 1512.0566 1511.9575 1512.2949 1511.8249 1511.9902 1512.5074 1512.4479
#> Nov 2008 1532.3187 1533.6131 1533.7205 1532.9141 1533.0145 1533.0267 1532.9820
#> Dec 2008 1579.9751 1579.8011 1578.2062 1577.6472 1577.7074 1578.1081 1577.9775
#> Jan 2009 1582.7093 1582.6284 1586.1405 1592.2744 1592.9753 1593.7673 1593.2069
#> Feb 2009 1461.7363 1461.9469 1462.0367 1461.0848 1459.7303 1460.1158 1459.8778
#> Mar 2009 1611.1530 1611.1429 1610.7926 1610.1799 1610.3507 1605.9198 1605.9084
#> Apr 2009 1581.9130 1581.7537 1579.8244 1580.9129 1581.2280 1583.5981 1585.4165
#> May 2009 1654.6609 1654.5635 1653.7306 1652.2073 1651.7992 1651.6175 1650.9900
#> Jun 2009 1522.2588 1521.7809 1522.7170 1523.1146 1522.7873 1521.9018 1521.7217
#> Jul 2009 1541.8949 1541.5728 1542.4119 1541.8332 1541.7342 1541.7623 1541.8763
#> Aug 2009 1586.2221 1585.8820 1586.4491 1585.4820 1585.6433 1585.4127 1585.4798
#> Sep 2009 1550.6408 1550.3344 1551.0780 1550.1658 1550.3941 1550.6012 1550.6429
#> Oct 2009 1612.4074 1612.1216 1613.0683 1612.1177 1612.4608 1613.1989 1613.1796
#> Nov 2009 1575.0741 1577.7886 1578.7191 1577.6594 1577.9023 1578.5673 1578.4755
#> Dec 2009 1538.6842 1538.1708 1534.4703 1533.4840 1533.6733 1534.6451 1534.4350
#> Jan 2010 1600.1517 1599.8897 1604.1933 1613.5068 1614.3709 1615.8518 1615.1599
#> Feb 2010 1540.5045 1540.8821 1541.2822 1539.7460 1536.8023 1538.1143 1537.6647
#> Mar 2010 1537.3722 1537.4067 1537.1177 1536.4316 1536.8477 1527.7572 1527.2907
#> Apr 2010 1501.9869 1501.7491 1499.9825 1501.3079 1501.7230 1504.8906 1507.7577
#> May 2010 1549.3709 1549.2368 1548.6105 1547.1076 1546.5623 1546.7818 1545.9080
#> Jun 2010 1583.5370 1582.9559 1584.0843 1584.1669 1583.8998 1582.5095 1582.1900
#> Jul 2010 1562.6247 1562.1387 1563.1590 1562.3322 1562.3678 1562.2204 1562.4260
#> Aug 2010 1551.6957 1551.2012 1552.2295 1551.1215 1551.3156 1551.3601 1551.4462
#> Sep 2010 1575.6347 1575.0991 1576.3823 1575.1295 1575.4291 1575.8033 1575.9010
#> Oct 2010 1549.8747 1549.4050 1550.9131 1549.4893 1549.9742 1550.9166 1550.9490
#> Nov 2010 1531.7613 1535.8217 1537.5901 1536.1622 1536.5298 1537.8403 1537.7106
#> Dec 2010 1522.1086 1521.1941 1515.3757 1513.7528 1514.0605 1515.6941 1515.3823
#> Jan 2011 1528.7963 1528.3716 1533.5825 1546.4719 1547.4874 1549.8800 1549.0091
#> Feb 2011 1549.0433 1549.5851 1550.2907 1548.0251 1543.2678 1545.6306 1544.9522
#> Mar 2011 1521.4649 1521.4598 1521.0453 1519.9610 1520.6876 1505.5994 1504.6023
#> Apr 2011 1556.0210 1555.6449 1553.6211 1555.1690 1555.7946 1560.5652 1565.0079
#> May 2011 1514.0415 1513.9078 1513.7011 1512.3274 1511.6586 1512.5453 1511.4099
#> Jun 2011 1505.4914 1504.9268 1505.9997 1505.5479 1505.4145 1503.6316 1503.1862
#> Jul 2011 1524.5770 1523.9562 1525.0437 1523.9477 1524.1432 1523.9306 1524.2062
#> Aug 2011 1501.8500 1501.2362 1502.6318 1501.4485 1501.6965 1502.1014 1502.1706
#> Sep 2011 1491.2970 1490.6311 1492.2622 1490.7977 1491.1986 1491.6489 1491.7404
#> Oct 2011 1484.4476 1483.9327 1485.9556 1484.3585 1484.9528 1486.0863 1486.2160
#> Nov 2011 NaN 1494.5799 1496.9741 1495.2981 1495.8364 1497.5209 1497.5579
#> Dec 2011 NaN NaN 1520.2715 1518.1427 1518.5970 1520.6484 1520.4364
#> Jan 2012 NaN NaN NaN 1477.4687 1478.4527 1481.5283 1480.7686
#> Feb 2012 NaN NaN NaN NaN 1502.7681 1505.9099 1505.2455
#> Mar 2012 NaN NaN NaN NaN NaN 1538.5304 1537.3305
#> Apr 2012 NaN NaN NaN NaN NaN NaN 1488.3125
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 29 Series 30 Series 31 Series 32 Series 33 Series 34 Series 35
#> Apr 1982 489.8325 489.8574 489.8571 489.8466 489.8531 489.8545 489.8573
#> May 1982 478.3473 478.3014 478.2727 478.2809 478.2716 478.2700 478.2688
#> Jun 1982 486.5296 486.6219 486.6650 486.6433 486.6632 486.6669 486.6711
#> Jul 1982 485.0590 485.0835 485.0935 485.0872 485.0926 485.0936 485.0949
#> Aug 1982 491.2617 491.1821 491.1411 491.1582 491.1415 491.1384 491.1353
#> Sep 1982 496.7254 496.8686 496.9403 496.9085 496.9389 496.9445 496.9504
#> Oct 1982 481.2462 481.1219 481.0598 481.0874 481.0610 481.0562 481.0510
#> Nov 1982 485.7701 485.7975 485.8112 485.8051 485.8109 485.8120 485.8131
#> Dec 1982 488.0348 488.1881 488.2646 488.2305 488.2631 488.2690 488.2754
#> Jan 1983 445.8298 445.5781 445.4549 445.5118 445.4581 445.4483 445.4375
#> Feb 1983 504.3361 504.3290 504.3255 504.3271 504.3256 504.3253 504.3250
#> Mar 1983 513.3545 513.3850 513.3838 513.3704 513.3785 513.3804 513.3840
#> Apr 1983 560.9654 560.8630 560.8409 560.8749 560.8506 560.8454 560.8372
#> May 1983 481.3636 481.4549 481.4945 481.4721 481.4919 481.4956 481.5002
#> Jun 1983 507.0300 507.1399 507.1917 507.1662 507.1898 507.1941 507.1991
#> Jul 1983 499.6237 499.4823 499.4102 499.4410 499.4112 499.4058 499.4001
#> Aug 1983 509.9759 510.0733 510.1202 510.0980 510.1188 510.1226 510.1269
#> Sep 1983 515.8571 516.0133 516.0919 516.0574 516.0906 516.0966 516.1030
#> Oct 1983 515.4949 515.3467 515.2729 515.3060 515.2745 515.2687 515.2625
#> Nov 1983 528.7265 528.7466 528.7586 528.7549 528.7590 528.7597 528.7603
#> Dec 1983 531.2972 531.2978 531.2986 531.2987 531.2988 531.2988 531.2987
#> Jan 1984 482.2835 482.1712 482.1174 482.1433 482.1192 482.1148 482.1098
#> Feb 1984 534.2457 534.2911 534.3141 534.3042 534.3138 534.3155 534.3174
#> Mar 1984 555.3603 555.2765 555.2577 555.2850 555.2652 555.2611 555.2546
#> Apr 1984 522.1672 522.0239 521.9350 521.9601 521.9313 521.9265 521.9229
#> May 1984 559.6032 559.8683 559.9940 559.9326 559.9894 559.9999 560.0118
#> Jun 1984 553.2423 553.2060 553.1855 553.1927 553.1851 553.1838 553.1826
#> Jul 1984 574.9053 574.9004 574.8969 574.8976 574.8966 574.8965 574.8964
#> Aug 1984 564.3353 564.4779 564.5478 564.5156 564.5460 564.5516 564.5577
#> Sep 1984 571.0147 570.8464 570.7645 570.8026 570.7667 570.7602 570.7529
#> Oct 1984 578.0956 578.2489 578.3253 578.2912 578.3237 578.3297 578.3361
#> Nov 1984 578.7576 578.7699 578.7808 578.7799 578.7821 578.7824 578.7823
#> Dec 1984 572.2396 572.0596 571.9708 572.0112 571.9729 571.9659 571.9582
#> Jan 1985 594.1537 594.2336 594.2759 594.2590 594.2758 594.2788 594.2818
#> Feb 1985 610.6816 610.6851 610.6878 610.6874 610.6880 610.6881 610.6882
#> Mar 1985 606.0124 605.7291 605.5915 605.6556 605.5953 605.5842 605.5720
#> Apr 1985 629.6463 629.6907 629.7043 629.6910 629.7013 629.7034 629.7064
#> May 1985 660.8981 661.1793 661.3133 661.2485 661.3087 661.3198 661.3324
#> Jun 1985 624.4488 624.2211 624.1061 624.1562 624.1080 624.0992 624.0899
#> Jul 1985 633.0698 633.2564 633.3496 633.3081 633.3477 633.3549 633.3627
#> Aug 1985 666.9432 666.9512 666.9549 666.9531 666.9548 666.9551 666.9554
#> Sep 1985 609.4871 609.4864 609.4883 609.4893 609.4890 609.4888 609.4885
#> Oct 1985 660.3335 660.4887 660.5663 660.5318 660.5648 660.5708 660.5772
#> Nov 1985 652.0316 651.8263 651.7324 651.7812 651.7369 651.7286 651.7190
#> Dec 1985 636.8970 636.8750 636.8645 636.8696 636.8649 636.8640 636.8630
#> Jan 1986 658.7362 658.8745 658.9454 658.9154 658.9446 658.9499 658.9554
#> Feb 1986 652.3733 652.3802 652.3848 652.3837 652.3850 652.3853 652.3854
#> Mar 1986 612.8349 612.5213 612.3176 612.3687 612.3066 612.2964 612.2898
#> Apr 1986 657.5536 657.6789 657.7806 657.7679 657.7910 657.7943 657.7942
#> May 1986 726.6829 726.7368 726.7585 726.7446 726.7564 726.7587 726.7616
#> Jun 1986 604.0391 603.9818 603.9522 603.9646 603.9525 603.9504 603.9481
#> Jul 1986 702.6437 702.8597 702.9686 702.9210 702.9668 702.9751 702.9840
#> Aug 1986 677.2782 677.0868 676.9920 677.0348 676.9941 676.9867 676.9786
#> Sep 1986 710.7835 710.9785 711.0786 711.0362 711.0774 711.0849 711.0927
#> Oct 1986 689.7165 689.8752 689.9549 689.9198 689.9534 689.9595 689.9661
#> Nov 1986 656.9299 656.5256 656.3337 656.4271 656.3406 656.3246 656.3064
#> Dec 1986 713.8333 714.0243 714.1196 714.0772 714.1177 714.1251 714.1330
#> Jan 1987 720.7184 720.6972 720.6889 720.6946 720.6898 720.6889 720.6877
#> Feb 1987 708.5744 708.5901 708.5998 708.5971 708.6002 708.6007 708.6011
#> Mar 1987 702.5050 702.4446 702.4357 702.4572 702.4425 702.4394 702.4340
#> Apr 1987 707.7298 707.8364 707.8504 707.8114 707.8376 707.8433 707.8531
#> May 1987 710.8842 710.6792 710.5747 710.6195 710.5762 710.5683 710.5600
#> Jun 1987 714.6902 714.7391 714.7620 714.7502 714.7610 714.7630 714.7653
#> Jul 1987 772.9428 773.2136 773.3511 773.2919 773.3491 773.3594 773.3704
#> Aug 1987 705.0341 704.8534 704.7634 704.8038 704.7653 704.7582 704.7506
#> Sep 1987 720.7917 720.9691 721.0601 721.0216 721.0591 721.0659 721.0729
#> Oct 1987 744.6547 744.6142 744.5949 744.6042 744.5955 744.5939 744.5921
#> Nov 1987 683.9332 683.7052 683.6009 683.6551 683.6060 683.5968 683.5860
#> Dec 1987 750.6227 750.8390 750.9461 750.8978 750.9437 750.9521 750.9612
#> Jan 1988 754.9042 754.6766 754.5648 754.6161 754.5676 754.5588 754.5490
#> Feb 1988 737.9478 738.0461 738.0967 738.0754 738.0962 738.0999 738.1038
#> Mar 1988 757.5922 757.7503 757.7976 757.7500 757.7866 757.7940 757.8049
#> Apr 1988 788.1322 788.1347 788.1535 788.1598 788.1587 788.1581 788.1559
#> May 1988 744.8983 744.8971 744.8960 744.8960 744.8958 744.8958 744.8958
#> Jun 1988 758.1287 757.9534 757.8637 757.9014 757.8647 757.8580 757.8512
#> Jul 1988 756.5292 756.3973 756.3340 756.3645 756.3362 756.3309 756.3250
#> Aug 1988 748.5299 748.7618 748.8741 748.8217 748.8709 748.8799 748.8899
#> Sep 1988 776.8362 777.0045 777.0913 777.0548 777.0904 777.0968 777.1035
#> Oct 1988 773.7337 773.4816 773.3573 773.4140 773.3603 773.3505 773.3398
#> Nov 1988 785.3129 785.3296 785.3458 785.3449 785.3479 785.3483 785.3480
#> Dec 1988 809.8439 809.8729 809.8866 809.8800 809.8861 809.8872 809.8885
#> Jan 1989 753.6264 753.6227 753.6218 753.6229 753.6221 753.6219 753.6217
#> Feb 1989 768.3596 768.4194 768.4505 768.4376 768.4502 768.4525 768.4548
#> Mar 1989 793.1554 793.3349 793.3772 793.3188 793.3613 793.3702 793.3841
#> Apr 1989 787.3944 787.2126 787.1620 787.2180 787.1758 787.1672 787.1541
#> May 1989 769.7914 770.0098 770.1195 770.0712 770.1175 770.1260 770.1350
#> Jun 1989 816.7107 816.3039 816.0975 816.1859 816.1002 816.0848 816.0684
#> Jul 1989 799.2374 799.1358 799.0866 799.1099 799.0881 799.0841 799.0796
#> Aug 1989 833.1266 833.3577 833.4660 833.4128 833.4618 833.4708 833.4812
#> Sep 1989 822.9399 822.8663 822.8329 822.8503 822.8346 822.8317 822.8282
#> Oct 1989 784.4116 784.4071 784.4064 784.4079 784.4068 784.4066 784.4062
#> Nov 1989 827.5034 827.5758 827.6170 827.6027 827.6178 827.6204 827.6228
#> Dec 1989 819.4263 819.2436 819.1521 819.1927 819.1539 819.1469 819.1392
#> Jan 1990 804.0815 804.3060 804.4185 804.3686 804.4163 804.4250 804.4344
#> Feb 1990 812.9468 813.0284 813.0698 813.0518 813.0692 813.0724 813.0757
#> Mar 1990 854.2618 854.3293 854.4102 854.4135 854.4236 854.4243 854.4207
#> Apr 1990 793.2759 793.2384 793.1774 793.1691 793.1652 793.1655 793.1697
#> May 1990 820.1406 820.3824 820.5040 820.4505 820.5018 820.5112 820.5212
#> Jun 1990 866.0253 865.1944 864.7762 864.9591 864.7832 864.7513 864.7172
#> Jul 1990 791.9794 792.1153 792.1822 792.1517 792.1805 792.1858 792.1916
#> Aug 1990 874.1006 874.3124 874.4083 874.3584 874.4034 874.4118 874.4216
#> Sep 1990 813.7800 813.4597 813.3041 813.3766 813.3086 813.2960 813.2822
#> Oct 1990 803.5707 803.8214 803.9480 803.8927 803.9459 803.9556 803.9659
#> Nov 1990 832.5291 832.6717 832.7450 832.7140 832.7442 832.7497 832.7554
#> Dec 1990 824.2041 824.0285 823.9416 823.9809 823.9436 823.9368 823.9293
#> Jan 1991 821.1106 821.3379 821.4525 821.4022 821.4505 821.4593 821.4687
#> Feb 1991 832.8487 832.9491 833.0006 832.9788 833.0001 833.0039 833.0079
#> Mar 1991 814.8039 814.5248 814.3375 814.3808 814.3260 814.3172 814.3120
#> Apr 1991 832.1529 832.4292 832.6193 832.5781 832.6321 832.6407 832.6452
#> May 1991 827.0747 827.3544 827.4953 827.4335 827.4928 827.5036 827.5152
#> Jun 1991 780.5821 779.6074 779.1185 779.3338 779.1273 779.0898 779.0496
#> Jul 1991 881.7050 881.9939 882.1342 882.0676 882.1296 882.1411 882.1538
#> Aug 1991 899.5317 899.5173 899.5005 899.5011 899.4980 899.4976 899.4979
#> Sep 1991 804.7256 804.6494 804.6153 804.6336 804.6173 804.6142 804.6106
#> Oct 1991 865.5926 865.8946 866.0471 865.9806 866.0447 866.0563 866.0687
#> Nov 1991 856.9853 856.8955 856.8528 856.8736 856.8544 856.8509 856.8469
#> Dec 1991 842.3774 842.4339 842.4632 842.4511 842.4631 842.4652 842.4674
#> Jan 1992 871.6594 871.9239 872.0558 871.9961 872.0525 872.0628 872.0741
#> Feb 1992 887.3207 887.2372 887.1974 887.2167 887.1989 887.1956 887.1918
#> Mar 1992 831.2447 831.2775 831.3284 831.3347 831.3385 831.3384 831.3350
#> Apr 1992 878.0853 878.2665 878.3232 878.2699 878.3115 878.3199 878.3320
#> May 1992 889.8464 889.6398 889.5388 889.5856 889.5416 889.5335 889.5246
#> Jun 1992 846.1657 845.6916 845.4521 845.5568 845.4561 845.4379 845.4184
#> Jul 1992 872.9108 873.0978 873.1847 873.1390 873.1800 873.1878 873.1968
#> Aug 1992 856.1882 855.9722 855.8583 855.9046 855.8586 855.8503 855.8417
#> Sep 1992 881.6465 881.7984 881.8779 881.8455 881.8776 881.8834 881.8893
#> Oct 1992 910.2104 910.2916 910.3342 910.3171 910.3342 910.3373 910.3404
#> Nov 1992 885.9087 885.8187 885.7757 885.7967 885.7774 885.7738 885.7698
#> Dec 1992 864.1204 864.4062 864.5499 864.4869 864.5475 864.5585 864.5703
#> Jan 1993 910.8634 910.5930 910.4571 910.5155 910.4585 910.4482 910.4373
#> Feb 1993 878.3036 878.3890 878.4328 878.4145 878.4325 878.4357 878.4391
#> Mar 1993 887.4886 887.7510 887.9117 887.8651 887.9180 887.9269 887.9338
#> Apr 1993 884.2843 884.4577 884.5163 884.4669 884.5063 884.5141 884.5251
#> May 1993 916.7935 916.5822 916.4784 916.5261 916.4811 916.4728 916.4637
#> Jun 1993 912.1917 911.9234 911.7877 911.8475 911.7902 911.7798 911.7686
#> Jul 1993 858.7660 858.5705 858.4655 858.5037 858.4640 858.4571 858.4505
#> Aug 1993 856.2151 856.3212 856.3737 856.3491 856.3711 856.3751 856.3795
#> Sep 1993 908.8139 908.8869 908.9252 908.9125 908.9279 908.9305 908.9329
#> Oct 1993 900.5902 900.4228 900.3407 900.3787 900.3430 900.3364 900.3292
#> Nov 1993 883.2499 883.4188 883.5037 883.4664 883.5022 883.5087 883.5157
#> Dec 1993 893.9677 894.2347 894.3685 894.3094 894.3660 894.3763 894.3874
#> Jan 1994 889.0095 888.7329 888.5919 888.6502 888.5921 888.5817 888.5710
#> Feb 1994 907.8021 907.8489 907.8727 907.8628 907.8726 907.8743 907.8762
#> Mar 1994 932.1707 932.3442 932.3871 932.3319 932.3726 932.3811 932.3942
#> Apr 1994 917.5544 917.5414 917.5848 917.6076 917.6001 917.5975 917.5902
#> May 1994 911.3112 911.3330 911.3441 911.3400 911.3445 911.3453 911.3461
#> Jun 1994 943.4634 943.4393 943.4225 943.4240 943.4191 943.4183 943.4180
#> Jul 1994 870.8106 870.3161 870.0627 870.1682 870.0650 870.0465 870.0273
#> Aug 1994 928.0141 928.4646 928.6948 928.5947 928.6896 928.7068 928.7250
#> Sep 1994 954.2964 954.2909 954.2882 954.2961 954.2948 954.2944 954.2932
#> Oct 1994 955.0175 954.8176 954.7189 954.7646 954.7220 954.7142 954.7056
#> Nov 1994 910.3453 910.5185 910.6051 910.5672 910.6039 910.6106 910.6177
#> Dec 1994 956.7838 956.7598 956.7487 956.7551 956.7498 956.7488 956.7476
#> Jan 1995 887.1690 887.1115 887.0770 887.0837 887.0721 887.0702 887.0692
#> Feb 1995 933.8814 933.8855 933.8872 933.8852 933.8860 933.8862 933.8866
#> Mar 1995 955.1498 955.4194 955.5878 955.5399 955.5939 955.6029 955.6098
#> Apr 1995 975.0005 974.6002 974.3784 974.4577 974.3744 974.3598 974.3464
#> May 1995 926.3044 926.5601 926.6865 926.6281 926.6824 926.6924 926.7034
#> Jun 1995 944.3583 944.5348 944.6078 944.5523 944.5920 944.5995 944.6097
#> Jul 1995 966.0769 965.5804 965.3373 965.4675 965.3628 965.3433 965.3197
#> Aug 1995 1011.3816 1011.9055 1012.1756 1012.0578 1012.1680 1012.1879 1012.2092
#> Sep 1995 931.2767 930.9272 930.7511 930.8362 930.7620 930.7482 930.7327
#> Oct 1995 938.4623 938.4919 938.5065 938.4994 938.5057 938.5069 938.5082
#> Nov 1995 967.1609 967.3648 967.4663 967.4203 967.4636 967.4715 967.4803
#> Dec 1995 985.1348 984.7990 984.6331 984.7083 984.6368 984.6238 984.6097
#> Jan 1996 970.5280 970.6800 970.7448 970.6990 970.7314 970.7378 970.7466
#> Feb 1996 974.5815 974.6436 974.6750 974.6597 974.6728 974.6753 974.6783
#> Mar 1996 964.0934 963.7853 963.6473 963.7205 963.6535 963.6410 963.6264
#> Apr 1996 960.0673 960.2601 960.3605 960.3179 960.3581 960.3655 960.3734
#> May 1996 967.8904 968.1368 968.2586 968.2019 968.2542 968.2639 968.2747
#> Jun 1996 975.4737 975.0944 974.8723 974.9205 974.8449 974.8319 974.8221
#> Jul 1996 957.6618 957.9249 958.0731 958.0603 958.1151 958.1238 958.1272
#> Aug 1996 1034.9911 1035.2213 1035.3444 1035.2911 1035.3391 1035.3477 1035.3568
#> Sep 1996 908.5226 908.1631 907.9812 908.0675 907.9912 907.9772 907.9614
#> Oct 1996 948.5126 948.7740 948.9032 948.8435 948.8992 948.9094 948.9207
#> Nov 1996 982.8081 982.7400 982.7057 982.7196 982.7052 982.7027 982.7002
#> Dec 1996 965.7058 965.6345 965.6009 965.6171 965.6018 965.5990 965.5961
#> Jan 1997 974.9349 975.0367 975.0753 975.0370 975.0578 975.0622 975.0694
#> Feb 1997 1002.2667 1002.2256 1002.2089 1002.2157 1002.2065 1002.2051 1002.2040
#> Mar 1997 985.9957 985.6104 985.3581 985.4168 985.3404 985.3283 985.3215
#> Apr 1997 945.1211 945.3599 945.5668 945.5448 945.5871 945.5931 945.5924
#> May 1997 1014.6405 1014.5981 1014.5828 1014.5916 1014.5819 1014.5803 1014.5789
#> Jun 1997 893.2295 893.1730 893.0806 893.0255 893.0228 893.0237 893.0325
#> Jul 1997 1006.9180 1007.3890 1007.6647 1007.6683 1007.7636 1007.7775 1007.7785
#> Aug 1997 982.6802 982.5389 982.4676 982.4865 982.4568 982.4515 982.4470
#> Sep 1997 1014.8093 1014.7009 1014.6393 1014.6630 1014.6407 1014.6367 1014.6327
#> Oct 1997 995.5911 995.8304 995.9472 995.8878 995.9389 995.9485 995.9598
#> Nov 1997 1015.0006 1014.6296 1014.4452 1014.5238 1014.4450 1014.4308 1014.4162
#> Dec 1997 978.4177 978.6142 978.7154 978.6703 978.7116 978.7193 978.7281
#> Jan 1998 1067.9796 1067.7613 1067.6416 1067.6724 1067.6241 1067.6160 1067.6101
#> Feb 1998 990.0112 989.9728 989.9618 989.9701 989.9611 989.9596 989.9584
#> Mar 1998 987.7729 987.7667 987.8170 987.8347 987.8291 987.8273 987.8219
#> Apr 1998 1028.1706 1028.3151 1028.3801 1028.3432 1028.3740 1028.3803 1028.3890
#> May 1998 999.6967 999.3661 999.2140 999.2910 999.2192 999.2063 999.1923
#> Jun 1998 913.9964 914.2001 914.2060 914.0627 914.1198 914.1321 914.1567
#> Jul 1998 1068.4046 1069.0216 1069.3834 1069.3988 1069.5223 1069.5399 1069.5392
#> Aug 1998 1028.3475 1028.1169 1027.9892 1028.0189 1027.9717 1027.9635 1027.9570
#> Sep 1998 1015.6205 1015.5934 1015.5689 1015.5672 1015.5625 1015.5619 1015.5625
#> Oct 1998 1052.6647 1052.5836 1052.5398 1052.5497 1052.5326 1052.5299 1052.5281
#> Nov 1998 1024.7972 1024.7019 1024.6557 1024.6728 1024.6521 1024.6486 1024.6456
#> Dec 1998 1027.2972 1027.4798 1027.5782 1027.5359 1027.5737 1027.5808 1027.5891
#> Jan 1999 1103.4881 1102.9616 1102.6930 1102.7937 1102.6790 1102.6588 1102.6396
#> Feb 1999 1025.5736 1025.5343 1025.5269 1025.5354 1025.5258 1025.5244 1025.5231
#> Mar 1999 1041.9746 1042.1868 1042.2853 1042.2273 1042.2747 1042.2843 1042.2974
#> Apr 1999 1040.6821 1040.9040 1041.0785 1041.0502 1041.0914 1041.0981 1041.1011
#> May 1999 1044.0193 1043.6570 1043.4962 1043.5811 1043.5027 1043.4886 1043.4731
#> Jun 1999 965.5083 965.7263 965.7157 965.5449 965.6093 965.6233 965.6524
#> Jul 1999 1087.9307 1088.2998 1088.5449 1088.6625 1088.7296 1088.7354 1088.7160
#> Aug 1999 1057.1037 1057.0686 1057.0265 1057.0004 1056.9970 1056.9972 1057.0012
#> Sep 1999 1085.7070 1085.7850 1085.8106 1085.7736 1085.7920 1085.7959 1085.8028
#> Oct 1999 1086.4442 1086.0266 1085.8158 1085.8966 1085.8083 1085.7926 1085.7774
#> Nov 1999 1076.0462 1076.2280 1076.3131 1076.2696 1076.3040 1076.3107 1076.3190
#> Dec 1999 1073.4210 1073.6382 1073.7581 1073.7060 1073.7506 1073.7592 1073.7693
#> Jan 2000 1082.4292 1081.9074 1081.6460 1081.7486 1081.6348 1081.6147 1081.5952
#> Feb 2000 1072.1340 1072.1931 1072.2388 1072.2268 1072.2379 1072.2402 1072.2429
#> Mar 2000 1069.2877 1069.5675 1069.7776 1069.7323 1069.7885 1069.7980 1069.8041
#> Apr 2000 1103.7360 1103.2234 1102.9590 1103.0643 1102.9574 1102.9389 1102.9215
#> May 2000 1068.8942 1069.1238 1069.2615 1069.2127 1069.2621 1069.2713 1069.2810
#> Jun 2000 1255.8622 1256.1363 1256.1374 1255.9274 1256.0109 1256.0289 1256.0646
#> Jul 2000 897.2156 897.2622 897.3102 897.4637 897.4648 897.4596 897.4329
#> Aug 2000 1176.8772 1177.1435 1177.2523 1177.1515 1177.2162 1177.2288 1177.2470
#> Sep 2000 1158.1664 1158.0048 1157.9181 1157.9260 1157.8956 1157.8908 1157.8890
#> Oct 2000 1103.1188 1102.9975 1102.9401 1102.9523 1102.9285 1102.9247 1102.9223
#> Nov 2000 1093.3271 1093.4944 1093.5480 1093.5235 1093.5376 1093.5408 1093.5456
#> Dec 2000 1152.7046 1152.2610 1152.0600 1152.1525 1152.0573 1152.0404 1152.0232
#> Jan 2001 1113.7093 1113.8586 1113.9400 1113.8957 1113.9257 1113.9317 1113.9400
#> Feb 2001 1140.2123 1140.1884 1140.1967 1140.2008 1140.1953 1140.1945 1140.1941
#> Mar 2001 1214.1792 1214.1442 1214.2028 1214.2245 1214.2156 1214.2132 1214.2067
#> Apr 2001 1107.0866 1106.8885 1106.7777 1106.8082 1106.7708 1106.7650 1106.7617
#> May 2001 1146.3662 1146.5589 1146.6805 1146.6356 1146.6807 1146.6891 1146.6979
#> Jun 2001 1101.8523 1101.7575 1101.6154 1101.5238 1101.5271 1101.5295 1101.5438
#> Jul 2001 1146.6328 1147.0357 1147.2323 1147.3492 1147.4262 1147.4332 1147.4136
#> Aug 2001 1121.2844 1121.4998 1121.5883 1121.4946 1121.5535 1121.5651 1121.5817
#> Sep 2001 1124.9324 1124.4534 1124.2534 1124.3202 1124.2298 1124.2143 1124.2013
#> Oct 2001 1155.5691 1155.7536 1155.8508 1155.7878 1155.8341 1155.8431 1155.8548
#> Nov 2001 1190.3457 1190.5280 1190.5547 1190.5420 1190.5414 1190.5421 1190.5448
#> Dec 2001 1210.2154 1209.7864 1209.5922 1209.6808 1209.5856 1209.5688 1209.5526
#> Jan 2002 1172.7764 1172.9902 1173.1059 1173.0595 1173.0931 1173.0999 1173.1092
#> Feb 2002 1174.1038 1174.1520 1174.1909 1174.1889 1174.1863 1174.1862 1174.1874
#> Mar 2002 1187.0819 1186.6392 1186.3606 1186.4342 1186.3367 1186.3213 1186.3132
#> Apr 2002 1195.0842 1195.3744 1195.6381 1195.6188 1195.6617 1195.6674 1195.6660
#> May 2002 1222.5725 1222.8246 1222.9719 1222.9204 1222.9671 1222.9759 1222.9861
#> Jun 2002 1221.5557 1220.6420 1220.1144 1220.1390 1220.0848 1220.0752 1220.0648
#> Jul 2002 1117.7429 1118.4679 1118.7869 1118.7876 1118.9276 1118.9477 1118.9492
#> Aug 2002 1251.6567 1251.5570 1251.5050 1251.4940 1251.4785 1251.4762 1251.4775
#> Sep 2002 1165.1082 1165.0028 1165.0437 1165.0310 1165.0165 1165.0148 1165.0172
#> Oct 2002 1234.6133 1234.8421 1234.9707 1234.9033 1234.9542 1234.9640 1234.9765
#> Nov 2002 1331.4938 1331.3699 1331.2146 1331.2979 1331.2024 1331.1859 1331.1709
#> Dec 2002 1249.7411 1249.6947 1249.6877 1249.6985 1249.6746 1249.6709 1249.6696
#> Jan 2003 1248.9470 1249.2558 1249.4150 1249.3559 1249.4002 1249.4092 1249.4215
#> Feb 2003 1250.6852 1250.7816 1250.8323 1250.8234 1250.8215 1250.8221 1250.8254
#> Mar 2003 1300.7941 1300.4850 1300.3765 1300.4834 1300.3847 1300.3664 1300.3447
#> Apr 2003 1289.6731 1289.8955 1289.9586 1289.9188 1289.9386 1289.9436 1289.9556
#> May 2003 1297.2892 1297.1081 1297.0792 1297.0948 1297.0785 1297.0754 1297.0716
#> Jun 2003 1285.4264 1284.4149 1283.8156 1283.8026 1283.8386 1283.8444 1283.8389
#> Jul 2003 1229.6803 1230.9025 1231.3992 1231.3515 1231.5129 1231.5347 1231.5425
#> Aug 2003 1300.2679 1299.8488 1299.6129 1299.7039 1299.5957 1299.5768 1299.5602
#> Sep 2003 1303.8788 1303.6189 1303.9526 1303.8636 1303.9236 1303.9355 1303.9538
#> Oct 2003 1341.3623 1341.7070 1341.8671 1341.7846 1341.8481 1341.8606 1341.8764
#> Nov 2003 1375.1416 1374.6364 1374.2457 1374.4244 1374.2353 1374.2022 1374.1691
#> Dec 2003 1299.4100 1299.7826 1299.9407 1299.8642 1299.9203 1299.9319 1299.9467
#> Jan 2004 1351.7421 1351.7221 1351.6738 1351.6932 1351.6584 1351.6535 1351.6507
#> Feb 2004 1328.3479 1328.1882 1328.0674 1328.1186 1328.0560 1328.0461 1328.0375
#> Mar 2004 1311.9434 1312.9349 1313.1932 1313.1397 1313.1871 1313.1957 1313.2052
#> Apr 2004 1344.9278 1345.1788 1345.4935 1345.4630 1345.4549 1345.4569 1345.4773
#> May 2004 1374.5806 1373.8249 1373.5671 1373.6570 1373.5792 1373.5634 1373.5424
#> Jun 2004 1400.1904 1398.9377 1398.1923 1398.1238 1398.2732 1398.2975 1398.2978
#> Jul 2004 1366.5007 1367.7943 1368.2595 1368.2376 1368.3434 1368.3514 1368.3493
#> Aug 2004 1359.8024 1359.7628 1359.7002 1359.7244 1359.6917 1359.6859 1359.6821
#> Sep 2004 1434.5554 1433.6632 1434.0737 1433.9964 1434.0585 1434.0695 1434.0865
#> Oct 2004 1414.0211 1413.6442 1413.4188 1413.5148 1413.4088 1413.3906 1413.3730
#> Nov 2004 1358.0450 1358.4136 1358.4384 1358.4340 1358.4168 1358.4158 1358.4172
#> Dec 2004 1353.8948 1354.4062 1354.5891 1354.5036 1354.5618 1354.5753 1354.5921
#> Jan 2005 1431.8151 1431.5087 1431.2561 1431.3615 1431.2304 1431.2108 1431.1924
#> Feb 2005 1426.4483 1426.6662 1426.6573 1426.6378 1426.6252 1426.6275 1426.6328
#> Mar 2005 1432.1178 1433.6508 1433.6644 1433.5958 1433.5964 1433.6026 1433.6268
#> Apr 2005 1285.0728 1285.1682 1285.7181 1285.7973 1285.6998 1285.6859 1285.6869
#> May 2005 1360.3374 1359.8584 1359.7585 1359.7448 1359.7735 1359.7767 1359.7733
#> Jun 2005 1453.4307 1450.8289 1449.4096 1449.3878 1449.5443 1449.5610 1449.5412
#> Jul 2005 1347.2317 1348.6669 1349.3189 1349.3843 1349.4715 1349.4634 1349.4395
#> Aug 2005 1395.9562 1396.2883 1396.3522 1396.2940 1396.3425 1396.3507 1396.3626
#> Sep 2005 1393.0565 1391.5687 1391.9670 1391.8988 1391.9585 1391.9680 1391.9834
#> Oct 2005 1378.8977 1378.5541 1378.3028 1378.3888 1378.2842 1378.2671 1378.2511
#> Nov 2005 1370.5961 1370.9319 1370.9792 1370.9558 1370.9411 1370.9429 1370.9484
#> Dec 2005 1392.9352 1393.2894 1393.3892 1393.3707 1393.3369 1393.3386 1393.3453
#> Jan 2006 1348.2688 1348.8134 1348.9354 1348.9249 1348.8719 1348.8727 1348.8795
#> Feb 2006 1422.5445 1423.1671 1423.2429 1423.2272 1423.1868 1423.1915 1423.2022
#> Mar 2006 1387.1976 1389.9026 1390.3625 1390.3131 1390.3014 1390.3091 1390.3259
#> Apr 2006 1440.2032 1440.2700 1440.9261 1441.0791 1440.8118 1440.7816 1440.7966
#> May 2006 1358.5464 1359.1641 1358.4186 1358.3559 1358.4646 1358.4764 1358.4597
#> Jun 2006 1426.6514 1419.1355 1416.4564 1416.5289 1416.6852 1416.6848 1416.6219
#> Jul 2006 1458.4585 1460.6437 1461.8530 1461.9228 1462.0838 1462.0773 1462.0542
#> Aug 2006 1429.1741 1429.9221 1430.2159 1430.1458 1430.2405 1430.2487 1430.2688
#> Sep 2006 1348.2605 1346.7709 1347.1263 1347.1440 1347.1618 1347.1542 1347.1587
#> Oct 2006 1405.4693 1405.8526 1406.0452 1406.0300 1406.0622 1406.0592 1406.0693
#> Nov 2006 1450.2860 1450.9835 1451.3273 1451.2704 1451.3303 1451.3348 1451.3549
#> Dec 2006 1448.8791 1449.1696 1449.3097 1449.3730 1449.3037 1449.2890 1449.2892
#> Jan 2007 1405.9910 1407.3067 1407.2480 1407.0458 1406.5238 1406.5682 1406.5832
#> Feb 2007 1437.0565 1437.9633 1438.1534 1438.1626 1438.1583 1438.1616 1438.1789
#> Mar 2007 1537.7781 1540.7759 1541.2538 1541.3025 1541.2386 1541.2306 1541.2397
#> Apr 2007 1386.9438 1387.8835 1388.8980 1388.9616 1388.8245 1388.8122 1388.8485
#> May 2007 1463.9835 1465.4063 1463.6761 1463.6708 1463.8290 1463.8319 1463.7787
#> Jun 2007 1508.1285 1495.0849 1490.9441 1491.2372 1491.3137 1491.2722 1491.1429
#> Jul 2007 1475.3093 1478.6379 1480.5013 1480.4964 1480.8209 1480.8345 1480.8276
#> Aug 2007 1519.0564 1520.4064 1520.8978 1520.8040 1520.9402 1520.9552 1520.9859
#> Sep 2007 1519.7752 1518.0206 1518.2906 1518.4238 1518.3627 1518.3380 1518.3306
#> Oct 2007 1498.9751 1500.0700 1500.7686 1500.6437 1500.8268 1500.8393 1500.8811
#> Nov 2007 1513.4534 1514.3595 1515.1375 1515.0331 1515.2070 1515.2096 1515.2503
#> Dec 2007 1526.5546 1526.9102 1527.4744 1527.5085 1527.5121 1527.4917 1527.5102
#> Jan 2008 1535.0664 1536.5731 1536.3717 1535.9558 1534.8352 1534.9098 1534.9284
#> Feb 2008 1511.7590 1512.8602 1513.5477 1513.4328 1513.5536 1513.5535 1513.5924
#> Mar 2008 1504.6419 1507.1021 1507.6373 1507.6248 1507.5569 1507.5243 1507.5399
#> Apr 2008 1541.5893 1545.7013 1545.9394 1546.2005 1545.7497 1545.8575 1545.9207
#> May 2008 1532.9245 1534.5450 1531.8380 1531.8158 1531.9810 1531.9435 1531.8315
#> Jun 2008 1426.9677 1411.0310 1405.8614 1406.6021 1407.0210 1406.8608 1406.5987
#> Jul 2008 1567.0176 1570.6521 1573.1628 1573.4719 1573.7019 1573.7775 1573.7855
#> Aug 2008 1494.4646 1495.0588 1495.5337 1495.4002 1495.4450 1495.4234 1495.4367
#> Sep 2008 1530.1660 1530.0435 1531.0691 1530.7721 1530.9782 1530.9859 1531.0441
#> Oct 2008 1512.1881 1513.3443 1514.5255 1514.1702 1514.4357 1514.4488 1514.5300
#> Nov 2008 1533.6670 1533.7410 1534.5587 1534.4405 1534.4982 1534.4669 1534.5133
#> Dec 2008 1578.1649 1579.4278 1580.9228 1580.5812 1580.8467 1580.8633 1580.9631
#> Jan 2009 1593.8867 1594.9348 1594.3390 1593.7837 1591.9434 1592.0382 1592.0550
#> Feb 2009 1460.1899 1461.0720 1462.1583 1462.1400 1462.3010 1462.2983 1462.3545
#> Mar 2009 1607.0406 1609.8234 1611.3621 1611.4946 1611.6800 1611.6677 1611.7031
#> Apr 2009 1588.3763 1595.2352 1593.3611 1594.2721 1593.4482 1593.6720 1593.7566
#> May 2009 1644.0373 1646.1945 1643.2848 1643.7001 1643.9555 1643.8785 1643.6834
#> Jun 2009 1521.6141 1502.4204 1495.6622 1497.0216 1497.9462 1497.6059 1497.1202
#> Jul 2009 1541.7802 1546.3564 1548.4456 1549.4056 1549.4870 1549.5796 1549.5450
#> Aug 2009 1585.5545 1586.4611 1586.4387 1582.9108 1583.2086 1583.1683 1583.0985
#> Sep 2009 1550.7290 1549.5251 1550.6766 1551.1017 1550.6889 1550.6780 1550.6503
#> Oct 2009 1613.1836 1613.3063 1615.8752 1615.7923 1616.2731 1616.4305 1616.4056
#> Nov 2009 1578.9604 1579.0633 1581.0262 1580.3487 1580.6455 1580.6033 1581.5843
#> Dec 2009 1534.9231 1535.7010 1537.8690 1537.5124 1537.7057 1537.7125 1537.6331
#> Jan 2010 1616.4380 1617.2216 1617.1556 1616.6954 1614.7711 1614.8707 1614.8034
#> Feb 2010 1538.4730 1539.9630 1541.4056 1541.4733 1541.6499 1541.6402 1541.7767
#> Mar 2010 1528.3599 1531.6789 1533.0654 1533.3536 1533.6497 1533.6454 1533.6625
#> Apr 2010 1512.2343 1522.6683 1518.4648 1520.1442 1519.0048 1519.2858 1519.2761
#> May 2010 1535.3488 1539.4956 1535.7694 1536.6932 1537.0832 1536.9235 1536.6368
#> Jun 2010 1582.9913 1557.2136 1547.2442 1549.6126 1550.9963 1550.3849 1549.6031
#> Jul 2010 1562.9408 1568.3336 1572.8527 1574.9117 1574.7653 1574.8107 1574.6836
#> Aug 2010 1550.7990 1552.6095 1552.3427 1543.6344 1544.3731 1544.2676 1544.0841
#> Sep 2010 1575.9360 1573.4225 1574.9139 1576.2910 1574.5641 1574.4605 1574.2989
#> Oct 2010 1551.2312 1550.4978 1554.6083 1554.8919 1555.7034 1556.8433 1556.7134
#> Nov 2010 1538.0191 1538.4423 1541.3958 1540.1577 1540.7539 1540.6196 1542.9313
#> Dec 2010 1516.1223 1516.6119 1519.1479 1518.8542 1519.0319 1518.9550 1518.6295
#> Jan 2011 1550.5430 1551.3888 1551.4821 1551.1915 1549.2606 1549.3153 1549.1289
#> Feb 2011 1546.3603 1548.4059 1549.8137 1550.1592 1550.3740 1550.2869 1550.4829
#> Mar 2011 1506.1355 1509.8020 1510.6437 1511.4591 1511.8137 1511.7295 1511.6433
#> Apr 2011 1570.8999 1583.4473 1576.7620 1579.3833 1578.1347 1578.3237 1578.1557
#> May 2011 1497.1461 1503.5004 1499.4591 1501.0574 1501.7217 1501.4461 1501.0645
#> Jun 2011 1505.0786 1477.1101 1465.5708 1468.4964 1469.9984 1469.1850 1468.2319
#> Jul 2011 1525.3929 1532.1496 1538.6359 1541.5647 1541.4404 1541.3408 1541.0789
#> Aug 2011 1500.8471 1503.5196 1502.4533 1487.9964 1489.1348 1488.9076 1488.5394
#> Sep 2011 1491.8215 1487.2195 1488.6540 1491.2701 1487.6282 1487.3808 1487.0178
#> Oct 2011 1486.5316 1485.2957 1491.0320 1491.8409 1493.0978 1495.9616 1495.6702
#> Nov 2011 1497.8850 1497.9422 1501.5421 1499.9923 1500.8198 1500.4987 1504.5766
#> Dec 2011 1521.5237 1521.0340 1523.7566 1523.7666 1523.8483 1523.5953 1522.8983
#> Jan 2012 1482.0599 1483.1427 1484.0293 1483.9328 1482.5756 1482.5157 1482.1853
#> Feb 2012 1506.9061 1509.4143 1510.6161 1511.0424 1511.3513 1511.1176 1511.3429
#> Mar 2012 1539.5438 1543.4139 1543.0714 1544.2482 1544.4815 1544.2126 1543.9585
#> Apr 2012 1494.7298 1508.9912 1500.4473 1503.5329 1502.0859 1502.1330 1501.7879
#> May 2012 1532.5098 1540.6770 1535.8665 1537.8858 1538.6928 1538.2081 1537.7307
#> Jun 2012 NaN 1635.4736 1620.1942 1624.2901 1626.0377 1624.8017 1623.5500
#> Jul 2012 NaN NaN 1419.1777 1422.5483 1422.4628 1422.2286 1421.9200
#> Aug 2012 NaN NaN NaN 1556.9992 1558.3386 1557.8797 1557.3472
#> Sep 2012 NaN NaN NaN NaN 1537.8778 1537.3638 1536.8159
#> Oct 2012 NaN NaN NaN NaN NaN 1511.4606 1511.1342
#> Nov 2012 NaN NaN NaN NaN NaN NaN 1517.5408
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 36 Series 37 Series 38 Series 39 Series 40 Series 41 Series 42
#> Apr 1982 489.8628 489.8673 489.8701 489.7838 489.6872 489.6839 489.6763
#> May 1982 478.2626 478.2592 478.2578 478.3595 478.2847 478.2781 478.2796
#> Jun 1982 486.6852 486.6943 486.6988 486.7534 486.7517 486.7584 486.7504
#> Jul 1982 485.0989 485.1015 485.1029 485.1508 485.1485 485.1497 485.1471
#> Aug 1982 491.1237 491.1165 491.1131 491.1533 491.1467 491.1393 491.1449
#> Sep 1982 496.9717 496.9850 496.9914 497.0346 497.0701 497.0826 497.0722
#> Oct 1982 481.0326 481.0211 481.0155 481.0563 481.0568 481.0461 481.0556
#> Nov 1982 485.8172 485.8197 485.8209 485.8782 485.8986 485.9011 485.8993
#> Dec 1982 488.2982 488.3124 488.3193 488.3897 488.4250 488.4383 488.4270
#> Jan 1983 445.3999 445.3761 445.3645 444.9488 444.9584 444.9378 444.9579
#> Feb 1983 504.3239 504.3232 504.3229 504.3798 504.3962 504.3956 504.3964
#> Mar 1983 513.3911 513.3968 513.4004 513.2409 512.9717 512.9673 512.9531
#> Apr 1983 560.8180 560.8037 560.7953 560.7871 561.0117 561.0148 561.0368
#> May 1983 481.5144 481.5238 481.5286 481.6326 481.5698 481.5750 481.5660
#> Jun 1983 507.2158 507.2265 507.2318 507.2838 507.2824 507.2907 507.2814
#> Jul 1983 499.3793 499.3664 499.3603 499.3879 499.3706 499.3577 499.3679
#> Aug 1983 510.1415 510.1508 510.1554 510.2005 510.2122 510.2200 510.2122
#> Sep 1983 516.1261 516.1406 516.1476 516.1769 516.2167 516.2305 516.2194
#> Oct 1983 515.2405 515.2267 515.2199 515.2505 515.2492 515.2365 515.2480
#> Nov 1983 528.7630 528.7646 528.7652 528.8859 528.9366 528.9393 528.9388
#> Dec 1983 531.2988 531.2987 531.2987 531.3492 531.3695 531.3698 531.3702
#> Jan 1984 482.0928 482.0820 482.0767 481.6876 481.7125 481.7038 481.7135
#> Feb 1984 534.3241 534.3282 534.3303 534.3871 534.4114 534.4156 534.4125
#> Mar 1984 555.2391 555.2277 555.2211 555.1221 555.1432 555.1452 555.1585
#> Apr 1984 521.9041 521.8937 521.8895 521.7906 521.6412 521.6215 521.6242
#> May 1984 560.0520 560.0776 560.0903 560.2087 560.1515 560.1715 560.1491
#> Jun 1984 553.1775 553.1745 553.1732 553.2084 553.1924 553.1883 553.1902
#> Jul 1984 574.8958 574.8955 574.8954 574.9142 574.9175 574.9166 574.9169
#> Aug 1984 564.5790 564.5925 564.5991 564.6358 564.6551 564.6669 564.6559
#> Sep 1984 570.7276 570.7117 570.7039 570.6868 570.6991 570.6854 570.6993
#> Oct 1984 578.3588 578.3731 578.3800 578.4202 578.4515 578.4647 578.4534
#> Nov 1984 578.7835 578.7839 578.7839 578.9921 579.0868 579.0902 579.0915
#> Dec 1984 571.9314 571.9144 571.9062 571.9266 571.9277 571.9127 571.9270
#> Jan 1985 594.2933 594.3004 594.3036 593.9624 594.0104 594.0184 594.0138
#> Feb 1985 610.6885 610.6887 610.6887 610.7339 610.7580 610.7587 610.7592
#> Mar 1985 605.5297 605.5030 605.4899 605.3142 605.1444 605.1210 605.1402
#> Apr 1985 629.7142 629.7198 629.7230 629.6472 629.5914 629.5916 629.5844
#> May 1985 661.3749 661.4019 661.4154 661.5211 661.4678 661.4892 661.4658
#> Jun 1985 624.0563 624.0354 624.0253 624.0418 624.0086 623.9883 624.0050
#> Jul 1985 633.3903 633.4076 633.4160 633.4264 633.4605 633.4766 633.4630
#> Aug 1985 666.9566 666.9574 666.9578 666.9716 666.9840 666.9845 666.9842
#> Sep 1985 609.4882 609.4877 609.4874 609.4641 609.4939 609.4947 609.4961
#> Oct 1985 660.6002 660.6146 660.6215 660.6363 660.6639 660.6772 660.6660
#> Nov 1985 651.6874 651.6670 651.6567 651.9483 652.0707 652.0568 652.0760
#> Dec 1985 636.8596 636.8575 636.8564 636.8587 636.8682 636.8670 636.8690
#> Jan 1986 658.9756 658.9882 658.9942 658.7777 658.8195 658.8322 658.8229
#> Feb 1986 652.3863 652.3867 652.3869 652.4012 652.4200 652.4210 652.4213
#> Mar 1986 612.2502 612.2291 612.2212 611.9613 611.4174 611.3701 611.3684
#> Apr 1986 657.8073 657.8124 657.8130 657.8484 658.1799 658.2069 658.2164
#> May 1986 726.7702 726.7760 726.7791 726.8345 726.7633 726.7656 726.7596
#> Jun 1986 603.9397 603.9346 603.9321 603.9455 603.9327 603.9272 603.9313
#> Jul 1986 703.0158 703.0356 703.0452 703.0267 703.0683 703.0872 703.0720
#> Aug 1986 676.9501 676.9322 676.9235 676.9087 676.9006 676.8842 676.8992
#> Sep 1986 711.1213 711.1390 711.1475 711.1220 711.1763 711.1940 711.1810
#> Oct 1986 689.9896 690.0042 690.0113 690.0130 690.0399 690.0536 690.0422
#> Nov 1986 656.2453 656.2062 656.1868 656.4688 656.5773 656.5467 656.5813
#> Dec 1986 714.1613 714.1789 714.1875 714.1913 714.2187 714.2363 714.2219
#> Jan 1987 720.6842 720.6818 720.6806 720.5820 720.5985 720.5975 720.6004
#> Feb 1987 708.6032 708.6043 708.6047 708.6016 708.6215 708.6234 708.6234
#> Mar 1987 702.4222 702.4132 702.4078 702.3134 702.3562 702.3589 702.3719
#> Apr 1987 707.8744 707.8908 707.9007 707.7905 707.4935 707.4862 707.4597
#> May 1987 710.5299 710.5112 710.5022 710.4968 710.4292 710.4104 710.4250
#> Jun 1987 714.7731 714.7780 714.7806 714.7849 714.8193 714.8226 714.8182
#> Jul 1987 773.4102 773.4348 773.4467 773.4169 773.4713 773.4954 773.4766
#> Aug 1987 704.7237 704.7067 704.6985 704.6705 704.6237 704.6078 704.6218
#> Sep 1987 721.0989 721.1150 721.1227 721.0981 721.1413 721.1573 721.1455
#> Oct 1987 744.5860 744.5821 744.5801 744.5534 744.5523 744.5489 744.5525
#> Nov 1987 683.5510 683.5284 683.5169 683.8098 683.9318 683.9161 683.9373
#> Dec 1987 750.9933 751.0135 751.0233 751.0130 751.0285 751.0485 751.0314
#> Jan 1988 754.5150 754.4936 754.4831 754.4364 754.4110 754.3918 754.4098
#> Feb 1988 738.1182 738.1271 738.1314 738.1146 738.1296 738.1384 738.1319
#> Mar 1988 757.8329 757.8529 757.8642 757.7282 757.4272 757.4267 757.3995
#> Apr 1988 788.1538 788.1511 788.1489 788.1607 788.2986 788.3058 788.3141
#> May 1988 744.8957 744.8957 744.8957 744.8875 744.8611 744.8604 744.8604
#> Jun 1988 757.8258 757.8101 757.8027 757.7733 757.8538 757.8375 757.8496
#> Jul 1988 756.3050 756.2922 756.2858 756.2167 756.2200 756.2094 756.2209
#> Aug 1988 748.9244 748.9461 748.9568 748.9490 748.8515 748.8697 748.8514
#> Sep 1988 777.1282 777.1435 777.1508 777.1440 777.1692 777.1846 777.1734
#> Oct 1988 773.3022 773.2785 773.2670 773.2334 773.2139 773.1925 773.2122
#> Nov 1988 785.3495 785.3498 785.3497 785.6140 785.7384 785.7431 785.7452
#> Dec 1988 809.8928 809.8956 809.8969 809.8825 809.8767 809.8806 809.8776
#> Jan 1989 753.6210 753.6205 753.6202 753.6008 753.5945 753.5942 753.5950
#> Feb 1989 768.4636 768.4690 768.4716 768.4580 768.4630 768.4683 768.4644
#> Mar 1989 793.4175 793.4421 793.4563 793.3231 792.9265 792.9216 792.8854
#> Apr 1989 787.1216 787.0981 787.0847 787.1321 787.4246 787.4252 787.4581
#> May 1989 770.1674 770.1876 770.1974 770.2055 770.2255 770.2443 770.2283
#> Jun 1989 816.0091 815.9722 815.9545 815.9031 816.0374 816.0006 816.0295
#> Jul 1989 799.0641 799.0543 799.0495 798.9988 798.9949 798.9865 798.9951
#> Aug 1989 833.5157 833.5377 833.5487 833.5307 833.3170 833.3336 833.3139
#> Sep 1989 822.8170 822.8097 822.8061 822.8044 822.7842 822.7790 822.7860
#> Oct 1989 784.4054 784.4048 784.4044 784.3995 784.4091 784.4090 784.4101
#> Nov 1989 827.6330 827.6389 827.6416 827.7993 827.8806 827.8887 827.8855
#> Dec 1989 819.1121 819.0952 819.0870 819.0654 819.0408 819.0267 819.0396
#> Jan 1990 804.4677 804.4886 804.4987 804.5040 804.5230 804.5421 804.5255
#> Feb 1990 813.0878 813.0953 813.0990 813.0922 813.0975 813.1045 813.0987
#> Mar 1990 854.4241 854.4226 854.4196 854.5060 854.8809 854.9058 854.9234
#> Apr 1990 793.1702 793.1738 793.1776 793.0736 792.7246 792.7034 792.6859
#> May 1990 820.5571 820.5795 820.5903 820.6050 820.6361 820.6569 820.6392
#> Jun 1990 864.5949 864.5186 864.4817 864.3991 864.5314 864.4581 864.5189
#> Jul 1990 792.2117 792.2244 792.2306 792.2172 792.2215 792.2326 792.2222
#> Aug 1990 874.4535 874.4740 874.4844 874.4633 874.1746 874.1885 874.1690
#> Sep 1990 813.2344 813.2042 813.1894 813.1814 813.1237 813.0977 813.1234
#> Oct 1990 804.0030 804.0261 804.0373 804.0654 804.1098 804.1319 804.1137
#> Nov 1990 832.7764 832.7893 832.7955 832.8400 832.8814 832.8943 832.8846
#> Dec 1990 823.9032 823.8868 823.8787 823.8724 823.8628 823.8492 823.8622
#> Jan 1991 821.5023 821.5233 821.5335 821.5547 821.5891 821.6089 821.5924
#> Feb 1991 833.0227 833.0318 833.0362 833.0454 833.0657 833.0746 833.0677
#> Mar 1991 814.2775 814.2596 814.2533 814.1288 813.7081 813.6637 813.6616
#> Apr 1991 832.6788 832.6959 832.7016 832.8272 833.2720 833.3173 833.3215
#> May 1991 827.5566 827.5824 827.5949 827.6179 827.6573 827.6816 827.6612
#> Jun 1991 778.9058 778.8160 778.7725 778.6800 778.7761 778.6909 778.7629
#> Jul 1991 882.1976 882.2253 882.2390 882.2485 882.2478 882.2711 882.2473
#> Aug 1991 899.4961 899.4955 899.4956 899.4540 899.1293 899.1239 899.1215
#> Sep 1991 804.5989 804.5914 804.5875 804.5974 804.5661 804.5611 804.5685
#> Oct 1991 866.1133 866.1411 866.1545 866.1865 866.2387 866.2654 866.2435
#> Nov 1991 856.8333 856.8247 856.8204 856.8211 856.8293 856.8222 856.8299
#> Dec 1991 842.4757 842.4808 842.4832 842.4950 842.5161 842.5220 842.5180
#> Jan 1992 872.1136 872.1384 872.1505 872.1740 872.2068 872.2295 872.2093
#> Feb 1992 887.1792 887.1712 887.1672 887.1653 887.1720 887.1653 887.1724
#> Mar 1992 831.3350 831.3323 831.3293 831.4033 831.6817 831.6987 831.7128
#> Apr 1992 878.3637 878.3861 878.3987 878.3445 878.0954 878.0968 878.0670
#> May 1992 889.4937 889.4742 889.4647 889.4517 889.4418 889.4246 889.4410
#> Jun 1992 845.3483 845.3046 845.2834 845.2368 845.3637 845.3218 845.3567
#> Jul 1992 873.2263 873.2453 873.2549 873.2510 873.2201 873.2337 873.2160
#> Aug 1992 855.8096 855.7899 855.7805 855.7353 855.4746 855.4538 855.4679
#> Sep 1992 881.9116 881.9253 881.9317 881.9591 881.9475 881.9622 881.9522
#> Oct 1992 910.3521 910.3594 910.3628 910.3754 910.4043 910.4121 910.4069
#> Nov 1992 885.7562 885.7475 885.7432 885.7418 885.7501 885.7431 885.7507
#> Dec 1992 864.6126 864.6390 864.6517 864.6791 864.7280 864.7531 864.7321
#> Jan 1993 910.3977 910.3731 910.3612 910.3384 910.3057 910.2822 910.3014
#> Feb 1993 878.4516 878.4593 878.4630 878.4730 878.4971 878.5048 878.4989
#> Mar 1993 887.9685 887.9879 887.9958 888.0788 888.3459 888.3808 888.3753
#> Apr 1993 884.5547 884.5754 884.5869 884.5444 884.3399 884.3430 884.3167
#> May 1993 916.4321 916.4122 916.4024 916.3887 916.3733 916.3555 916.3721
#> Jun 1993 911.7287 911.7038 911.6917 911.6672 911.7516 911.7278 911.7479
#> Jul 1993 858.4239 858.4079 858.4007 858.3650 858.2797 858.2599 858.2699
#> Aug 1993 856.3945 856.4039 856.4085 856.4091 856.3289 856.3383 856.3307
#> Sep 1993 908.9435 908.9498 908.9528 908.9655 908.9403 908.9468 908.9423
#> Oct 1993 900.3041 900.2882 900.2805 900.2706 900.2640 900.2503 900.2636
#> Nov 1993 883.5406 883.5562 883.5637 883.5798 883.6084 883.6235 883.6113
#> Dec 1993 894.4269 894.4516 894.4636 894.4871 894.5298 894.5533 894.5336
#> Jan 1994 888.5309 888.5062 888.4945 888.4656 888.4146 888.3902 888.4089
#> Feb 1994 907.8830 907.8872 907.8892 907.8936 907.9096 907.9140 907.9109
#> Mar 1994 932.4260 932.4493 932.4627 932.3869 932.0606 932.0576 932.0238
#> Apr 1994 917.5811 917.5716 917.5645 917.6642 918.0212 918.0369 918.0604
#> May 1994 911.3492 911.3511 911.3520 911.3536 911.3575 911.3596 911.3582
#> Jun 1994 943.4145 943.4127 943.4121 943.4112 943.4405 943.4382 943.4391
#> Jul 1994 869.9563 869.9125 869.8917 869.8336 869.7190 869.6738 869.7066
#> Aug 1994 928.7903 928.8310 928.8505 928.8979 929.0048 929.0468 929.0159
#> Sep 1994 954.2923 954.2913 954.2907 954.2874 954.2484 954.2469 954.2477
#> Oct 1994 954.6758 954.6570 954.6478 954.6323 954.6136 954.5969 954.6125
#> Nov 1994 910.6434 910.6595 910.6672 910.6805 910.7010 910.7163 910.7035
#> Dec 1994 956.7439 956.7416 956.7403 956.7382 956.7413 956.7398 956.7422
#> Jan 1995 887.0616 887.0576 887.0560 887.0424 887.0036 886.9978 886.9993
#> Feb 1995 933.8872 933.8877 933.8880 933.8867 933.8886 933.8894 933.8890
#> Mar 1995 955.6450 955.6645 955.6723 955.7630 956.0664 956.1044 956.1005
#> Apr 1995 974.2900 974.2567 974.2415 974.1617 973.8571 973.8055 973.8220
#> May 1995 926.7414 926.7654 926.7771 926.7955 926.8177 926.8399 926.8203
#> Jun 1995 944.6372 944.6557 944.6660 944.6790 944.6857 944.7007 944.6829
#> Jul 1995 965.2473 965.2003 965.1771 965.1250 965.0338 964.9890 965.0274
#> Aug 1995 1012.2850 1012.3321 1012.3547 1012.4190 1012.6271 1012.6773 1012.6424
#> Sep 1995 930.6810 930.6482 930.6322 930.5932 930.5156 930.4836 930.5096
#> Oct 1995 938.5127 938.5156 938.5170 938.5173 938.5129 938.5158 938.5134
#> Nov 1995 967.5107 967.5299 967.5391 967.5527 967.5677 967.5857 967.5702
#> Dec 1995 984.5598 984.5286 984.5133 984.4846 984.4453 984.4172 984.4429
#> Jan 1996 970.7700 970.7860 970.7944 970.7956 970.7679 970.7801 970.7646
#> Feb 1996 974.6877 974.6938 974.6967 974.6978 974.6973 974.7033 974.6983
#> Mar 1996 963.5787 963.5479 963.5321 963.5348 963.6151 963.5955 963.6258
#> Apr 1996 960.4016 960.4192 960.4274 960.4463 960.3732 960.3794 960.3622
#> May 1996 968.3115 968.3348 968.3461 968.3617 968.3794 968.4009 968.3818
#> Jun 1996 974.7689 974.7383 974.7264 974.6946 974.6341 974.6012 974.6198
#> Jul 1996 958.1653 958.1853 958.1935 958.2101 958.2415 958.2629 958.2510
#> Aug 1996 1035.3892 1035.4093 1035.4186 1035.4583 1035.6374 1035.6626 1035.6495
#> Sep 1996 907.9084 907.8749 907.8587 907.8176 907.7377 907.7050 907.7313
#> Oct 1996 948.9598 948.9845 948.9965 949.0139 949.0311 949.0538 949.0335
#> Nov 1996 982.6903 982.6843 982.6814 982.6725 982.6548 982.6493 982.6540
#> Dec 1996 965.5856 965.5792 965.5758 965.5666 965.5499 965.5443 965.5498
#> Jan 1997 975.0846 975.0958 975.1019 975.1028 975.0830 975.0914 975.0800
#> Feb 1997 1002.1982 1002.1949 1002.1930 1002.1847 1002.1685 1002.1659 1002.1688
#> Mar 1997 985.2738 985.2494 985.2402 985.0702 984.4946 984.4353 984.4331
#> Apr 1997 945.6164 945.6253 945.6251 945.8060 946.3579 946.4011 946.4184
#> May 1997 1014.5727 1014.5691 1014.5668 1014.5580 1014.5418 1014.5392 1014.5428
#> Jun 1997 893.0296 893.0329 893.0402 893.0361 893.0035 892.9973 892.9827
#> Jul 1997 1007.8432 1007.8743 1007.8860 1007.9265 1008.0244 1008.0628 1008.0489
#> Aug 1997 982.4253 982.4124 982.4065 982.4125 982.5200 982.5122 982.5238
#> Sep 1997 1014.6175 1014.6083 1014.6042 1014.5807 1014.5178 1014.5063 1014.5117
#> Oct 1997 995.9959 996.0192 996.0307 996.0449 996.0546 996.0755 996.0558
#> Nov 1997 1014.3615 1014.3277 1014.3112 1014.2769 1014.2225 1014.1912 1014.2183
#> Dec 1997 978.7575 978.7762 978.7850 978.7952 978.8013 978.8187 978.8037
#> Jan 1998 1067.5770 1067.5582 1067.5494 1067.5277 1067.4868 1067.4685 1067.4821
#> Feb 1998 989.9529 989.9498 989.9475 989.9385 989.9216 989.9194 989.9228
#> Mar 1998 987.8157 987.8088 987.8025 987.8800 988.1949 988.2130 988.2339
#> Apr 1998 1028.4131 1028.4299 1028.4378 1028.4011 1028.1201 1028.1122 1028.0887
#> May 1998 999.1431 999.1123 999.0961 999.0635 999.0177 998.9907 999.0174
#> Jun 1998 914.1949 914.2263 914.2499 914.2678 914.2565 914.2717 914.2287
#> Jul 1998 1069.6224 1069.6612 1069.6754 1069.7298 1069.8665 1069.9158 1069.9001
#> Aug 1998 1027.9234 1027.9038 1027.8955 1027.8867 1027.9334 1027.9163 1027.9306
#> Sep 1998 1015.5596 1015.5587 1015.5590 1015.5447 1015.5012 1015.4973 1015.4955
#> Oct 1998 1052.5166 1052.5103 1052.5074 1052.4957 1052.4701 1052.4634 1052.4675
#> Nov 1998 1024.6316 1024.6235 1024.6193 1024.6067 1024.5804 1024.5725 1024.5789
#> Dec 1998 1027.6163 1027.6336 1027.6415 1027.6507 1027.6546 1027.6709 1027.6571
#> Jan 1999 1102.5602 1102.5121 1102.4888 1102.4469 1102.3892 1102.3451 1102.3834
#> Feb 1999 1025.5175 1025.5142 1025.5116 1025.5031 1025.4862 1025.4842 1025.4881
#> Mar 1999 1042.3338 1042.3590 1042.3711 1042.3273 1042.1238 1042.1330 1042.1052
#> Apr 1999 1041.1276 1041.1408 1041.1433 1041.2482 1041.5411 1041.5719 1041.5761
#> May 1999 1043.4194 1043.3858 1043.3678 1043.3334 1043.2862 1043.2572 1043.2871
#> Jun 1999 965.6949 965.7307 965.7586 965.7815 965.7738 965.7897 965.7390
#> Jul 1999 1088.7586 1088.7683 1088.7671 1088.7990 1088.9113 1088.9357 1088.9474
#> Aug 1999 1056.9984 1056.9993 1057.0019 1057.0022 1057.0161 1057.0141 1057.0090
#> Sep 1999 1085.8160 1085.8261 1085.8321 1085.8307 1085.8113 1085.8176 1085.8060
#> Oct 1999 1085.7162 1085.6790 1085.6612 1085.6241 1085.5663 1085.5310 1085.5600
#> Nov 1999 1076.3438 1076.3601 1076.3677 1076.3757 1076.3761 1076.3907 1076.3772
#> Dec 1999 1073.8015 1073.8221 1073.8314 1073.8443 1073.8550 1073.8746 1073.8582
#> Jan 2000 1081.5165 1081.4685 1081.4451 1081.4042 1081.3494 1081.3057 1081.3443
#> Feb 2000 1072.2518 1072.2574 1072.2590 1072.2596 1072.2566 1072.2630 1072.2599
#> Mar 2000 1069.8412 1069.8610 1069.8669 1069.9785 1070.3620 1070.4076 1070.4091
#> Apr 2000 1102.8505 1102.8083 1102.7877 1102.6787 1102.3221 1102.2625 1102.2868
#> May 2000 1069.3166 1069.3389 1069.3481 1069.3626 1069.3807 1069.4029 1069.3873
#> Jun 2000 1256.1197 1256.1653 1256.1999 1256.2316 1256.2303 1256.2517 1256.1892
#> Jul 2000 897.4287 897.4137 897.4011 897.4012 897.4425 897.4378 897.4664
#> Aug 2000 1177.2918 1177.3231 1177.3409 1177.3623 1177.3790 1177.4029 1177.3716
#> Sep 2000 1157.8681 1157.8570 1157.8530 1157.8394 1157.8136 1157.8014 1157.8067
#> Oct 2000 1102.9064 1102.8974 1102.8935 1102.8824 1102.8624 1102.8534 1102.8592
#> Nov 2000 1093.5570 1093.5640 1093.5676 1093.5689 1093.5604 1093.5675 1093.5603
#> Dec 2000 1151.9581 1151.9173 1151.8969 1151.8606 1151.8096 1151.7736 1151.8067
#> Jan 2001 1113.9621 1113.9767 1113.9836 1113.9963 1114.0132 1114.0274 1114.0153
#> Feb 2001 1140.1916 1140.1899 1140.1881 1140.1848 1140.1780 1140.1779 1140.1806
#> Mar 2001 1214.1984 1214.1898 1214.1818 1214.2722 1214.6303 1214.6500 1214.6751
#> Apr 2001 1106.7391 1106.7279 1106.7225 1106.6370 1106.3446 1106.3162 1106.3165
#> May 2001 1146.7301 1146.7508 1146.7590 1146.7739 1146.7926 1146.8126 1146.7991
#> Jun 2001 1101.5430 1101.5511 1101.5638 1101.5679 1101.5439 1101.5357 1101.5115
#> Jul 2001 1147.4587 1147.4740 1147.4739 1147.4947 1147.5527 1147.5730 1147.5827
#> Aug 2001 1121.6220 1121.6509 1121.6672 1121.6887 1121.7061 1121.7271 1121.6988
#> Sep 2001 1124.1390 1124.1005 1124.0841 1124.0524 1124.0071 1123.9728 1123.9982
#> Oct 2001 1155.8877 1155.9100 1155.9210 1155.9358 1155.9468 1155.9653 1155.9461
#> Nov 2001 1190.5467 1190.5473 1190.5481 1190.5419 1190.5168 1190.5182 1190.5151
#> Dec 2001 1209.4884 1209.4477 1209.4279 1209.3913 1209.3386 1209.3031 1209.3349
#> Jan 2002 1173.1358 1173.1510 1173.1592 1173.1712 1173.1844 1173.2012 1173.1862
#> Feb 2002 1174.1889 1174.1876 1174.1874 1174.1851 1174.1792 1174.1815 1174.1805
#> Mar 2002 1186.2547 1186.2221 1186.2105 1186.0046 1185.3035 1185.2313 1185.2284
#> Apr 2002 1195.6924 1195.6988 1195.6975 1195.9137 1196.7106 1196.7750 1196.8021
#> May 2002 1223.0209 1223.0414 1223.0512 1223.0668 1223.0853 1223.1068 1223.0895
#> Jun 2002 1220.0063 1219.9967 1219.9867 1219.9598 1219.8853 1219.8384 1219.8605
#> Jul 2002 1119.0387 1119.0865 1119.1041 1119.1419 1119.1960 1119.2417 1119.2186
#> Aug 2002 1251.4666 1251.4615 1251.4615 1251.4551 1251.4366 1251.4291 1251.4273
#> Sep 2002 1165.0093 1165.0014 1165.0015 1165.0009 1165.0051 1165.0052 1165.0016
#> Oct 2002 1235.0131 1235.0365 1235.0486 1235.0656 1235.0806 1235.1017 1235.0800
#> Nov 2002 1331.1086 1331.0661 1331.0475 1331.0059 1330.9314 1330.8962 1330.9244
#> Dec 2002 1249.6574 1249.6472 1249.6435 1249.6344 1249.6189 1249.6129 1249.6174
#> Jan 2003 1249.4588 1249.4781 1249.4894 1249.5050 1249.5203 1249.5422 1249.5215
#> Feb 2003 1250.8313 1250.8304 1250.8320 1250.8308 1250.8245 1250.8283 1250.8241
#> Mar 2003 1300.2793 1300.2295 1300.2047 1300.2785 1300.6512 1300.6406 1300.6943
#> Apr 2003 1289.9816 1289.9944 1290.0045 1289.9452 1289.6992 1289.6974 1289.6719
#> May 2003 1297.0548 1297.0474 1297.0443 1297.0337 1297.0170 1297.0144 1297.0180
#> Jun 2003 1283.8281 1283.8671 1283.8661 1283.8635 1283.8100 1283.7834 1283.8000
#> Jul 2003 1231.6397 1231.6927 1231.7156 1231.7545 1231.8019 1231.8551 1231.8186
#> Aug 2003 1299.4889 1299.4424 1299.4227 1299.3822 1299.3190 1299.2765 1299.3077
#> Sep 2003 1303.9995 1304.0193 1304.0351 1304.0667 1304.1291 1304.1633 1304.1304
#> Oct 2003 1341.9244 1341.9535 1341.9688 1341.9901 1342.0061 1342.0330 1342.0056
#> Nov 2003 1374.0432 1373.9605 1373.9223 1373.8460 1373.7189 1373.6460 1373.7063
#> Dec 2003 1299.9925 1300.0183 1300.0323 1300.0526 1300.0687 1300.0947 1300.0690
#> Jan 2004 1351.6352 1351.6210 1351.6162 1351.6025 1351.5712 1351.5614 1351.5666
#> Feb 2004 1328.0026 1327.9762 1327.9653 1327.9415 1327.8971 1327.8761 1327.8914
#> Mar 2004 1313.2493 1313.2644 1313.2736 1313.4133 1313.8937 1313.9464 1313.9421
#> Apr 2004 1345.5121 1345.5039 1345.5171 1345.4550 1345.2433 1345.2497 1345.2237
#> May 2004 1373.4656 1373.4305 1373.4126 1373.3735 1373.3137 1373.2840 1373.3117
#> Jun 2004 1398.3375 1398.4375 1398.4474 1398.4732 1398.4332 1398.4275 1398.4364
#> Jul 2004 1368.3897 1368.4135 1368.4237 1368.4323 1368.4245 1368.4498 1368.4289
#> Aug 2004 1359.6609 1359.6461 1359.6406 1359.6256 1359.5922 1359.5785 1359.5861
#> Sep 2004 1434.1297 1434.1459 1434.1599 1434.1925 1434.2643 1434.2972 1434.2648
#> Oct 2004 1413.3054 1413.2601 1413.2395 1413.1985 1413.1285 1413.0866 1413.1185
#> Nov 2004 1358.4171 1358.4104 1358.4098 1358.3998 1358.3611 1358.3579 1358.3541
#> Dec 2004 1354.6483 1354.6770 1354.6930 1354.7165 1354.7339 1354.7629 1354.7321
#> Jan 2005 1431.1237 1431.0705 1431.0481 1431.0036 1430.9302 1430.8883 1430.9214
#> Feb 2005 1426.6465 1426.6454 1426.6487 1426.6489 1426.6355 1426.6430 1426.6342
#> Mar 2005 1433.6683 1433.6842 1433.7059 1433.5322 1432.8336 1432.8133 1432.7491
#> Apr 2005 1285.6768 1285.6046 1285.5930 1285.7897 1286.6732 1286.7291 1286.7867
#> May 2005 1359.7548 1359.7643 1359.7679 1359.7659 1359.7608 1359.7785 1359.7744
#> Jun 2005 1449.5358 1449.6503 1449.6494 1449.6677 1449.5886 1449.5460 1449.5731
#> Jul 2005 1349.4050 1349.4072 1349.3933 1349.3629 1349.2850 1349.2577 1349.2656
#> Aug 2005 1396.3884 1396.4062 1396.4167 1396.4311 1396.4346 1396.4563 1396.4423
#> Sep 2005 1392.0164 1392.0275 1392.0390 1392.0714 1392.1483 1392.1824 1392.1570
#> Oct 2005 1378.1864 1378.1424 1378.1229 1378.0839 1378.0113 1377.9754 1378.0078
#> Nov 2005 1370.9638 1370.9614 1370.9643 1370.9612 1370.9317 1370.9356 1370.9276
#> Dec 2005 1393.3673 1393.3593 1393.3621 1393.3597 1393.3428 1393.3445 1393.3369
#> Jan 2006 1348.9019 1348.8866 1348.8891 1348.8834 1348.8679 1348.8690 1348.8618
#> Feb 2006 1423.2279 1423.2166 1423.2189 1423.2163 1423.2019 1423.2184 1423.2027
#> Mar 2006 1390.3994 1390.3949 1390.4094 1390.5816 1391.2048 1391.2669 1391.2548
#> Apr 2006 1440.7651 1440.6297 1440.6209 1440.4653 1440.1584 1440.1163 1440.1351
#> May 2006 1358.4181 1358.4780 1358.4867 1358.4880 1358.4476 1358.5164 1358.4831
#> Jun 2006 1416.5665 1416.7140 1416.6957 1416.7080 1416.5600 1416.4371 1416.4604
#> Jul 2006 1462.0124 1462.0252 1462.0063 1461.9726 1461.8835 1461.8323 1461.8490
#> Aug 2006 1430.2632 1430.2676 1430.2776 1430.2950 1430.3173 1430.3478 1430.3675
#> Sep 2006 1347.0902 1347.0507 1347.0411 1347.0384 1347.0729 1347.0784 1347.1239
#> Oct 2006 1406.0140 1405.9906 1405.9867 1405.9794 1405.9656 1405.9781 1406.0252
#> Nov 2006 1451.3321 1451.3225 1451.3275 1451.3347 1451.3450 1451.3738 1451.4057
#> Dec 2006 1449.2007 1449.1395 1449.1221 1449.0893 1449.0591 1449.0417 1449.1095
#> Jan 2007 1407.2101 1407.3134 1407.3759 1407.4185 1407.3109 1407.3390 1406.9226
#> Feb 2007 1438.1473 1438.1165 1438.1116 1438.1056 1438.1237 1438.1538 1438.1783
#> Mar 2007 1541.2252 1541.1679 1541.1670 1541.2996 1541.8920 1541.9214 1541.9688
#> Apr 2007 1388.8618 1388.7592 1388.7725 1388.6725 1388.5161 1388.5140 1388.5253
#> May 2007 1463.6056 1463.6799 1463.6754 1463.6503 1463.5702 1463.6577 1463.6518
#> Jun 2007 1490.9359 1491.0580 1491.0039 1490.9782 1490.7713 1490.5177 1490.5833
#> Jul 2007 1480.8486 1480.9130 1480.9158 1480.9215 1480.9212 1480.8684 1480.8615
#> Aug 2007 1520.9914 1520.9922 1521.0141 1521.0496 1521.1411 1521.1681 1521.1990
#> Sep 2007 1518.1716 1518.0675 1518.0390 1518.0034 1518.0266 1517.9784 1518.0908
#> Oct 2007 1500.8426 1500.8362 1500.8475 1500.8763 1500.8935 1500.9529 1501.0200
#> Nov 2007 1515.1613 1515.1358 1515.1319 1515.1424 1515.0903 1515.1566 1515.2582
#> Dec 2007 1527.3347 1527.2419 1527.2050 1527.1583 1527.0411 1527.0688 1527.2139
#> Jan 2008 1536.1448 1536.3366 1536.4307 1536.4771 1536.0829 1536.1719 1535.3509
#> Feb 2008 1513.4345 1513.3906 1513.3639 1513.3415 1513.2657 1513.4045 1513.5207
#> Mar 2008 1507.3365 1507.2415 1507.2147 1506.9775 1506.2324 1506.2456 1506.3610
#> Apr 2008 1546.5099 1546.4810 1546.6582 1547.0169 1549.2940 1549.2042 1548.8301
#> May 2008 1531.3444 1531.4016 1531.3448 1531.2283 1530.9019 1531.0645 1531.1982
#> Jun 2008 1405.8846 1405.9980 1405.9135 1405.8737 1405.4969 1404.9531 1405.3100
#> Jul 2008 1574.3755 1574.5165 1574.4978 1574.5762 1574.6342 1574.5083 1574.1810
#> Aug 2008 1495.2467 1495.1811 1495.1708 1495.1373 1495.0675 1495.0961 1495.2601
#> Sep 2008 1530.9573 1530.9283 1530.9473 1530.9739 1530.9897 1531.0769 1531.1938
#> Oct 2008 1514.4400 1514.3998 1514.4190 1514.4483 1514.4002 1514.5171 1514.6512
#> Nov 2008 1534.2280 1534.0642 1534.0232 1533.9595 1533.7439 1533.7884 1534.0280
#> Dec 2008 1580.8274 1580.7527 1580.7502 1580.7624 1580.6667 1580.8354 1580.9990
#> Jan 2009 1593.7663 1593.9734 1594.0798 1594.0899 1593.3825 1593.4951 1592.3196
#> Feb 2009 1462.0265 1461.9420 1461.8828 1461.8273 1461.6848 1461.8968 1462.1240
#> Mar 2009 1611.3546 1611.2943 1611.2309 1611.3347 1611.8552 1612.1072 1612.3871
#> Apr 2009 1594.7740 1594.8785 1595.1947 1595.3212 1597.5681 1597.1908 1596.3423
#> May 2009 1642.8437 1642.9382 1642.7891 1642.5879 1642.1525 1642.4173 1642.7370
#> Jun 2009 1495.8842 1496.0518 1495.9177 1495.8831 1495.2510 1494.2902 1494.8418
#> Jul 2009 1550.7869 1550.9815 1550.8632 1550.9792 1551.1216 1550.8610 1550.2390
#> Aug 2009 1582.9476 1582.9410 1582.9184 1582.8524 1582.7756 1582.9493 1583.2022
#> Sep 2009 1550.6901 1550.6571 1550.7297 1550.7470 1550.7317 1550.9469 1551.1329
#> Oct 2009 1616.4479 1616.2759 1616.3579 1616.3703 1616.1486 1616.3560 1616.5897
#> Nov 2009 1581.6100 1581.3258 1581.4321 1581.4245 1581.0282 1581.1774 1581.4347
#> Dec 2009 1536.7761 1536.4920 1536.6580 1536.6961 1536.3500 1536.5143 1536.7029
#> Jan 2010 1616.7664 1617.3554 1617.6503 1617.6702 1616.5973 1616.6650 1615.5276
#> Feb 2010 1541.5315 1541.2168 1539.8386 1539.8316 1539.3200 1539.5059 1539.7705
#> Mar 2010 1533.2576 1533.1696 1533.4492 1532.8556 1532.1015 1532.2626 1532.4838
#> Apr 2010 1520.7504 1521.0178 1521.5711 1522.1918 1528.2720 1527.5823 1526.3510
#> May 2010 1535.7020 1535.8896 1535.5579 1535.3954 1534.4027 1535.6931 1536.0456
#> Jun 2010 1547.8834 1548.1017 1547.9141 1547.8259 1546.6131 1544.9132 1546.0307
#> Jul 2010 1576.6612 1576.8623 1576.6701 1576.8156 1577.0032 1576.5149 1575.5173
#> Aug 2010 1544.1668 1544.2508 1544.2166 1544.1842 1544.0202 1544.4325 1544.6915
#> Sep 2010 1574.6322 1574.5739 1574.6775 1574.7221 1574.5252 1574.8461 1575.1126
#> Oct 2010 1557.1275 1556.8140 1556.9669 1557.0212 1556.6475 1556.8769 1557.1162
#> Nov 2010 1543.5792 1543.1636 1543.4460 1543.5644 1543.0877 1543.3224 1543.4759
#> Dec 2010 1516.0806 1515.5530 1515.9083 1516.0406 1515.5163 1515.6743 1515.8638
#> Jan 2011 1551.6690 1553.5366 1554.0375 1554.1694 1552.9192 1552.9105 1551.8917
#> Feb 2011 1550.5379 1549.8080 1546.8098 1546.9110 1546.1395 1546.1757 1546.5442
#> Mar 2011 1511.2313 1510.9088 1511.5928 1509.9857 1509.7872 1509.7962 1510.2027
#> Apr 2011 1579.8086 1580.0928 1580.8560 1581.5038 1589.5318 1588.4637 1587.3828
#> May 2011 1500.3367 1500.5597 1500.0685 1500.0817 1498.6621 1500.9958 1501.5777
#> Jun 2011 1466.6566 1466.8182 1466.6308 1466.5539 1464.9836 1462.8669 1463.0527
#> Jul 2011 1543.4463 1543.5894 1543.3708 1543.5828 1543.8616 1543.2195 1542.1378
#> Aug 2011 1489.0041 1489.1412 1489.0952 1489.1543 1488.9825 1489.5761 1489.8332
#> Sep 2011 1487.8033 1487.6971 1487.8405 1487.9672 1487.6914 1488.0421 1488.3688
#> Oct 2011 1496.6863 1496.2513 1496.5122 1496.6833 1496.2210 1496.4696 1496.7002
#> Nov 2011 1505.9445 1505.3244 1505.7840 1506.0282 1505.3550 1505.6160 1505.7585
#> Dec 2011 1518.0414 1517.1805 1517.7548 1517.9977 1517.1508 1517.2674 1517.5025
#> Jan 2012 1485.0491 1488.7809 1489.5036 1489.8077 1488.4895 1488.4717 1487.9420
#> Feb 2012 1511.8603 1510.6593 1505.6607 1505.9249 1504.7811 1504.6779 1505.1242
#> Mar 2012 1543.5702 1542.8711 1544.0902 1540.4970 1539.6549 1539.3917 1539.9893
#> Apr 2012 1503.8449 1504.0766 1505.1094 1506.1292 1517.0853 1515.7358 1514.8077
#> May 2012 1537.3114 1537.4817 1536.8197 1537.0658 1534.9114 1538.4633 1539.3532
#> Jun 2012 1621.8568 1621.8698 1621.6713 1621.5925 1619.2929 1616.3536 1615.4277
#> Jul 2012 1424.8562 1424.9458 1424.8018 1425.1697 1425.5099 1424.8523 1423.6408
#> Aug 2012 1558.3267 1558.3464 1558.2419 1558.4201 1558.0308 1558.8355 1559.1770
#> Sep 2012 1538.1165 1537.7596 1537.8111 1538.0292 1537.4241 1537.7466 1538.2668
#> Oct 2012 1513.0487 1512.4887 1512.8069 1513.2610 1512.7500 1513.0750 1513.2404
#> Nov 2012 1519.7985 1518.9284 1519.4494 1519.9221 1519.0861 1519.4068 1519.5183
#> Dec 2012 1542.7049 1541.4927 1542.1236 1542.5728 1541.4766 1541.6388 1542.0131
#> Jan 2013 NaN 1518.8617 1519.6461 1520.2132 1518.8901 1518.9362 1519.0529
#> Feb 2013 NaN NaN 1537.4613 1537.9418 1536.5549 1536.3787 1537.1440
#> Mar 2013 NaN NaN NaN 1536.4612 1534.2716 1533.7917 1534.7265
#> Apr 2013 NaN NaN NaN NaN 1516.4613 1515.2242 1515.0102
#> May 2013 NaN NaN NaN NaN NaN 1522.8499 1524.2932
#> Jun 2013 NaN NaN NaN NaN NaN NaN 1545.0239
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 43 Series 44 Series 45 Series 46 Series 47 Series 48 Series 49
#> Apr 1982 489.7601 489.7606 489.7603 489.7473 489.7518 489.7520 489.7367
#> May 1982 478.2715 478.2665 478.2666 478.2830 478.2746 478.2741 478.2859
#> Jun 1982 486.8560 486.8629 486.8627 486.8330 486.8469 486.8476 486.8223
#> Jul 1982 485.1705 485.1719 485.1719 485.1651 485.1682 485.1683 485.1626
#> Aug 1982 491.0442 491.0373 491.0375 491.0656 491.0522 491.0515 491.0757
#> Sep 1982 497.2160 497.2274 497.2271 497.1818 497.2036 497.2046 497.1657
#> Oct 1982 480.8960 480.8856 480.8859 480.9294 480.9088 480.9078 480.9454
#> Nov 1982 485.9118 485.9138 485.9137 485.9067 485.9102 485.9104 485.9054
#> Dec 1982 488.5835 488.5958 488.5954 488.5463 488.5699 488.5710 488.5306
#> Jan 1983 444.6372 444.6167 444.6174 444.7042 444.6633 444.6614 444.7364
#> Feb 1983 504.3695 504.3686 504.3687 504.3731 504.3711 504.3710 504.3757
#> Mar 1983 513.2492 513.2551 513.2543 513.1989 513.2206 513.2214 513.1647
#> Apr 1983 560.7658 560.7591 560.7599 560.8177 560.7947 560.7939 560.8488
#> May 1983 481.7193 481.7255 481.7253 481.6954 481.7090 481.7096 481.6827
#> Jun 1983 507.4090 507.4173 507.4170 507.3815 507.3982 507.3989 507.3683
#> Jul 1983 499.1988 499.1867 499.1871 499.2360 499.2126 499.2115 499.2529
#> Aug 1983 510.3155 510.3230 510.3228 510.2920 510.3066 510.3073 510.2815
#> Sep 1983 516.3766 516.3891 516.3887 516.3394 516.3632 516.3643 516.3216
#> Oct 1983 515.0607 515.0484 515.0487 515.1004 515.0759 515.0748 515.1193
#> Nov 1983 528.9185 528.9201 528.9201 528.9165 528.9187 528.9188 528.9181
#> Dec 1983 531.3502 531.3501 531.3501 531.3523 531.3515 531.3515 531.3544
#> Jan 1984 481.5526 481.5434 481.5437 481.5843 481.5654 481.5645 481.6005
#> Feb 1984 534.4446 534.4481 534.4481 534.4351 534.4415 534.4418 534.4320
#> Mar 1984 555.1376 555.1371 555.1373 555.1481 555.1442 555.1441 555.1523
#> Apr 1984 521.5364 521.5230 521.5230 521.5617 521.5408 521.5397 521.5675
#> May 1984 560.5141 560.5345 560.5339 560.4453 560.4868 560.4887 560.4127
#> Jun 1984 553.1501 553.1465 553.1466 553.1599 553.1534 553.1531 553.1641
#> Jul 1984 574.9009 574.9000 574.9000 574.9039 574.9021 574.9020 574.9029
#> Aug 1984 564.8097 564.8209 564.8206 564.7748 564.7966 564.7976 564.7604
#> Sep 1984 570.4785 570.4647 570.4651 570.5248 570.4968 570.4955 570.5454
#> Oct 1984 578.6131 578.6253 578.6249 578.5760 578.5995 578.6006 578.5607
#> Nov 1984 579.0272 579.0285 579.0285 579.0289 579.0296 579.0296 579.0353
#> Dec 1984 571.6997 571.6849 571.6853 571.7481 571.7185 571.7171 571.7705
#> Jan 1985 594.0720 594.0784 594.0783 594.0554 594.0669 594.0674 594.0488
#> Feb 1985 610.7401 610.7402 610.7402 610.7419 610.7414 610.7414 610.7428
#> Mar 1985 604.9976 604.9791 604.9794 605.0451 605.0122 605.0106 605.0580
#> Apr 1985 629.6665 629.6690 629.6688 629.6508 629.6582 629.6585 629.6399
#> May 1985 661.8489 661.8707 661.8700 661.7762 661.8202 661.8223 661.7431
#> Jun 1985 623.7431 623.7240 623.7245 623.8022 623.7651 623.7634 623.8309
#> Jul 1985 633.6600 633.6748 633.6744 633.6156 633.6438 633.6452 633.5926
#> Aug 1985 666.9768 666.9769 666.9769 666.9774 666.9773 666.9773 666.9838
#> Sep 1985 609.4692 609.4690 609.4690 609.4729 609.4715 609.4715 609.4777
#> Oct 1985 660.8319 660.8443 660.8440 660.7943 660.8181 660.8192 660.7803
#> Nov 1985 651.7223 651.7063 651.7070 651.7812 651.7471 651.7456 651.8168
#> Dec 1985 636.8362 636.8346 636.8347 636.8426 636.8390 636.8389 636.8429
#> Jan 1986 658.9592 658.9704 658.9701 658.9269 658.9479 658.9489 658.9086
#> Feb 1986 652.4121 652.4125 652.4125 652.4126 652.4128 652.4129 652.4081
#> Mar 1986 611.3930 611.3664 611.3659 611.4187 611.3850 611.3830 611.4042
#> Apr 1986 658.1593 658.1723 658.1728 658.1592 658.1717 658.1726 658.1671
#> May 1986 726.8778 726.8813 726.8811 726.8628 726.8709 726.8713 726.8559
#> Jun 1986 603.8658 603.8607 603.8608 603.8813 603.8715 603.8710 603.8907
#> Jul 1986 703.3014 703.3186 703.3182 703.2499 703.2827 703.2843 703.2207
#> Aug 1986 676.6638 676.6478 676.6482 676.7149 676.6834 676.6819 676.7484
#> Sep 1986 711.3776 711.3934 711.3930 711.3317 711.3614 711.3629 711.3200
#> Oct 1986 690.2138 690.2265 690.2262 690.1752 690.1996 690.2008 690.1738
#> Nov 1986 655.9944 655.9624 655.9635 656.1041 656.0385 656.0355 656.1844
#> Dec 1986 714.4448 714.4610 714.4606 714.3954 714.4267 714.4282 714.3854
#> Jan 1987 720.5611 720.5593 720.5594 720.5694 720.5650 720.5649 720.5765
#> Feb 1987 708.6261 708.6273 708.6273 708.6248 708.6263 708.6264 708.6140
#> Mar 1987 702.3260 702.3241 702.3244 702.3478 702.3389 702.3387 702.3331
#> Apr 1987 707.7687 707.7740 707.7731 707.7123 707.7354 707.7362 707.4717
#> May 1987 710.2235 710.2063 710.2067 710.2755 710.2425 710.2409 710.2760
#> Jun 1987 714.8391 714.8429 714.8427 714.8260 714.8337 714.8341 714.9469
#> Jul 1987 773.7655 773.7872 773.7867 773.7008 773.7422 773.7442 773.6369
#> Aug 1987 704.4355 704.4202 704.4207 704.4838 704.4538 704.4524 704.7586
#> Sep 1987 721.3296 721.3439 721.3436 721.2877 721.3147 721.3160 721.2498
#> Oct 1987 744.5013 744.4978 744.4979 744.5132 744.5060 744.5057 744.5077
#> Nov 1987 683.5581 683.5404 683.5410 683.6224 683.5850 683.5833 683.6600
#> Dec 1987 751.3022 751.3210 751.3205 751.2439 751.2805 751.2822 751.2157
#> Jan 1988 754.1504 754.1317 754.1323 754.2098 754.1731 754.1714 754.2317
#> Feb 1988 738.2427 738.2507 738.2505 738.2192 738.2343 738.2350 738.1845
#> Mar 1988 757.7992 757.8093 757.8084 757.7341 757.7646 757.7658 757.6630
#> Apr 1988 788.2296 788.2310 788.2313 788.2429 788.2400 788.2400 787.8416
#> May 1988 744.8801 744.8797 744.8797 744.8804 744.8800 744.8799 744.8656
#> Jun 1988 757.5403 757.5258 757.5262 757.5828 757.5553 757.5540 757.7628
#> Jul 1988 756.0550 756.0441 756.0444 756.0917 756.0696 756.0685 756.1571
#> Aug 1988 749.2262 749.2442 749.2436 749.1671 749.2031 749.2048 749.8615
#> Sep 1988 777.3663 777.3800 777.3797 777.3261 777.3520 777.3533 776.8903
#> Oct 1988 772.9146 772.8938 772.8944 772.9805 772.9397 772.9378 773.0031
#> Nov 1988 785.6659 785.6679 785.6680 785.6671 785.6687 785.6688 785.6806
#> Dec 1988 809.9344 809.9380 809.9379 809.9236 809.9305 809.9309 809.9254
#> Jan 1989 753.5960 753.5956 753.5956 753.5982 753.5971 753.5970 753.6044
#> Feb 1989 768.5352 768.5399 768.5398 768.5212 768.5302 768.5307 768.5010
#> Mar 1989 793.3604 793.3711 793.3698 793.2782 793.3147 793.3160 793.2046
#> Apr 1989 787.0550 787.0431 787.0443 787.1326 787.0965 787.0951 786.5741
#> May 1989 770.4829 770.5006 770.5001 770.4284 770.4627 770.4643 770.3902
#> Jun 1989 815.3711 815.3376 815.3384 815.4713 815.4072 815.4042 815.7118
#> Jul 1989 798.8715 798.8629 798.8632 798.8996 798.8825 798.8817 799.0538
#> Aug 1989 833.7915 833.8089 833.8083 833.7310 833.7668 833.7684 835.0069
#> Sep 1989 822.7214 822.7156 822.7159 822.7426 822.7303 822.7298 821.8821
#> Oct 1989 784.3958 784.3953 784.3953 784.3985 784.3972 784.3971 784.3789
#> Nov 1989 827.9094 827.9156 827.9156 827.8947 827.9054 827.9059 827.8730
#> Dec 1989 818.8500 818.8365 818.8369 818.8930 818.8664 818.8651 818.9037
#> Jan 1990 804.7875 804.8057 804.8052 804.7310 804.7664 804.7681 804.7074
#> Feb 1990 813.1950 813.2015 813.2014 813.1750 813.1877 813.1883 813.1723
#> Mar 1990 854.7732 854.7821 854.7829 854.7929 854.7952 854.7957 854.8412
#> Apr 1990 792.8553 792.8488 792.8481 792.8322 792.8333 792.8331 792.2465
#> May 1990 820.9128 820.9325 820.9319 820.8523 820.8904 820.8922 820.8639
#> Jun 1990 863.3263 863.2579 863.2598 863.5348 863.4030 863.3967 863.7382
#> Jul 1990 792.3841 792.3948 792.3945 792.3497 792.3709 792.3719 792.6143
#> Aug 1990 874.6909 874.7065 874.7059 874.6332 874.6664 874.6679 875.9767
#> Sep 1990 812.7907 812.7651 812.7659 812.8742 812.8231 812.8207 811.6822
#> Oct 1990 804.3884 804.4090 804.4084 804.3258 804.3654 804.3673 804.3245
#> Nov 1990 833.0280 833.0397 833.0395 832.9933 833.0156 833.0167 833.0041
#> Dec 1990 823.6645 823.6512 823.6516 823.7072 823.6809 823.6797 823.7551
#> Jan 1991 821.8458 821.8644 821.8639 821.7890 821.8248 821.8265 821.8036
#> Feb 1991 833.1756 833.1838 833.1836 833.1513 833.1669 833.1676 833.1980
#> Mar 1991 813.5810 813.5544 813.5541 813.6147 813.5786 813.5765 813.6783
#> Apr 1991 833.3816 833.4081 833.4085 833.3520 833.3868 833.3889 832.7835
#> May 1991 827.9761 827.9989 827.9983 827.9061 827.9502 827.9523 827.9363
#> Jun 1991 777.4299 777.3501 777.3523 777.6753 777.5208 777.5135 777.9076
#> Jul 1991 882.6027 882.6259 882.6251 882.5258 882.5722 882.5744 882.7093
#> Aug 1991 899.3957 899.3929 899.3928 899.3957 899.3929 899.3927 900.5853
#> Sep 1991 804.5165 804.5108 804.5111 804.5380 804.5257 804.5252 803.3537
#> Oct 1991 866.5764 866.6012 866.6005 866.5009 866.5487 866.5509 866.5061
#> Nov 1991 856.7133 856.7061 856.7063 856.7375 856.7230 856.7223 856.7706
#> Dec 1991 842.5774 842.5826 842.5825 842.5625 842.5723 842.5728 842.5883
#> Jan 1992 872.5115 872.5333 872.5327 872.4433 872.4859 872.4879 872.4584
#> Feb 1992 887.0639 887.0572 887.0574 887.0864 887.0729 887.0723 887.1898
#> Mar 1992 831.5784 831.5837 831.5843 831.5970 831.5962 831.5964 831.7303
#> Apr 1992 878.4397 878.4518 878.4507 878.3675 878.4022 878.4035 878.0071
#> May 1992 889.1940 889.1772 889.1777 889.2480 889.2148 889.2133 889.4062
#> Jun 1992 844.6194 844.5800 844.5810 844.7397 844.6637 844.6601 844.8224
#> Jul 1992 873.4695 873.4844 873.4838 873.4153 873.4464 873.4478 873.5528
#> Aug 1992 855.4400 855.4215 855.4219 855.4926 855.4579 855.4562 856.0878
#> Sep 1992 882.1683 882.1814 882.1811 882.1314 882.1557 882.1568 880.8780
#> Oct 1992 910.4856 910.4925 910.4923 910.4663 910.4791 910.4797 910.5686
#> Nov 1992 885.6338 885.6267 885.6269 885.6579 885.6435 885.6428 885.7552
#> Dec 1992 865.0463 865.0698 865.0692 864.9744 865.0198 865.0220 865.0247
#> Jan 1993 909.9957 909.9740 909.9746 910.0620 910.0202 910.0182 910.1717
#> Feb 1993 878.5844 878.5915 878.5913 878.5636 878.5771 878.5777 878.6838
#> Mar 1993 888.5280 888.5517 888.5516 888.4845 888.5211 888.5230 888.6129
#> Apr 1993 884.6534 884.6653 884.6644 884.5878 884.6202 884.6215 884.4516
#> May 1993 916.1239 916.1068 916.1073 916.1788 916.1450 916.1434 916.3414
#> Jun 1993 911.3155 911.2929 911.2935 911.3848 911.3411 911.3390 911.4276
#> Jul 1993 858.0952 858.0790 858.0792 858.1360 858.1068 858.1054 858.1091
#> Aug 1993 856.5499 856.5583 856.5581 856.5244 856.5402 856.5409 856.4607
#> Sep 1993 909.0565 909.0626 909.0624 909.0387 909.0504 909.0510 908.2748
#> Oct 1993 900.0635 900.0500 900.0504 900.1072 900.0805 900.0792 900.2488
#> Nov 1993 883.7994 883.8135 883.8131 883.7570 883.7840 883.7853 883.8350
#> Dec 1993 894.8303 894.8523 894.8517 894.7630 894.8056 894.8077 894.8260
#> Jan 1994 888.1115 888.0896 888.0901 888.1774 888.1356 888.1336 888.2755
#> Feb 1994 907.9547 907.9587 907.9586 907.9435 907.9511 907.9515 908.0660
#> Mar 1994 932.4351 932.4459 932.4447 932.3576 932.3929 932.3942 932.4512
#> Apr 1994 917.8068 917.8077 917.8086 917.8492 917.8367 917.8365 918.0094
#> May 1994 911.3815 911.3834 911.3833 911.3765 911.3800 911.3802 911.5123
#> Jun 1994 943.3897 943.3874 943.3874 943.3937 943.3887 943.3884 943.3816
#> Jul 1994 869.1864 869.1460 869.1470 869.3033 869.2269 869.2232 869.2224
#> Aug 1994 929.5054 929.5428 929.5419 929.3960 929.4662 929.4695 928.6050
#> Sep 1994 954.2584 954.2577 954.2578 954.2596 954.2590 954.2591 954.0059
#> Oct 1994 954.3799 954.3638 954.3643 954.4316 954.4001 954.3986 954.6069
#> Nov 1994 910.9015 910.9159 910.9155 910.8578 910.8858 910.8871 910.9727
#> Dec 1994 956.7086 956.7069 956.7070 956.7157 956.7123 956.7122 956.8468
#> Jan 1995 886.9685 886.9644 886.9644 886.9780 886.9711 886.9706 887.0623
#> Feb 1995 933.8940 933.8946 933.8946 933.8933 933.8946 933.8947 934.0064
#> Mar 1995 956.2440 956.2690 956.2690 956.2024 956.2400 956.2420 956.2881
#> Apr 1995 973.4934 973.4552 973.4556 973.5787 973.5154 973.5121 973.6842
#> May 1995 927.1223 927.1434 927.1428 927.0569 927.0981 927.1001 927.1063
#> Jun 1995 944.9522 944.9670 944.9664 944.8942 944.9217 944.9226 944.9526
#> Jul 1995 964.4379 964.3969 964.3981 964.5632 964.4851 964.4819 964.3245
#> Aug 1995 1013.1411 1013.1848 1013.1838 1013.0158 1013.0972 1013.1010 1012.0818
#> Sep 1995 930.1143 930.0854 930.0862 930.2018 930.1469 930.1445 930.4462
#> Oct 1995 938.5553 938.5580 938.5579 938.5479 938.5533 938.5535 938.6366
#> Nov 1995 967.8124 967.8295 967.8290 967.7607 967.7941 967.7956 967.8274
#> Dec 1995 984.0586 984.0317 984.0325 984.1454 984.0931 984.0907 984.2769
#> Jan 1996 970.9969 971.0099 971.0094 970.9515 970.9780 970.9790 970.9800
#> Feb 1996 974.7761 974.7817 974.7816 974.7611 974.7725 974.7730 974.8196
#> Mar 1996 963.2034 963.1800 963.1810 963.2943 963.2441 963.2418 963.3944
#> Apr 1996 960.5940 960.6044 960.6038 960.5492 960.5743 960.5754 960.5789
#> May 1996 968.6751 968.6957 968.6951 968.6121 968.6526 968.6545 968.6399
#> Jun 1996 974.3262 974.2964 974.2966 974.3929 974.3313 974.3276 974.4730
#> Jul 1996 958.4513 958.4715 958.4714 958.3944 958.4348 958.4378 958.1963
#> Aug 1996 1035.8088 1035.8288 1035.8284 1035.7578 1035.7929 1035.7946 1035.0913
#> Sep 1996 907.3283 907.2987 907.2995 907.4175 907.3614 907.3589 907.6256
#> Oct 1996 949.3464 949.3680 949.3674 949.2790 949.3216 949.3235 949.3116
#> Nov 1996 982.5864 982.5813 982.5814 982.6035 982.5937 982.5932 982.6759
#> Dec 1996 965.4707 965.4653 965.4655 965.4905 965.4805 965.4801 965.5653
#> Jan 1997 975.2502 975.2589 975.2585 975.2199 975.2376 975.2380 975.2396
#> Feb 1997 1002.1263 1002.1238 1002.1239 1002.1401 1002.1363 1002.1361 1002.1841
#> Mar 1997 984.3144 984.2787 984.2785 984.3659 984.3189 984.3163 984.3911
#> Apr 1997 946.3090 946.3296 946.3305 946.3175 946.3381 946.3396 946.3567
#> May 1997 1014.4912 1014.4885 1014.4887 1014.5074 1014.5036 1014.5036 1014.5298
#> Jun 1997 893.1772 893.1739 893.1728 893.1345 893.1216 893.1194 893.1088
#> Jul 1997 1008.3162 1008.3508 1008.3509 1008.2269 1008.2947 1008.3003 1008.1296
#> Aug 1997 982.3083 982.2980 982.2983 982.3443 982.3203 982.3189 982.0494
#> Sep 1997 1014.4204 1014.4115 1014.4116 1014.4418 1014.4262 1014.4254 1014.5918
#> Oct 1997 996.3556 996.3757 996.3751 996.2927 996.3325 996.3342 996.2863
#> Nov 1997 1013.8075 1013.7779 1013.7787 1013.9023 1013.8453 1013.8424 1013.9714
#> Dec 1997 979.0347 979.0514 979.0510 978.9876 979.0213 979.0228 978.9949
#> Jan 1998 1067.2739 1067.2566 1067.2570 1067.3290 1067.2956 1067.2935 1067.3631
#> Feb 1998 989.8726 989.8704 989.8706 989.8890 989.8866 989.8865 989.9088
#> Mar 1998 988.0133 988.0172 988.0182 988.0549 988.0514 988.0517 988.0923
#> Apr 1998 1028.3557 1028.3604 1028.3596 1028.3149 1028.3391 1028.3402 1028.2903
#> May 1998 998.6142 998.5883 998.5892 998.7091 998.6609 998.6589 998.7547
#> Jun 1998 914.8380 914.8563 914.8540 914.7013 914.7271 914.7263 914.6097
#> Jul 1998 1070.2173 1070.2616 1070.2619 1070.1042 1070.1907 1070.1987 1070.1318
#> Aug 1998 1027.6801 1027.6625 1027.6628 1027.7289 1027.6910 1027.6894 1027.5425
#> Sep 1998 1015.5117 1015.5098 1015.5096 1015.5100 1015.5072 1015.5075 1015.5891
#> Oct 1998 1052.4017 1052.3957 1052.3958 1052.4203 1052.4093 1052.4091 1052.4315
#> Nov 1998 1024.4804 1024.4732 1024.4734 1024.5066 1024.4936 1024.4933 1024.5251
#> Dec 1998 1027.8654 1027.8806 1027.8803 1027.8244 1027.8564 1027.8541 1027.8152
#> Jan 1999 1101.8002 1101.7577 1101.7588 1101.9386 1101.8559 1101.8519 1102.0064
#> Feb 1999 1025.4293 1025.4272 1025.4274 1025.4491 1025.4472 1025.4477 1025.4622
#> Mar 1999 1042.4651 1042.4822 1042.4814 1042.4018 1042.4467 1042.4497 1042.3642
#> Apr 1999 1041.5906 1041.6092 1041.6097 1041.5846 1041.6132 1041.6165 1041.5905
#> May 1999 1042.8351 1042.8072 1042.8083 1042.9428 1042.8911 1042.8907 1042.9889
#> Jun 1999 966.4551 966.4751 966.4723 966.2926 966.3184 966.3187 966.1781
#> Jul 1999 1088.8607 1088.8816 1088.8829 1088.8238 1088.8650 1088.8746 1088.8977
#> Aug 1999 1057.0634 1057.0619 1057.0614 1057.0507 1057.0445 1057.0452 1056.9655
#> Sep 1999 1085.9672 1085.9741 1085.9737 1085.9350 1085.9489 1085.9470 1085.9537
#> Oct 1999 1085.1129 1085.0798 1085.0806 1085.2168 1085.1527 1085.1493 1085.2581
#> Nov 1999 1076.5780 1076.5921 1076.5917 1076.5395 1076.5687 1076.5703 1076.5192
#> Dec 1999 1074.1025 1074.1201 1074.1197 1074.0547 1074.0926 1074.0849 1074.0324
#> Jan 2000 1080.7552 1080.7130 1080.7142 1080.8943 1080.8125 1080.8077 1080.9538
#> Feb 2000 1072.3069 1072.3127 1072.3127 1072.3030 1072.3167 1072.3181 1072.3004
#> Mar 2000 1070.4917 1070.5204 1070.5208 1070.4669 1070.5108 1070.5158 1070.4666
#> Apr 2000 1101.8300 1101.7854 1101.7861 1101.9507 1101.8783 1101.8794 1101.9931
#> May 2000 1069.6261 1069.6473 1069.6470 1069.5806 1069.6241 1069.6336 1069.5578
#> Jun 2000 1257.0749 1257.1016 1257.0982 1256.8737 1256.9087 1256.9186 1256.7350
#> Jul 2000 897.1068 897.1033 897.1048 897.1410 897.1332 897.1428 897.2246
#> Aug 2000 1177.8286 1177.8530 1177.8517 1177.7297 1177.7740 1177.7829 1177.6693
#> Sep 2000 1157.7112 1157.6995 1157.6995 1157.7365 1157.7134 1157.7095 1157.7371
#> Oct 2000 1102.7624 1102.7537 1102.7538 1102.7881 1102.7719 1102.7718 1102.7935
#> Nov 2000 1093.6582 1093.6628 1093.6626 1093.6413 1093.6553 1093.6318 1093.6311
#> Dec 2000 1151.2942 1151.2577 1151.2588 1151.4137 1151.3469 1151.3280 1151.4653
#> Jan 2001 1114.1949 1114.2075 1114.2072 1114.1624 1114.1884 1114.1883 1114.1432
#> Feb 2001 1140.1386 1140.1380 1140.1383 1140.1545 1140.1554 1140.1575 1140.1604
#> Mar 2001 1214.4021 1214.4065 1214.4076 1214.4570 1214.4522 1214.4590 1214.4932
#> Apr 2001 1106.2380 1106.2226 1106.2226 1106.2738 1106.2552 1106.2647 1106.2780
#> May 2001 1147.0118 1147.0323 1147.0321 1146.9732 1147.0131 1147.0317 1146.9530
#> Jun 2001 1101.8373 1101.8358 1101.8339 1101.7620 1101.7436 1101.7614 1101.6936
#> Jul 2001 1147.5366 1147.5620 1147.5630 1147.4910 1147.5362 1147.5609 1147.5482
#> Aug 2001 1122.1183 1122.1416 1122.1405 1122.0291 1122.0687 1122.0899 1121.9738
#> Sep 2001 1123.5867 1123.5490 1123.5497 1123.6808 1123.6126 1123.6240 1123.7174
#> Oct 2001 1156.2347 1156.2539 1156.2532 1156.1770 1156.2131 1156.2267 1156.1431
#> Nov 2001 1190.5474 1190.5454 1190.5453 1190.5458 1190.5498 1190.5051 1190.5434
#> Dec 2001 1208.8369 1208.7993 1208.8003 1208.9528 1208.8864 1208.8498 1209.0029
#> Jan 2002 1173.3929 1173.4038 1173.4034 1173.3504 1173.3798 1173.3369 1173.3310
#> Feb 2002 1174.1737 1174.1705 1174.1706 1174.1770 1174.1798 1174.1331 1174.1809
#> Mar 2002 1185.0609 1185.0126 1185.0124 1185.1265 1185.0674 1185.0161 1185.1345
#> Apr 2002 1196.6048 1196.6358 1196.6371 1196.6249 1196.6520 1196.6282 1196.6555
#> May 2002 1223.3363 1223.3532 1223.3528 1223.2848 1223.3244 1223.2917 1223.2633
#> Jun 2002 1219.6515 1219.6608 1219.6603 1219.7190 1219.6583 1220.1367 1219.6923
#> Jul 2002 1119.6392 1119.6870 1119.6868 1119.5037 1119.5981 1119.5744 1119.4980
#> Aug 2002 1251.4361 1251.4274 1251.4273 1251.4365 1251.4211 1251.3932 1251.4301
#> Sep 2002 1165.0079 1164.9916 1164.9916 1165.0047 1164.9935 1164.9751 1165.0094
#> Oct 2002 1235.4012 1235.4189 1235.4183 1235.3346 1235.3738 1235.3494 1235.3023
#> Nov 2002 1330.4660 1330.4227 1330.4236 1330.5700 1330.5029 1330.3800 1330.6222
#> Dec 2002 1249.5249 1249.5124 1249.5126 1249.5485 1249.5349 1249.4634 1249.5591
#> Jan 2003 1249.8039 1249.8173 1249.8167 1249.7412 1249.7791 1249.7080 1249.7135
#> Feb 2003 1250.8512 1250.8476 1250.8473 1250.8433 1250.8473 1250.7829 1250.8398
#> Mar 2003 1299.9584 1299.9241 1299.9258 1300.1023 1300.0291 1299.9522 1300.1827
#> Apr 2003 1289.9583 1289.9719 1289.9705 1289.9127 1289.9373 1289.9058 1289.8616
#> May 2003 1296.9093 1296.8913 1296.8916 1296.9259 1296.9157 1296.8701 1296.9472
#> Jun 2003 1283.8495 1283.9333 1283.9323 1283.8859 1283.8958 1284.8969 1283.8120
#> Jul 2003 1232.3668 1232.4065 1232.4069 1232.2031 1232.3064 1231.9527 1232.2042
#> Aug 2003 1298.8024 1298.7585 1298.7595 1298.9145 1298.8335 1298.7646 1298.9600
#> Sep 2003 1304.5454 1304.5423 1304.5435 1304.4497 1304.4922 1304.5542 1304.4282
#> Oct 2003 1342.4266 1342.4491 1342.4481 1342.3400 1342.3898 1342.3390 1342.2981
#> Nov 2003 1372.7980 1372.7188 1372.7204 1373.0073 1372.8709 1372.7189 1373.1077
#> Dec 2003 1300.4717 1300.4900 1300.4888 1300.3904 1300.4374 1300.3521 1300.3542
#> Jan 2004 1351.4890 1351.4718 1351.4714 1351.5108 1351.4905 1351.3959 1351.5232
#> Feb 2004 1327.6578 1327.6307 1327.6305 1327.7127 1327.6717 1327.5952 1327.7394
#> Mar 2004 1314.1002 1314.1168 1314.1164 1314.0433 1314.0839 1313.8045 1314.0397
#> Apr 2004 1345.0221 1345.0272 1345.0247 1344.9895 1344.9990 1344.9324 1344.9179
#> May 2004 1372.8763 1372.8222 1372.8233 1372.9676 1372.9055 1372.8929 1373.0396
#> Jun 2004 1398.8954 1399.0689 1399.0676 1398.8885 1398.9805 1400.6537 1398.7533
#> Jul 2004 1368.7300 1368.7292 1368.7319 1368.6400 1368.6900 1367.9840 1368.6959
#> Aug 2004 1359.4964 1359.4818 1359.4829 1359.5286 1359.5048 1359.4358 1359.5401
#> Sep 2004 1434.7060 1434.6909 1434.6954 1434.6189 1434.6574 1434.8220 1434.6155
#> Oct 2004 1412.6698 1412.6271 1412.6285 1412.7842 1412.7072 1412.6097 1412.8351
#> Nov 2004 1358.4363 1358.4228 1358.4226 1358.4314 1358.4239 1358.2318 1358.4368
#> Dec 2004 1355.2277 1355.2463 1355.2446 1355.1296 1355.1803 1355.0228 1355.0891
#> Jan 2005 1430.4112 1430.3560 1430.3544 1430.5215 1430.4356 1430.2567 1430.5782
#> Feb 2005 1426.7481 1426.7398 1426.7355 1426.7100 1426.7150 1426.6023 1426.6964
#> Mar 2005 1433.4270 1433.4025 1433.3963 1433.2773 1433.3123 1432.7675 1433.1937
#> Apr 2005 1285.1515 1285.1334 1285.1304 1285.2821 1285.2217 1285.1038 1285.3080
#> May 2005 1359.8608 1359.8361 1359.8337 1359.8210 1359.8389 1359.8763 1359.8422
#> Jun 2005 1449.8153 1450.0547 1450.0531 1449.8751 1449.9619 1452.9517 1449.7248
#> Jul 2005 1349.6581 1349.6243 1349.6524 1349.7612 1349.7457 1348.2826 1349.9341
#> Aug 2005 1396.7662 1396.7842 1396.7827 1396.7027 1396.7407 1396.7226 1396.6588
#> Sep 2005 1392.5499 1392.5262 1392.5306 1392.4695 1392.5035 1392.8155 1392.4702
#> Oct 2005 1377.5784 1377.5370 1377.5355 1377.6767 1377.6049 1377.5307 1377.7177
#> Nov 2005 1371.0623 1371.0525 1371.0495 1371.0320 1371.0322 1370.8580 1371.0241
#> Dec 2005 1393.4304 1393.4113 1393.4078 1393.4035 1393.3938 1393.0713 1393.3981
#> Jan 2006 1348.8901 1348.8577 1348.8525 1348.8608 1348.8425 1348.3629 1348.8612
#> Feb 2006 1423.3416 1423.3105 1423.3003 1423.2682 1423.2686 1422.8791 1423.2378
#> Mar 2006 1391.3527 1391.3299 1391.3252 1391.2555 1391.2811 1390.1736 1391.2599
#> Apr 2006 1437.8914 1437.7826 1437.7768 1438.0500 1437.9003 1437.3289 1438.0316
#> May 2006 1359.1449 1359.1170 1359.0964 1358.9434 1359.0395 1358.9605 1358.9822
#> Jun 2006 1416.2138 1416.5993 1416.6054 1416.4021 1416.4846 1423.0752 1416.3010
#> Jul 2006 1462.8851 1462.8575 1462.9198 1463.1245 1463.1030 1460.6386 1463.3438
#> Aug 2006 1430.7108 1430.7272 1430.7314 1430.6904 1430.7309 1430.3543 1430.5956
#> Sep 2006 1347.0260 1346.9686 1346.9776 1347.0969 1347.0659 1347.0247 1347.0913
#> Oct 2006 1406.0248 1406.0029 1406.0024 1406.0593 1406.0508 1405.6062 1405.9965
#> Nov 2006 1451.5947 1451.5763 1451.5727 1451.5703 1451.5859 1451.0614 1451.4901
#> Dec 2006 1448.6691 1448.5973 1448.5926 1448.7690 1448.6946 1448.0198 1448.7534
#> Jan 2007 1407.7919 1407.7405 1407.6971 1407.0835 1407.1019 1406.7342 1407.4378
#> Feb 2007 1438.2177 1438.1604 1438.1401 1438.1642 1438.1635 1437.5586 1438.0613
#> Mar 2007 1541.5407 1541.4646 1541.4548 1541.5706 1541.5308 1539.9939 1541.5608
#> Apr 2007 1386.7406 1386.6590 1386.6501 1386.8219 1386.7439 1385.9089 1386.7200
#> May 2007 1464.3729 1464.3168 1464.2746 1464.1569 1464.2802 1464.1599 1464.2224
#> Jun 2007 1489.1555 1489.6453 1489.6611 1489.6467 1489.6454 1499.9516 1489.6363
#> Jul 2007 1482.8833 1482.9584 1483.1055 1483.1884 1483.2300 1480.0024 1483.4499
#> Aug 2007 1521.5682 1521.6046 1521.6143 1521.5967 1521.6494 1521.0228 1521.4433
#> Sep 2007 1517.3243 1517.2350 1517.2512 1517.6038 1517.4869 1517.2061 1517.6011
#> Oct 2007 1501.4600 1501.4805 1501.4840 1501.4698 1501.5286 1500.7486 1501.2744
#> Nov 2007 1515.5328 1515.5300 1515.5297 1515.5780 1515.6126 1514.7129 1515.3753
#> Dec 2007 1526.8074 1526.7099 1526.6989 1526.9385 1526.8572 1525.6713 1526.8116
#> Jan 2008 1536.9300 1536.7695 1536.6611 1535.4378 1535.4353 1534.8358 1536.1976
#> Feb 2008 1513.7592 1513.6009 1513.5369 1513.5573 1513.5878 1512.2787 1513.3142
#> Mar 2008 1506.0676 1505.8309 1505.7794 1506.0167 1505.9256 1503.6383 1505.8839
#> Apr 2008 1546.9856 1546.7576 1546.6739 1546.2959 1546.2742 1546.0262 1546.5786
#> May 2008 1531.5417 1531.3169 1531.2121 1531.2785 1531.3620 1530.6312 1531.3843
#> Jun 2008 1400.6283 1401.4738 1401.6070 1402.5809 1402.5857 1416.2490 1402.6929
#> Jul 2008 1579.5706 1580.2641 1580.7066 1580.2254 1580.2858 1577.2355 1580.3327
#> Aug 2008 1494.7075 1494.5845 1494.5644 1494.8412 1494.7706 1493.4195 1494.7292
#> Sep 2008 1531.4676 1531.3780 1531.3600 1531.4244 1531.4551 1530.3461 1531.2362
#> Oct 2008 1515.1312 1515.0727 1515.0487 1515.0473 1515.1090 1513.6503 1514.7666
#> Nov 2008 1533.2834 1533.1307 1533.1043 1533.4757 1533.3656 1531.8200 1533.2756
#> Dec 2008 1581.6704 1581.5513 1581.5049 1581.4826 1581.5397 1579.7798 1581.1167
#> Jan 2009 1593.9768 1593.6226 1593.4333 1591.7655 1591.6644 1591.0434 1592.9516
#> Feb 2009 1462.1845 1461.8972 1461.7881 1461.8854 1461.9039 1460.1748 1461.5306
#> Mar 2009 1612.0072 1611.6875 1611.5775 1611.7592 1611.7624 1609.0313 1611.5089
#> Apr 2009 1595.8073 1595.3182 1595.1373 1594.1800 1594.1809 1594.9721 1594.7583
#> May 2009 1642.4741 1642.0368 1641.8654 1642.1371 1642.1743 1640.7149 1642.2028
#> Jun 2009 1485.6842 1487.2630 1487.5608 1489.6233 1489.7299 1506.9610 1490.1793
#> Jul 2009 1559.2744 1560.6977 1561.5160 1560.8082 1560.8148 1558.3432 1560.6980
#> Aug 2009 1582.6354 1582.3389 1582.2643 1582.4881 1582.4341 1580.4293 1582.3565
#> Sep 2009 1551.3969 1551.1565 1551.0873 1551.0676 1551.1024 1549.3556 1550.8360
#> Oct 2009 1616.6097 1616.3522 1616.2791 1616.3357 1616.3191 1614.2977 1616.0242
#> Nov 2009 1581.2929 1581.0249 1580.9490 1581.0669 1581.0103 1579.0035 1580.7005
#> Dec 2009 1537.3812 1537.1178 1537.0242 1536.9153 1536.9316 1534.8620 1536.4273
#> Jan 2010 1616.8551 1616.3125 1616.0666 1614.4230 1614.2216 1613.2249 1615.5271
#> Feb 2010 1540.0311 1539.6065 1539.4312 1539.4440 1539.4381 1537.2153 1538.9519
#> Mar 2010 1533.2849 1532.9197 1532.7500 1532.6488 1532.7133 1529.9182 1532.1811
#> Apr 2010 1526.2546 1525.6449 1525.3806 1524.0310 1524.0190 1525.8544 1525.0075
#> May 2010 1535.6493 1535.1659 1534.9507 1535.4192 1535.5253 1533.5532 1535.4845
#> Jun 2010 1531.7890 1534.1642 1534.6395 1538.1335 1538.4309 1558.2618 1539.3166
#> Jul 2010 1587.2290 1589.6348 1590.9212 1590.3006 1590.1834 1588.2410 1589.5037
#> Aug 2010 1543.7027 1542.6199 1542.5147 1542.9108 1543.1279 1540.4415 1543.1768
#> Sep 2010 1575.4861 1575.2558 1575.1109 1575.4423 1575.7186 1573.0867 1575.6718
#> Oct 2010 1557.9917 1557.5900 1557.4788 1555.0008 1555.1731 1552.6153 1555.3056
#> Nov 2010 1544.4471 1543.9420 1543.7981 1544.3270 1542.8320 1540.4086 1542.7681
#> Dec 2010 1516.8891 1516.4387 1516.2548 1516.3463 1516.7483 1514.7819 1516.8538
#> Jan 2011 1553.3138 1552.6545 1552.3267 1550.4383 1550.3978 1549.7861 1548.0989
#> Feb 2011 1546.4184 1545.9808 1545.7149 1545.7111 1545.5451 1543.8268 1546.0481
#> Mar 2011 1509.9090 1509.7179 1509.4967 1509.4593 1509.5384 1507.7019 1509.5700
#> Apr 2011 1586.7207 1586.2913 1586.0281 1584.7886 1584.7575 1587.4451 1585.6840
#> May 2011 1499.9780 1499.9015 1499.7827 1500.3754 1500.6009 1499.0615 1500.6747
#> Jun 2011 1446.6013 1449.4942 1450.1222 1453.9216 1454.4094 1470.7925 1455.9600
#> Jul 2011 1558.9091 1562.2620 1563.9242 1564.0534 1563.8166 1560.2819 1561.1173
#> Aug 2011 1487.9624 1484.0783 1484.2972 1485.1991 1485.8308 1483.7921 1486.4526
#> Sep 2011 1488.6467 1488.6415 1487.7609 1488.8057 1489.5330 1487.5341 1490.2439
#> Oct 2011 1498.9397 1498.6231 1498.5101 1492.1182 1492.7824 1490.7613 1493.7466
#> Nov 2011 1507.0951 1506.4812 1506.3079 1507.5434 1503.7976 1501.8037 1504.6286
#> Dec 2011 1518.3028 1517.7989 1517.5527 1517.9813 1518.8014 1517.1045 1519.8905
#> Jan 2012 1489.5044 1488.9543 1488.6020 1486.7462 1486.9858 1486.2502 1479.3431
#> Feb 2012 1504.7955 1504.4698 1504.1477 1504.0323 1503.7028 1502.3981 1505.3435
#> Mar 2012 1538.4541 1538.4372 1538.1626 1538.2810 1538.3199 1537.0462 1539.1235
#> Apr 2012 1512.9659 1512.8661 1512.6028 1511.3392 1511.3768 1514.9590 1512.2201
#> May 2012 1536.1186 1536.5645 1536.5351 1537.2760 1537.6497 1536.4868 1537.9864
#> Jun 2012 1593.2987 1597.1246 1598.0290 1603.1143 1603.8299 1619.0103 1606.3623
#> Jul 2012 1446.6901 1450.9715 1452.8677 1453.3172 1453.0984 1447.9030 1448.0404
#> Aug 2012 1555.4565 1547.3944 1548.0152 1549.8215 1550.9296 1549.4455 1552.4743
#> Sep 2012 1537.4007 1537.6522 1536.0488 1538.3935 1539.6035 1538.1140 1541.5796
#> Oct 2012 1518.1891 1518.0942 1517.9519 1506.4486 1507.8972 1506.4390 1509.7436
#> Nov 2012 1521.2511 1520.5573 1520.3253 1522.4471 1515.8918 1514.4709 1517.9523
#> Dec 2012 1542.4575 1541.9678 1541.6341 1542.5092 1543.8878 1542.2255 1545.8788
#> Jan 2013 1520.4908 1520.1098 1519.7055 1517.7784 1518.3610 1517.6945 1504.2847
#> Feb 2013 1535.7600 1535.6518 1535.2666 1535.1891 1534.6185 1533.9689 1537.8484
#> Mar 2013 1531.8448 1532.1675 1531.8910 1532.1856 1532.2160 1531.8783 1533.9149
#> Apr 2013 1511.3470 1511.8718 1511.7126 1510.5548 1510.7734 1514.5944 1511.2193
#> May 2013 1518.4536 1519.5810 1519.7450 1520.5614 1520.9074 1520.5455 1521.7895
#> Jun 2013 1521.4335 1525.7274 1526.7967 1531.5913 1532.2630 1544.0582 1535.6396
#> Jul 2013 1410.5230 1415.5930 1417.6741 1418.7027 1418.4469 1410.4404 1410.9151
#> Aug 2013 NaN 1527.3931 1528.5319 1531.0886 1532.3909 1531.8655 1534.7880
#> Sep 2013 NaN NaN 1511.1315 1513.9799 1515.6605 1515.0939 1518.3520
#> Oct 2013 NaN NaN NaN 1531.1601 1533.0680 1532.4457 1535.9676
#> Nov 2013 NaN NaN NaN NaN 1527.0751 1526.4240 1530.2983
#> Dec 2013 NaN NaN NaN NaN NaN 1511.0433 1514.9381
#> Jan 2014 NaN NaN NaN NaN NaN NaN 1562.4815
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 50 Series 51 Series 52 Series 53 Series 54 Series 55 Series 56
#> Apr 1982 489.7350 489.6399 489.6004 489.6014 489.6420 489.6182 489.5823
#> May 1982 478.2850 478.2334 478.2193 478.2224 478.2263 478.2445 478.2630
#> Jun 1982 486.8224 486.7872 486.7751 486.7710 486.7993 486.7528 486.6951
#> Jul 1982 485.1626 485.1522 485.1449 485.1440 485.1553 485.1416 485.1238
#> Aug 1982 491.0753 491.1000 491.0994 491.1033 491.0893 491.1257 491.1687
#> Sep 1982 497.1665 497.1461 497.1418 497.1348 497.1654 497.0976 497.0165
#> Oct 1982 480.9451 480.9930 480.9981 481.0040 480.9764 481.0353 481.1059
#> Nov 1982 485.9057 485.9150 485.9146 485.9132 485.9188 485.9058 485.8901
#> Dec 1982 488.5313 488.5071 488.5017 488.4942 488.5278 488.4549 488.3673
#> Jan 1983 444.7359 444.8396 444.8568 444.8684 444.8063 444.9275 445.0746
#> Feb 1983 504.3758 504.3945 504.3954 504.3956 504.3936 504.3969 504.4010
#> Mar 1983 513.1602 512.9008 512.8444 512.8457 512.9033 512.8706 512.8218
#> Apr 1983 560.8532 561.0889 561.1792 561.1802 561.0777 561.1545 561.2636
#> May 1983 481.6823 481.5899 481.5700 481.5665 481.6012 481.5541 481.4940
#> Jun 1983 507.3685 507.3269 507.3141 507.3093 507.3413 507.2865 507.2189
#> Jul 1983 499.2522 499.2902 499.2913 499.2983 499.2711 499.3368 499.4147
#> Aug 1983 510.2818 510.2569 510.2487 510.2442 510.2698 510.2222 510.1640
#> Sep 1983 516.3225 516.3010 516.2975 516.2898 516.3220 516.2486 516.1609
#> Oct 1983 515.1188 515.1740 515.1808 515.1878 515.1542 515.2247 515.3096
#> Nov 1983 528.9186 528.9594 528.9648 528.9634 528.9625 528.9540 528.9449
#> Dec 1983 531.3546 531.3738 531.3758 531.3756 531.3740 531.3742 531.3746
#> Jan 1984 481.6006 481.6662 481.6779 481.6829 481.6515 481.7068 481.7747
#> Feb 1984 534.4324 534.4386 534.4383 534.4360 534.4448 534.4235 534.3982
#> Mar 1984 555.1536 555.1902 555.2553 555.2563 555.1809 555.2405 555.3254
#> Apr 1984 521.5644 521.4861 521.4395 521.4492 521.4653 521.5167 521.5686
#> May 1984 560.4129 560.2599 560.2310 560.2193 560.2944 560.1642 560.0037
#> Jun 1984 553.1637 553.1633 553.1580 553.1601 553.1582 553.1734 553.1897
#> Jul 1984 574.9029 574.9085 574.9062 574.9065 574.9077 574.9094 574.9099
#> Aug 1984 564.7609 564.7260 564.7170 564.7103 564.7450 564.6762 564.5919
#> Sep 1984 570.5452 570.6200 570.6333 570.6410 570.5977 570.6797 570.7789
#> Oct 1984 578.5614 578.5334 578.5279 578.5204 578.5540 578.4813 578.3938
#> Nov 1984 579.0362 579.1215 579.1357 579.1342 579.1241 579.1211 579.1208
#> Dec 1984 571.7701 571.8394 571.8501 571.8586 571.8154 571.9019 572.0079
#> Jan 1985 594.0496 594.0644 594.0692 594.0649 594.0754 594.0398 594.0003
#> Feb 1985 610.7431 610.7647 610.7679 610.7675 610.7653 610.7646 610.7661
#> Mar 1985 605.0555 604.9950 605.0092 605.0228 604.9571 605.0928 605.2593
#> Apr 1985 629.6389 629.5736 629.5457 629.5451 629.5787 629.5495 629.5099
#> May 1985 661.7434 661.5872 661.5585 661.5459 661.6239 661.4861 661.3156
#> Jun 1985 623.8299 623.8848 623.8894 623.9006 623.8543 623.9610 624.0845
#> Jul 1985 633.5935 633.5552 633.5487 633.5397 633.5802 633.4923 633.3814
#> Aug 1985 666.9840 666.9931 666.9927 666.9923 666.9941 666.9907 666.9804
#> Sep 1985 609.4781 609.5061 609.5135 609.5132 609.5062 609.5093 609.5106
#> Oct 1985 660.7811 660.7490 660.7441 660.7367 660.7696 660.6969 660.6087
#> Nov 1985 651.8174 652.0112 652.0449 652.0532 651.9851 652.0884 652.2203
#> Dec 1985 636.8430 636.8606 636.8646 636.8653 636.8582 636.8681 636.8869
#> Jan 1986 658.9095 658.8967 658.8976 658.8907 658.9151 658.8521 658.7855
#> Feb 1986 652.4084 652.4237 652.4270 652.4266 652.4245 652.4229 652.4297
#> Mar 1986 611.3943 611.0171 610.8813 610.9039 610.9703 611.0723 611.1731
#> Apr 1986 658.1737 658.4194 658.5310 658.5194 658.4397 658.4181 658.4169
#> May 1986 726.8554 726.7672 726.7495 726.7478 726.7736 726.7443 726.7028
#> Jun 1986 603.8903 603.8991 603.8975 603.9004 603.8914 603.9175 603.9394
#> Jul 1986 703.2218 703.1781 703.1723 703.1618 703.2072 703.1061 702.9712
#> Aug 1986 676.7479 676.8117 676.8205 676.8296 676.7863 676.8779 676.9724
#> Sep 1986 711.3212 711.2977 711.2981 711.2884 711.3240 711.2348 711.1145
#> Oct 1986 690.1746 690.1409 690.1373 690.1296 690.1621 690.0885 689.9857
#> Nov 1986 656.1844 656.4413 656.4879 656.5055 656.3887 656.5881 656.8199
#> Dec 1986 714.3865 714.3420 714.3398 714.3299 714.3686 714.2759 714.1673
#> Jan 1987 720.5769 720.6022 720.6128 720.6135 720.5989 720.6136 720.6483
#> Feb 1987 708.6145 708.6297 708.6381 708.6372 708.6312 708.6283 708.6557
#> Mar 1987 702.3354 702.3834 702.4460 702.4463 702.3759 702.4266 702.5418
#> Apr 1987 707.4649 707.1522 707.0110 707.0135 707.1601 707.0725 707.1224
#> May 1987 710.2750 710.2895 710.2931 710.3033 710.2615 710.3582 710.5061
#> Jun 1987 714.9470 714.9641 714.9591 714.9567 714.9713 714.9448 714.7001
#> Jul 1987 773.6385 773.5798 773.5741 773.5599 773.6191 773.4854 773.3684
#> Aug 1987 704.7580 704.7721 704.7732 704.7813 704.7509 704.8323 704.6351
#> Sep 1987 721.2510 721.2249 721.2266 721.2177 721.2487 721.1684 721.0889
#> Oct 1987 744.5078 744.5242 744.5308 744.5327 744.5186 744.5409 744.5818
#> Nov 1987 683.6607 683.8654 683.9057 683.9150 683.8361 683.9529 684.1096
#> Dec 1987 751.2168 751.1551 751.1523 751.1413 751.1850 751.0806 750.9796
#> Jan 1988 754.2312 754.3012 754.3211 754.3324 754.2685 754.3866 754.5717
#> Feb 1988 738.1852 738.1716 738.1802 738.1759 738.1817 738.1461 738.1802
#> Mar 1988 757.6587 757.3353 757.2398 757.2379 757.3495 757.2538 757.2161
#> Apr 1988 787.8418 787.9415 787.9530 787.9547 787.9351 787.9574 788.3929
#> May 1988 744.8656 744.8498 744.8560 744.8567 744.8464 744.8548 744.9466
#> Jun 1988 757.7623 757.8740 757.8790 757.8827 757.8640 757.8979 757.5866
#> Jul 1988 756.1572 756.2005 756.1989 756.2034 756.1900 756.2425 756.2377
#> Aug 1988 749.8620 749.6605 749.6167 749.6050 749.7000 749.5787 748.5333
#> Sep 1988 776.8915 776.8607 776.8701 776.8625 776.8808 776.8158 777.0759
#> Oct 1988 773.0025 773.0874 773.1090 773.1213 773.0513 773.1795 773.3945
#> Nov 1988 785.6821 785.8027 785.8338 785.8319 785.8038 785.8085 785.8702
#> Dec 1988 809.9259 809.9207 809.9306 809.9288 809.9238 809.9128 809.9585
#> Jan 1989 753.6047 753.6137 753.6270 753.6279 753.6091 753.6248 753.7143
#> Feb 1989 768.5016 768.4994 768.5135 768.5114 768.5024 768.4899 768.5836
#> Mar 1989 793.1981 792.7942 792.6589 792.6585 792.8079 792.6930 792.6613
#> Apr 1989 786.5758 786.8709 786.9373 786.9469 786.8373 786.9732 787.7529
#> May 1989 770.3914 770.3445 770.3518 770.3423 770.3682 770.2798 770.3055
#> Jun 1989 815.7108 815.9229 815.9367 815.9463 815.8967 815.9873 815.5827
#> Jul 1989 799.0539 799.0770 799.0568 799.0592 799.0755 799.1059 798.9528
#> Aug 1989 835.0069 834.6813 834.6038 834.5921 834.7277 834.5987 832.7935
#> Sep 1989 821.8825 821.9110 821.9388 821.9438 821.8958 821.9582 822.7388
#> Oct 1989 784.3793 784.4043 784.4204 784.4213 784.3989 784.4151 784.5586
#> Nov 1989 827.8743 827.9384 827.9627 827.9593 827.9439 827.9263 828.0304
#> Dec 1989 818.9034 818.9651 818.9874 818.9963 818.9376 819.0325 819.2565
#> Jan 1990 804.7085 804.6606 804.6666 804.6572 804.6840 804.5966 804.6003
#> Feb 1990 813.1729 813.1676 813.1828 813.1803 813.1712 813.1533 813.2558
#> Mar 1990 854.8490 855.1769 855.3345 855.3259 855.1822 855.2170 855.4163
#> Apr 1990 792.2359 791.9160 791.7324 791.7479 791.8921 791.8845 792.4347
#> May 1990 820.8651 820.8257 820.8365 820.8263 820.8502 820.7558 820.7696
#> Jun 1990 863.7360 864.0586 864.0887 864.1129 863.9914 864.2263 864.0349
#> Jul 1990 792.6150 792.5597 792.5107 792.5022 792.5918 792.5078 792.0154
#> Aug 1990 875.9761 875.5848 875.4680 875.4579 875.6330 875.5083 873.4570
#> Sep 1990 811.6817 811.7751 811.8193 811.8370 811.7249 811.9139 813.1219
#> Oct 1990 804.3259 804.2925 804.3018 804.2909 804.3192 804.2185 804.2232
#> Nov 1990 833.0051 833.0096 833.0260 833.0202 833.0220 832.9743 833.0411
#> Dec 1990 823.7549 823.8307 823.8583 823.8672 823.8023 823.9001 824.1305
#> Jan 1991 821.8048 821.7702 821.7839 821.7741 821.7933 821.7068 821.7080
#> Feb 1991 833.1988 833.1994 833.2230 833.2193 833.2049 833.1804 833.2490
#> Mar 1991 813.6699 813.4230 813.3143 813.3361 813.3731 813.4807 813.6764
#> Apr 1991 832.7886 833.0489 833.1394 833.1259 833.0744 833.0109 833.5601
#> May 1991 827.9378 827.8905 827.9075 827.8953 827.9195 827.8082 827.7822
#> Jun 1991 777.9049 778.2584 778.3026 778.3350 778.1669 778.4869 778.4310
#> Jul 1991 882.7099 882.5960 882.4719 882.4563 882.6612 882.4827 881.8363
#> Aug 1991 900.5839 900.2450 900.1275 900.1282 900.2632 900.2379 898.4352
#> Sep 1991 803.3542 803.3801 803.4194 803.4253 803.3618 803.4286 804.4765
#> Oct 1991 866.5077 866.4626 866.4758 866.4625 866.4950 866.3651 866.3504
#> Nov 1991 856.7707 856.8307 856.8585 856.8640 856.8110 856.8692 857.0837
#> Dec 1991 842.5889 842.6051 842.6257 842.6239 842.6060 842.5925 842.6959
#> Jan 1992 872.4593 872.4080 872.4177 872.4063 872.4345 872.3930 872.3621
#> Feb 1992 887.1899 887.2451 887.2816 887.2868 887.2252 887.2868 887.4348
#> Mar 1992 831.7359 831.9866 832.1186 832.1132 831.9855 832.0239 832.1367
#> Apr 1992 877.9997 877.6965 877.5649 877.5670 877.7028 877.6022 877.8584
#> May 1992 889.4059 889.4935 889.5406 889.5517 889.4563 889.5756 889.7731
#> Jun 1992 844.8217 845.0014 845.0358 845.0433 844.9781 845.0503 844.8706
#> Jul 1992 873.5522 873.4591 873.2845 873.2754 873.5177 873.3792 872.7178
#> Aug 1992 856.0859 855.8978 855.7722 855.7829 855.8844 855.9265 854.8412
#> Sep 1992 880.8793 880.8383 880.8774 880.8727 880.8488 880.8052 881.7604
#> Oct 1992 910.5695 910.5847 910.6137 910.6110 910.5865 910.5565 910.6203
#> Nov 1992 885.7553 885.8142 885.8454 885.8509 885.7936 885.8465 886.0173
#> Dec 1992 865.0261 864.9780 864.9904 864.9776 865.0090 864.8814 864.8155
#> Jan 1993 910.1703 910.2521 910.2789 910.2926 910.2075 910.4815 910.7048
#> Feb 1993 878.6845 878.6839 878.7100 878.7065 878.6887 878.6672 878.6497
#> Mar 1993 888.6187 888.7658 888.8775 888.8612 888.7969 888.7278 888.6401
#> Apr 1993 884.4465 884.1933 884.1130 884.1118 884.2039 884.1192 884.1625
#> May 1993 916.3408 916.4155 916.4716 916.4824 916.3795 916.5080 916.6461
#> Jun 1993 911.4275 911.5187 911.5664 911.5681 911.5097 911.5421 911.4315
#> Jul 1993 858.1063 858.1124 857.9269 857.9373 858.1245 858.1756 857.8827
#> Aug 1993 856.4604 856.3332 856.2083 856.2033 856.3529 856.0416 855.4620
#> Sep 1993 908.2764 908.2434 908.2532 908.2516 908.2463 908.2737 908.9161
#> Oct 1993 900.2485 900.3169 900.3613 900.3701 900.2868 900.3791 900.5260
#> Nov 1993 883.8358 883.8095 883.8304 883.8231 883.8252 883.7575 883.7277
#> Dec 1993 894.8273 894.7746 894.7845 894.7723 894.8049 894.6872 894.5895
#> Jan 1994 888.2737 888.3341 888.3439 888.3576 888.2913 888.6305 888.8095
#> Feb 1994 908.0665 908.0668 908.0809 908.0788 908.0703 908.0673 908.0285
#> Mar 1994 932.4453 932.0952 931.9806 931.9790 932.1115 932.0165 931.8022
#> Apr 1994 918.0163 918.3353 918.5000 918.4952 918.3318 918.4192 918.4766
#> May 1994 911.5127 911.5093 911.5488 911.5479 911.5087 911.5315 911.4720
#> Jun 1994 943.3792 943.3624 943.4435 943.4391 943.3618 943.3440 943.3086
#> Jul 1994 869.2188 869.3120 869.1717 869.1971 869.2803 869.4926 869.5060
#> Aug 1994 928.6067 928.5384 928.4123 928.3905 928.5957 927.8753 927.7994
#> Sep 1994 954.0081 953.9828 953.9743 953.9757 953.9801 954.0758 954.3772
#> Oct 1994 954.6068 954.6701 954.7417 954.7515 954.6382 954.7464 954.8325
#> Nov 1994 910.9740 910.9335 910.9770 910.9690 910.9524 910.8806 910.7648
#> Dec 1994 956.8476 956.8629 956.9039 956.9050 956.8575 956.8721 956.8750
#> Jan 1995 887.0605 887.0446 886.8390 886.8417 887.0410 887.4670 887.4732
#> Feb 1995 934.0067 934.0057 934.0048 934.0042 934.0072 933.9723 933.9343
#> Mar 1995 956.2947 956.4595 956.5526 956.5341 956.5000 956.3772 956.2474
#> Apr 1995 973.6772 973.5493 973.4719 973.4976 973.4885 973.6332 973.7937
#> May 1995 927.1072 927.0279 927.0303 927.0176 927.0628 926.9186 926.7324
#> Jun 1995 944.9429 944.8732 945.0033 944.9955 944.8635 944.7911 944.6280
#> Jul 1995 964.3298 964.4502 964.5851 964.6092 964.4205 965.0504 965.3056
#> Aug 1995 1012.0837 1012.0834 1011.9777 1011.9516 1012.1441 1011.0559 1011.1620
#> Sep 1995 930.4476 930.5074 930.4706 930.4875 930.4642 930.6787 930.8343
#> Oct 1995 938.6371 938.6211 938.6874 938.6857 938.6231 938.5515 938.4979
#> Nov 1995 967.8289 967.7660 967.8232 967.8131 967.7919 967.6356 967.4878
#> Dec 1995 984.2771 984.3674 984.4369 984.4525 984.3230 984.4211 984.5867
#> Jan 1996 970.9766 970.8913 970.2334 970.2263 970.9312 971.7407 971.6196
#> Feb 1996 974.8210 974.7978 974.8000 974.7966 974.8104 974.6777 974.6249
#> Mar 1996 963.3967 963.5815 963.6396 963.6518 963.5462 963.6039 963.7958
#> Apr 1996 960.5779 960.4348 960.3842 960.3795 960.4560 960.2704 960.1557
#> May 1996 968.6413 968.5642 968.5515 968.5393 968.6016 968.3847 968.2256
#> Jun 1996 974.4481 974.5192 974.7590 974.7792 974.4026 974.5077 974.6679
#> Jul 1996 958.2143 958.1668 958.5972 958.5834 958.2283 958.8976 958.7682
#> Aug 1996 1035.0920 1035.1746 1035.0759 1035.0637 1035.1988 1034.1606 1034.2465
#> Sep 1996 907.6266 907.6890 907.6416 907.6590 907.6470 907.8012 907.9843
#> Oct 1996 949.3128 949.2297 949.2805 949.2678 949.2650 949.0140 948.8428
#> Nov 1996 982.6762 982.6849 982.7559 982.7589 982.6764 982.5785 982.5960
#> Dec 1996 965.5671 965.5788 965.6429 965.6459 965.5721 965.4804 965.5012
#> Jan 1997 975.2348 975.1749 974.1029 974.0980 975.2230 976.4263 976.3440
#> Feb 1997 1002.1869 1002.1880 1002.2034 1002.2047 1002.1893 1002.0336 1002.0434
#> Mar 1997 984.3832 984.0194 983.8424 983.8698 983.9702 983.9172 984.0206
#> Apr 1997 946.3714 946.7638 946.9420 946.9230 946.8031 946.6075 946.6145
#> May 1997 1014.5342 1014.5367 1014.5264 1014.5276 1014.5415 1014.3905 1014.4166
#> Jun 1997 893.0629 893.0261 893.2739 893.2810 892.9190 892.7239 892.6891
#> Jul 1997 1008.1698 1008.1227 1008.9062 1008.8810 1008.2244 1009.3201 1009.1513
#> Aug 1997 982.0428 982.1929 982.1256 982.1318 982.1620 981.2939 981.3791
#> Sep 1997 1014.5908 1014.5732 1014.4681 1014.4738 1014.5640 1014.5212 1014.5736
#> Oct 1997 996.2862 996.2039 996.2239 996.2123 996.2370 995.9279 995.7849
#> Nov 1997 1013.9707 1014.0591 1014.1168 1014.1342 1014.0122 1014.0017 1014.2077
#> Dec 1997 978.9986 978.9311 978.9647 978.9548 978.9625 978.7009 978.5826
#> Jan 1998 1067.3575 1067.3988 1066.0238 1066.0339 1067.4163 1069.0798 1069.2004
#> Feb 1998 989.9144 989.9152 989.9449 989.9457 989.9196 989.7665 989.7813
#> Mar 1998 988.1062 988.3873 988.5367 988.5295 988.4033 988.1964 988.2640
#> Apr 1998 1028.2931 1027.9881 1027.8730 1027.8735 1028.0098 1027.7494 1027.6317
#> May 1998 998.7624 998.8482 998.8593 998.8737 998.8194 998.8095 998.9982
#> Jun 1998 914.5427 914.4152 914.6719 914.6689 914.3108 913.8150 913.6003
#> Jul 1998 1070.1868 1070.1324 1071.0246 1070.9919 1070.2676 1071.4421 1071.2262
#> Aug 1998 1027.5297 1027.6535 1027.6004 1027.6119 1027.6073 1026.9667 1027.0831
#> Sep 1998 1015.5850 1015.5531 1015.4612 1015.4632 1015.5511 1015.4183 1015.4158
#> Oct 1998 1052.4296 1052.4351 1052.4432 1052.4471 1052.4260 1052.2559 1052.2913
#> Nov 1998 1024.5262 1024.5380 1024.5598 1024.5640 1024.5295 1024.3915 1024.4390
#> Dec 1998 1027.8203 1027.7569 1027.7974 1027.7880 1027.7872 1027.5292 1027.4251
#> Jan 1999 1102.0014 1102.1437 1100.7394 1100.7640 1102.1222 1103.9048 1104.2087
#> Feb 1999 1025.4697 1025.4709 1025.4990 1025.4995 1025.4750 1025.3233 1025.3407
#> Mar 1999 1042.3712 1042.1128 1042.0594 1042.0513 1042.1538 1041.6936 1041.5178
#> Apr 1999 1041.6077 1041.7819 1041.8775 1041.8622 1041.8242 1041.5921 1041.5438
#> May 1999 1043.0000 1043.0959 1043.1076 1043.1229 1043.0651 1043.0680 1043.2741
#> Jun 1999 966.0933 965.9508 966.1749 966.1729 965.8298 965.1787 964.9344
#> Jul 1999 1088.9655 1089.0016 1089.9055 1089.8854 1089.1319 1090.5464 1090.5169
#> Aug 1999 1056.9461 1056.9591 1056.9050 1056.9080 1056.9328 1056.4111 1056.3936
#> Sep 1999 1085.9451 1085.8916 1085.7950 1085.7920 1085.8954 1085.6438 1085.5715
#> Oct 1999 1085.2540 1085.3542 1085.3387 1085.3586 1085.2987 1085.2757 1085.4984
#> Nov 1999 1076.5218 1076.4604 1076.4303 1076.4220 1076.4860 1076.2190 1076.1136
#> Dec 1999 1074.0384 1073.9678 1074.0007 1073.9896 1074.0019 1073.7290 1073.6101
#> Jan 2000 1080.9506 1081.0947 1079.9520 1079.9763 1081.0636 1082.5851 1082.8867
#> Feb 2000 1072.3092 1072.2862 1072.3196 1072.3153 1072.3017 1072.1563 1072.1194
#> Mar 2000 1070.4857 1070.7174 1070.9046 1070.8821 1070.7726 1070.3232 1070.2318
#> Apr 2000 1101.9968 1101.8711 1101.8083 1101.8374 1101.8084 1101.9013 1102.1366
#> May 2000 1069.5706 1069.5006 1069.5109 1069.4976 1069.5456 1069.3184 1069.1789
#> Jun 2000 1256.6336 1256.4583 1256.6700 1256.6661 1256.3268 1255.4521 1255.1505
#> Jul 2000 897.2774 897.3598 897.8691 897.8660 897.4514 898.4725 898.5876
#> Aug 2000 1177.6479 1177.5420 1177.4732 1177.4616 1177.5545 1177.1626 1176.9544
#> Sep 2000 1157.7248 1157.7492 1157.6945 1157.7024 1157.7140 1157.5915 1157.6487
#> Oct 2000 1102.7897 1102.8097 1102.7660 1102.7714 1102.7917 1102.6904 1102.7385
#> Nov 2000 1093.6332 1093.5980 1093.5433 1093.5395 1093.6063 1093.4277 1093.3797
#> Dec 2000 1151.4684 1151.5860 1151.6518 1151.6721 1151.5289 1151.6158 1151.8804
#> Jan 2001 1114.1445 1114.1015 1113.3626 1113.3546 1114.1448 1114.8661 1114.7788
#> Feb 2001 1140.1682 1140.1696 1140.1888 1140.1884 1140.1719 1140.1264 1140.1337
#> Mar 2001 1214.5111 1214.8325 1215.0311 1215.0231 1214.8447 1214.5784 1214.6607
#> Apr 2001 1106.2823 1106.0940 1106.0295 1106.0416 1106.0743 1106.0857 1106.1272
#> May 2001 1146.9652 1146.9024 1146.9234 1146.9111 1146.9411 1146.7975 1146.6660
#> Jun 2001 1101.6181 1101.5703 1101.6681 1101.6783 1101.4495 1100.9316 1100.8673
#> Jul 2001 1147.6143 1147.5970 1147.9217 1147.9024 1147.7850 1148.5984 1148.5327
#> Aug 2001 1121.9524 1121.8571 1121.8094 1121.7991 1121.8614 1121.5782 1121.3837
#> Sep 2001 1123.7033 1123.8142 1123.7831 1123.8043 1123.7317 1123.8244 1124.0566
#> Oct 2001 1156.1396 1156.0642 1156.0048 1155.9946 1156.0849 1155.9046 1155.7580
#> Nov 2001 1190.5450 1190.5203 1190.4486 1190.4481 1190.5131 1190.4175 1190.4065
#> Dec 2001 1209.0049 1209.1188 1209.1708 1209.1911 1209.0581 1209.2119 1209.4768
#> Jan 2002 1173.3340 1173.2798 1172.9977 1172.9887 1173.3099 1173.5234 1173.4313
#> Feb 2002 1174.1868 1174.1805 1174.1784 1174.1774 1174.1839 1174.1929 1174.2014
#> Mar 2002 1185.1272 1184.6866 1184.5073 1184.5411 1184.6224 1184.5249 1184.6680
#> Apr 2002 1196.6784 1197.2820 1197.5797 1197.5520 1197.3284 1197.3115 1197.3404
#> May 2002 1223.2710 1223.2020 1223.2192 1223.2071 1223.2369 1223.1465 1223.0199
#> Jun 2002 1219.6371 1219.6816 1219.7268 1219.7496 1219.5762 1219.4731 1219.4807
#> Jul 2002 1119.5471 1119.4047 1119.3918 1119.3601 1119.6186 1119.8255 1119.5540
#> Aug 2002 1251.4117 1251.4155 1251.4124 1251.4182 1251.3701 1251.3346 1251.3560
#> Sep 2002 1164.9994 1165.0214 1165.0087 1165.0122 1164.9778 1164.9604 1165.0192
#> Oct 2002 1235.2991 1235.2191 1235.1871 1235.1758 1235.2339 1235.1018 1234.9529
#> Nov 2002 1330.6217 1330.7170 1330.6808 1330.7017 1330.6393 1330.7785 1331.0365
#> Dec 2002 1249.5607 1249.5799 1249.6370 1249.6413 1249.5577 1249.5899 1249.6695
#> Jan 2003 1249.7164 1249.6412 1249.5994 1249.5881 1249.6705 1249.5521 1249.4324
#> Feb 2003 1250.8429 1250.8277 1250.7990 1250.7978 1250.8351 1250.8232 1250.8270
#> Mar 2003 1300.1931 1300.6707 1300.8492 1300.8606 1300.6314 1300.6837 1301.0259
#> Apr 2003 1289.8602 1289.5916 1289.4747 1289.4740 1289.6102 1289.5168 1289.4088
#> May 2003 1296.9479 1296.9624 1296.9581 1296.9615 1296.9655 1296.9922 1297.0515
#> Jun 2003 1283.7810 1283.7188 1283.6963 1283.6977 1283.7328 1283.7726 1283.4228
#> Jul 2003 1232.2438 1232.0703 1232.0270 1231.9927 1232.2802 1232.3681 1232.0994
#> Aug 2003 1298.9471 1299.0676 1299.0845 1299.1096 1298.9818 1299.1531 1299.4307
#> Sep 2003 1304.4205 1304.3645 1304.3515 1304.3376 1304.3535 1304.1163 1304.0400
#> Oct 2003 1342.2960 1342.1926 1342.1688 1342.1544 1342.1991 1342.0204 1341.8336
#> Nov 2003 1373.1053 1373.3175 1373.3166 1373.3585 1373.1407 1373.4708 1373.9706
#> Dec 2003 1300.3559 1300.2635 1300.2954 1300.2818 1300.2518 1300.0913 1299.9372
#> Jan 2004 1351.5235 1351.5452 1351.5338 1351.5404 1351.4813 1351.5240 1351.6040
#> Feb 2004 1327.7396 1327.7975 1327.7929 1327.8056 1327.7224 1327.8320 1327.9855
#> Mar 2004 1314.0503 1314.3465 1314.5007 1314.4769 1314.3600 1314.1358 1314.0734
#> Apr 2004 1344.9156 1344.6628 1344.5483 1344.5521 1345.0958 1344.8976 1344.9670
#> May 2004 1373.0331 1373.1369 1373.1443 1373.1640 1373.0516 1373.2064 1373.4471
#> Jun 2004 1398.7404 1398.5438 1398.4977 1398.4750 1398.6184 1398.7506 1397.9483
#> Jul 2004 1368.7186 1368.6202 1368.5767 1368.5588 1368.7066 1368.8209 1368.7645
#> Aug 2004 1359.5357 1359.5571 1359.5563 1359.5636 1359.4876 1359.5242 1359.6032
#> Sep 2004 1434.6089 1434.5688 1434.5659 1434.5515 1434.5016 1434.2351 1434.2085
#> Oct 2004 1412.8306 1412.9467 1412.9605 1412.9840 1412.8072 1412.9991 1413.2674
#> Nov 2004 1358.4365 1358.4233 1358.3983 1358.4013 1358.3176 1358.2453 1358.2777
#> Dec 2004 1355.0905 1354.9893 1355.0002 1354.9857 1354.9350 1354.7462 1354.5700
#> Jan 2005 1430.5790 1430.7182 1430.7348 1430.7618 1430.5698 1430.7993 1431.1204
#> Feb 2005 1426.7010 1426.6836 1426.6760 1426.6761 1426.6411 1426.6176 1426.6118
#> Mar 2005 1433.1846 1432.5069 1432.2261 1432.2340 1432.4810 1432.2970 1432.1165
#> Apr 2005 1285.3326 1286.1171 1286.4255 1286.4237 1286.9645 1286.9397 1287.5440
#> May 2005 1359.8410 1359.8204 1359.8140 1359.8108 1359.8172 1359.7513 1359.7250
#> Jun 2005 1449.7048 1449.5227 1449.4917 1449.4692 1449.7197 1450.1504 1449.1335
#> Jul 2005 1349.9217 1349.8936 1349.8566 1349.8534 1349.3575 1349.3864 1349.5332
#> Aug 2005 1396.6605 1396.5817 1396.5701 1396.5596 1396.5807 1396.4537 1396.3176
#> Sep 2005 1392.4670 1392.4496 1392.4633 1392.4502 1392.3857 1392.1191 1392.1358
#> Oct 2005 1377.7180 1377.8301 1377.8483 1377.8711 1377.7080 1377.9112 1378.1649
#> Nov 2005 1371.0282 1371.0067 1370.9921 1370.9931 1370.9191 1370.8576 1370.8601
#> Dec 2005 1393.4034 1393.4033 1393.4005 1393.4044 1393.2937 1393.2749 1393.3245
#> Jan 2006 1348.8689 1348.8849 1348.8821 1348.8892 1348.7784 1348.7759 1348.8830
#> Feb 2006 1423.2504 1423.2439 1423.2377 1423.2416 1423.1815 1423.1393 1423.2153
#> Mar 2006 1391.2810 1391.6895 1391.8800 1391.8578 1391.6686 1391.5297 1391.6091
#> Apr 2006 1438.0391 1437.9554 1437.8362 1437.8907 1439.2755 1439.2401 1440.2140
#> May 2006 1358.9784 1358.8795 1358.8784 1358.8630 1358.7703 1358.7222 1358.4320
#> Jun 2006 1416.2612 1416.0878 1416.0902 1416.0604 1416.6424 1417.5529 1416.0689
#> Jul 2006 1463.2976 1463.2210 1463.1615 1463.1527 1462.0069 1461.7255 1461.8605
#> Aug 2006 1430.6022 1430.5196 1430.5037 1430.4914 1430.5106 1430.2840 1430.2184
#> Sep 2006 1347.0916 1347.1802 1347.2086 1347.2150 1347.0635 1346.9174 1347.2272
#> Oct 2006 1406.0032 1406.0098 1406.0094 1406.0133 1405.9519 1405.8691 1405.9997
#> Nov 2006 1451.4984 1451.4616 1451.4499 1451.4470 1451.4188 1451.2356 1451.2937
#> Dec 2006 1448.7602 1448.8797 1448.8924 1448.9168 1448.7483 1448.8411 1449.2311
#> Jan 2007 1407.4882 1407.4426 1407.4255 1407.4264 1407.3072 1407.5876 1407.2283
#> Feb 2007 1438.0762 1438.0841 1438.0777 1438.0852 1438.0767 1437.9758 1438.1715
#> Mar 2007 1541.5784 1542.0549 1542.2375 1542.2367 1542.0230 1541.9995 1542.3896
#> Apr 2007 1386.7276 1386.5616 1386.4378 1386.4688 1387.9454 1387.6566 1388.4116
#> May 2007 1464.2067 1464.1312 1464.1509 1464.1398 1463.9250 1464.0661 1463.7031
#> Jun 2007 1489.5662 1489.5428 1489.6044 1489.5879 1490.4952 1492.0422 1490.4250
#> Jul 2007 1483.3682 1483.1048 1482.9731 1482.9313 1481.3340 1480.5743 1480.4102
#> Aug 2007 1521.4487 1521.3386 1521.3132 1521.2941 1521.3904 1521.0386 1520.9591
#> Sep 2007 1517.5986 1517.8304 1517.8770 1517.9064 1517.6858 1517.6835 1518.3449
#> Oct 2007 1501.2932 1501.1955 1501.1909 1501.1727 1501.2643 1500.8440 1500.8276
#> Nov 2007 1515.4054 1515.3652 1515.3828 1515.3731 1515.4350 1515.0559 1515.1765
#> Dec 2007 1526.8429 1527.0063 1527.0470 1527.0765 1526.8812 1526.8167 1527.4135
#> Jan 2008 1536.3240 1536.3579 1536.3728 1536.3939 1536.0585 1536.7969 1536.2728
#> Feb 2008 1513.3632 1513.3814 1513.4016 1513.4156 1513.4156 1513.1564 1513.5560
#> Mar 2008 1505.9057 1505.5286 1505.3199 1505.3784 1505.4207 1505.4431 1506.1162
#> Apr 2008 1546.3932 1546.7605 1546.6757 1546.6727 1547.6970 1547.8074 1548.1662
#> May 2008 1531.3837 1531.5057 1531.6051 1531.6351 1531.0865 1531.6845 1531.6849
#> Jun 2008 1402.6087 1402.6416 1402.8887 1402.8135 1405.6336 1407.7751 1405.5414
#> Jul 2008 1580.2391 1579.7830 1579.5158 1579.4150 1576.3067 1573.9879 1573.3257
#> Aug 2008 1494.7455 1494.8837 1494.9208 1494.9483 1494.8456 1494.8266 1495.3854
#> Sep 2008 1531.2512 1531.2280 1531.2496 1531.2429 1531.2457 1530.7872 1531.0630
#> Oct 2008 1514.7990 1514.7144 1514.7327 1514.7180 1514.8274 1514.2910 1514.4655
#> Nov 2008 1533.3201 1533.5527 1533.6332 1533.6704 1533.5600 1533.4878 1534.3375
#> Dec 2008 1581.1770 1581.1290 1581.1546 1581.1492 1581.1291 1580.4972 1580.8600
#> Jan 2009 1593.1550 1593.4132 1593.4786 1593.5467 1592.9036 1594.3559 1594.0158
#> Feb 2009 1461.6097 1461.7149 1461.7630 1461.7974 1461.7490 1461.4925 1462.2448
#> Mar 2009 1611.5955 1612.2141 1612.4771 1612.5021 1612.2263 1612.0416 1612.9471
#> Apr 2009 1594.3070 1593.2200 1592.2581 1592.3070 1592.8884 1593.6622 1593.2884
#> May 2009 1642.2178 1642.5212 1642.6739 1642.7537 1642.0468 1642.9109 1643.4954
#> Jun 2009 1490.0537 1490.0394 1490.5295 1490.3422 1496.4615 1499.8951 1495.8634
#> Jul 2009 1560.6613 1560.1458 1559.7682 1559.6195 1554.5428 1550.1617 1549.2985
#> Aug 2009 1582.3570 1582.4901 1582.5555 1582.5979 1582.4893 1582.5064 1583.2945
#> Sep 2009 1550.8359 1550.7954 1550.8381 1550.8415 1550.8422 1550.4809 1550.9200
#> Oct 2009 1616.0456 1616.0825 1616.1464 1616.1579 1616.1274 1615.8323 1616.4648
#> Nov 2009 1580.7504 1580.8691 1580.9536 1580.9720 1580.9056 1580.6443 1581.4252
#> Dec 2009 1536.5060 1536.5121 1536.5629 1536.5652 1536.4619 1535.7819 1536.4795
#> Jan 2010 1615.7666 1616.2063 1616.3165 1616.4167 1615.6063 1617.0517 1617.4412
#> Feb 2010 1539.0846 1539.2722 1539.3452 1539.4009 1539.3078 1538.8277 1540.1355
#> Mar 2010 1532.3144 1532.1169 1532.0407 1532.0908 1532.1926 1531.5208 1532.4973
#> Apr 2010 1524.4212 1523.8717 1522.9098 1522.9664 1522.3870 1523.6993 1523.2156
#> May 2010 1535.5892 1535.9903 1536.1448 1536.2618 1535.6214 1536.2287 1537.4073
#> Jun 2010 1539.2610 1539.3733 1540.0907 1539.8263 1549.2782 1556.8155 1548.6170
#> Jul 2010 1589.7739 1589.4361 1588.9743 1588.7919 1581.3396 1574.0304 1573.3032
#> Aug 2010 1543.1536 1543.1339 1543.1859 1543.2287 1543.3707 1542.8848 1544.0637
#> Sep 2010 1575.5300 1575.3220 1575.3663 1575.3820 1575.5658 1574.9268 1575.9783
#> Oct 2010 1555.1473 1555.0440 1555.1615 1555.1969 1555.2051 1554.8527 1556.3220
#> Nov 2010 1542.5690 1542.2759 1542.4115 1542.3823 1542.5111 1541.8087 1542.8804
#> Dec 2010 1516.6120 1516.3005 1516.4477 1516.3998 1516.2273 1515.3803 1516.5779
#> Jan 2011 1548.0007 1549.3183 1549.3011 1549.4696 1548.1554 1549.8304 1550.2403
#> Feb 2011 1548.8867 1548.6562 1548.8790 1548.8795 1548.3378 1548.0323 1549.6110
#> Mar 2011 1508.9412 1511.2456 1511.6294 1511.6025 1510.9205 1510.5239 1511.6841
#> Apr 2011 1584.6724 1582.8239 1580.6492 1580.6849 1578.9732 1580.9862 1580.5108
#> May 2011 1500.9802 1500.9229 1501.2743 1501.8550 1500.7521 1501.3427 1502.3752
#> Jun 2011 1455.8229 1456.0330 1456.8365 1456.4517 1470.3462 1481.1615 1469.4533
#> Jul 2011 1562.4478 1562.4106 1562.0231 1561.7979 1552.9834 1540.5516 1539.6402
#> Aug 2011 1486.2578 1485.9738 1485.9719 1486.0480 1485.7513 1486.1126 1490.4539
#> Sep 2011 1489.7932 1489.3960 1489.4024 1489.4033 1489.9537 1489.6796 1490.1930
#> Oct 2011 1493.1890 1492.8174 1492.9117 1492.9208 1492.7800 1492.0386 1493.5408
#> Nov 2011 1503.9254 1503.3029 1503.4815 1503.4074 1503.2725 1502.6366 1504.4362
#> Dec 2011 1519.0465 1518.4398 1518.7219 1518.6036 1518.0948 1517.5817 1519.3349
#> Jan 2012 1478.5605 1480.3490 1480.2242 1480.3472 1478.7063 1479.9191 1480.2479
#> Feb 2012 1512.7267 1511.9107 1512.3665 1512.2285 1511.1338 1510.7763 1512.4107
#> Mar 2012 1537.5239 1542.5939 1543.2859 1543.1494 1541.6799 1541.5698 1542.9769
#> Apr 2012 1510.7614 1508.2764 1505.1557 1504.9707 1502.3242 1504.4488 1503.8649
#> May 2012 1538.5662 1538.0206 1538.6586 1540.3042 1538.3461 1538.6716 1539.2644
#> Jun 2012 1606.0896 1606.6117 1607.6582 1607.0796 1628.5204 1643.3427 1626.9967
#> Jul 2012 1450.4050 1450.4562 1450.1339 1449.8248 1440.1736 1425.5433 1423.6412
#> Aug 2012 1552.0455 1551.5822 1551.5449 1551.6763 1550.6971 1552.3026 1561.0534
#> Sep 2012 1540.7280 1540.3510 1540.3596 1540.3644 1541.2495 1541.6985 1542.1372
#> Oct 2012 1508.6760 1507.7532 1507.7617 1507.6712 1507.5985 1505.8006 1506.9084
#> Nov 2012 1516.5849 1515.5423 1515.7181 1515.5785 1515.1972 1514.4910 1517.1765
#> Dec 2012 1544.2274 1543.1967 1543.5828 1543.3816 1542.6050 1542.3491 1544.5961
#> Jan 2013 1502.5826 1505.1109 1504.7856 1504.8808 1502.7847 1503.7484 1503.7382
#> Feb 2013 1551.4755 1549.9305 1550.6439 1550.3404 1548.4910 1548.2869 1549.9347
#> Mar 2013 1531.0949 1538.2244 1538.8665 1538.6054 1536.5479 1536.7819 1537.8894
#> Apr 2013 1509.2984 1506.8036 1503.4076 1502.8960 1499.1628 1500.8611 1500.2301
#> May 2013 1522.5653 1521.5305 1522.4655 1525.2416 1522.1064 1522.5241 1522.4336
#> Jun 2013 1535.1015 1535.8220 1536.8829 1536.1799 1562.1133 1576.8971 1559.8062
#> Jul 2013 1414.3202 1414.4269 1414.1813 1413.7986 1403.6479 1387.9731 1385.0246
#> Aug 2013 1534.0918 1533.5758 1533.4751 1533.6829 1531.7088 1535.1342 1548.3098
#> Sep 2013 1517.1932 1516.5403 1516.4466 1516.3842 1517.8229 1518.6168 1517.6134
#> Oct 2013 1534.4159 1533.3225 1533.2592 1533.1074 1532.6973 1530.3510 1531.2114
#> Nov 2013 1528.3575 1527.1393 1527.3302 1527.1369 1526.2288 1525.8183 1529.4298
#> Dec 2013 1512.7158 1511.2185 1511.6522 1511.3161 1510.5509 1510.1812 1512.1110
#> Jan 2014 1559.9385 1562.6681 1562.3161 1562.2840 1560.0297 1560.4959 1560.6085
#> Feb 2014 1487.4175 1485.4604 1486.3536 1485.8822 1483.8093 1483.2503 1484.8004
#> Mar 2014 NaN 1498.0494 1499.4867 1499.0164 1496.2284 1496.2323 1497.2590
#> Apr 2014 NaN NaN 1537.0779 1536.2788 1532.6276 1533.3731 1532.7305
#> May 2014 NaN NaN NaN 1506.8862 1502.9800 1503.1902 1502.7838
#> Jun 2014 NaN NaN NaN NaN 1470.7750 1484.2903 1466.8401
#> Jul 2014 NaN NaN NaN NaN NaN 1509.2471 1505.3581
#> Aug 2014 NaN NaN NaN NaN NaN NaN 1464.2466
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 57 Series 58 Series 59 Series 60 Series 61 Series 62 Series 63
#> Apr 1982 489.5824 489.5784 489.6141 489.6085 489.6355 489.6365 489.6270
#> May 1982 478.2627 478.2672 478.2448 478.2525 478.2363 478.2340 478.2329
#> Jun 1982 486.6956 486.6855 486.7487 486.7327 486.7792 486.7835 486.7771
#> Jul 1982 485.1240 485.1211 485.1401 485.1357 485.1498 485.1509 485.1483
#> Aug 1982 491.1682 491.1765 491.1282 491.1416 491.1061 491.1025 491.1055
#> Sep 1982 497.0173 497.0021 497.0926 497.0682 497.1346 497.1413 497.1345
#> Oct 1982 481.1052 481.1184 481.0397 481.0608 481.0030 480.9972 481.0034
#> Nov 1982 485.8903 485.8874 485.9048 485.9001 485.9128 485.9141 485.9129
#> Dec 1982 488.3682 488.3519 488.4494 488.4232 488.4948 488.5019 488.4945
#> Jan 1983 445.0732 445.1000 444.9371 444.9800 444.8602 444.8487 444.8626
#> Feb 1983 504.4010 504.4017 504.3972 504.3984 504.3950 504.3947 504.3952
#> Mar 1983 512.8219 512.8167 512.8648 512.8575 512.8946 512.8958 512.8823
#> Apr 1983 561.2631 561.2774 561.1657 561.1866 561.1028 561.0984 561.1223
#> May 1983 481.4945 481.4844 481.5495 481.5338 481.5818 481.5858 481.5778
#> Jun 1983 507.2196 507.2076 507.2818 507.2629 507.3175 507.3225 507.3153
#> Jul 1983 499.4139 499.4287 499.3414 499.3653 499.3013 499.2947 499.3007
#> Aug 1983 510.1645 510.1540 510.2183 510.2015 510.2488 510.2533 510.2475
#> Sep 1983 516.1618 516.1453 516.2432 516.2167 516.2886 516.2958 516.2887
#> Oct 1983 515.3087 515.3244 515.2301 515.2553 515.1860 515.1791 515.1866
#> Nov 1983 528.9450 528.9429 528.9537 528.9502 528.9580 528.9590 528.9593
#> Dec 1983 531.3747 531.3746 531.3743 531.3742 531.3739 531.3739 531.3743
#> Jan 1984 481.7740 481.7861 481.7115 481.7307 481.6757 481.6706 481.6776
#> Feb 1984 534.3985 534.3936 534.4221 534.4144 534.4350 534.4372 534.4352
#> Mar 1984 555.3249 555.3365 555.2491 555.2658 555.2009 555.1973 555.2148
#> Apr 1984 521.5677 521.5809 521.5174 521.5399 521.4942 521.4874 521.4831
#> May 1984 560.0052 559.9766 560.1530 560.1078 560.2377 560.2497 560.2328
#> Jun 1984 553.1895 553.1931 553.1736 553.1795 553.1658 553.1641 553.1645
#> Jul 1984 574.9099 574.9103 574.9085 574.9092 574.9088 574.9085 574.9082
#> Aug 1984 564.5926 564.5774 564.6698 564.6454 564.7143 564.7209 564.7131
#> Sep 1984 570.7780 570.7961 570.6856 570.7145 570.6340 570.6262 570.6360
#> Oct 1984 578.3947 578.3784 578.4757 578.4496 578.5211 578.5282 578.5208
#> Nov 1984 579.1209 579.1197 579.1224 579.1202 579.1211 579.1220 579.1243
#> Dec 1984 572.0069 572.0260 571.9100 571.9407 571.8541 571.8458 571.8554
#> Jan 1985 594.0007 593.9925 594.0394 594.0261 594.0585 594.0622 594.0600
#> Feb 1985 610.7661 610.7658 610.7667 610.7661 610.7646 610.7648 610.7653
#> Mar 1985 605.2577 605.2882 605.1049 605.1534 605.0179 605.0048 605.0194
#> Apr 1985 629.5101 629.5045 629.5462 629.5377 629.5684 629.5703 629.5625
#> May 1985 661.3171 661.2869 661.4732 661.4252 661.5637 661.5765 661.5589
#> Jun 1985 624.0832 624.1073 623.9647 624.0033 623.9029 623.8924 623.9026
#> Jul 1985 633.3825 633.3628 633.4801 633.4486 633.5404 633.5490 633.5401
#> Aug 1985 666.9804 666.9797 666.9842 666.9830 666.9926 666.9929 666.9925
#> Sep 1985 609.5106 609.5110 609.5060 609.5065 609.5067 609.5067 609.5084
#> Oct 1985 660.6096 660.5932 660.6907 660.6645 660.7367 660.7438 660.7365
#> Nov 1985 652.2192 652.2414 652.1010 652.1359 652.0289 652.0197 652.0351
#> Dec 1985 636.8868 636.8888 636.8759 636.8791 636.8623 636.8615 636.8630
#> Jan 1986 658.7863 658.7719 658.8562 658.8330 658.8860 658.8924 658.8870
#> Feb 1986 652.4298 652.4292 652.4314 652.4305 652.4234 652.4237 652.4241
#> Mar 1986 611.1712 611.1990 611.0768 611.1249 611.0327 611.0175 611.0008
#> Apr 1986 658.4177 658.4091 658.4257 658.4091 658.4171 658.4233 658.4425
#> May 1986 726.7030 726.6970 726.7374 726.7282 726.7621 726.7644 726.7585
#> Jun 1986 603.9391 603.9452 603.9097 603.9195 603.9036 603.9009 603.9030
#> Jul 1986 702.9724 702.9499 703.0837 703.0476 703.1612 703.1711 703.1612
#> Aug 1986 676.9714 676.9919 676.8683 676.9012 676.8275 676.8186 676.8284
#> Sep 1986 711.1156 711.0955 711.2133 711.1809 711.2828 711.2918 711.2841
#> Oct 1986 689.9866 689.9700 690.0684 690.0418 690.1285 690.1358 690.1287
#> Nov 1986 656.8177 656.8612 656.5919 656.6608 656.4754 656.4570 656.4833
#> Dec 1986 714.1685 714.1474 714.2722 714.2383 714.3262 714.3354 714.3268
#> Jan 1987 720.6482 720.6509 720.6321 720.6362 720.6046 720.6034 720.6066
#> Feb 1987 708.6558 708.6546 708.6598 708.6576 708.6290 708.6296 708.6308
#> Mar 1987 702.5415 702.5508 702.4777 702.4910 702.3922 702.3893 702.4054
#> Apr 1987 707.1228 707.1071 707.2418 707.2199 707.1358 707.1395 707.1050
#> May 1987 710.5049 710.5267 710.3978 710.4329 710.3057 710.2961 710.3052
#> Jun 1987 714.7003 714.6950 714.7282 714.7197 714.9598 714.9622 714.9587
#> Jul 1987 773.3699 773.3419 773.5070 773.4619 773.5578 773.5711 773.5587
#> Aug 1987 704.6340 704.6536 704.5356 704.5670 704.7875 704.7796 704.7883
#> Sep 1987 721.0899 721.0718 721.1778 721.1485 721.2114 721.2196 721.2129
#> Oct 1987 744.5815 744.5863 744.5564 744.5639 744.5281 744.5261 744.5293
#> Nov 1987 684.1084 684.1333 683.9752 684.0143 683.8854 683.8751 683.8929
#> Dec 1987 750.9809 750.9565 751.1010 751.0618 751.1373 751.1476 751.1378
#> Jan 1988 754.5705 754.5950 754.4456 754.4848 754.3209 754.3096 754.3235
#> Feb 1988 738.1807 738.1707 738.2286 738.2123 738.1647 738.1685 738.1663
#> Mar 1988 757.2168 757.1968 757.3453 757.3155 757.3167 757.3227 757.2954
#> Apr 1988 788.3928 788.3948 788.3802 788.3831 787.9444 787.9425 787.9461
#> May 1988 744.9465 744.9469 744.9448 744.9453 744.8501 744.8493 744.8504
#> Jun 1988 757.5856 757.6045 757.4914 757.5218 757.8797 757.8762 757.8791
#> Jul 1988 756.2370 756.2518 756.1597 756.1832 756.2126 756.2078 756.2151
#> Aug 1988 748.5345 748.5101 748.6582 748.6192 749.6461 749.6576 749.6436
#> Sep 1988 777.0768 777.0597 777.1594 777.1316 776.8502 776.8569 776.8523
#> Oct 1988 773.3931 773.4202 773.2555 773.2988 773.1083 773.0961 773.1109
#> Nov 1988 785.8703 785.8691 785.8682 785.8656 785.8028 785.8033 785.8091
#> Dec 1988 809.9588 809.9541 809.9803 809.9726 809.9179 809.9193 809.9196
#> Jan 1989 753.7142 753.7149 753.7090 753.7099 753.6152 753.6140 753.6172
#> Feb 1989 768.5839 768.5778 768.6120 768.6021 768.4957 768.4972 768.4978
#> Mar 1989 792.6622 792.6379 792.8248 792.7892 792.7711 792.7775 792.7405
#> Apr 1989 787.7518 787.7759 787.6154 787.6525 786.8930 786.8815 786.9050
#> May 1989 770.3067 770.2838 770.4195 770.3825 770.3275 770.3364 770.3284
#> Jun 1989 815.5803 815.6242 815.3607 815.4312 815.9382 815.9292 815.9375
#> Jul 1989 798.9522 798.9638 798.8910 798.9093 799.0884 799.0857 799.0901
#> Aug 1989 832.7948 832.7701 832.9216 832.8826 834.6715 834.6834 834.6667
#> Sep 1989 822.7384 822.7469 822.6920 822.7052 821.9224 821.9169 821.9259
#> Oct 1989 784.5586 784.5594 784.5524 784.5535 784.4052 784.4040 784.4073
#> Nov 1989 828.0309 828.0236 828.0616 828.0495 827.9336 827.9360 827.9382
#> Dec 1989 819.2555 819.2732 819.1655 819.1937 818.9792 818.9703 818.9823
#> Jan 1990 804.6016 804.5779 804.7188 804.6806 804.6434 804.6523 804.6452
#> Feb 1990 813.2563 813.2478 813.2974 813.2836 813.1619 813.1640 813.1643
#> Mar 1990 855.4168 855.4152 855.3813 855.3752 855.1814 855.1832 855.2145
#> Apr 1990 792.4342 792.4332 792.4971 792.5001 791.9104 791.9042 791.8673
#> May 1990 820.7709 820.7454 820.8966 820.8555 820.8071 820.8165 820.8075
#> Jun 1990 864.0302 864.1198 863.5812 863.7249 864.0985 864.0753 864.0977
#> Jul 1990 792.0161 792.0023 792.0839 792.0616 792.5544 792.5625 792.5526
#> Aug 1990 873.4582 873.4349 873.5801 873.5435 875.5815 875.5923 875.5705
#> Sep 1990 813.1202 813.1547 812.9432 812.9981 811.8089 811.7910 811.8127
#> Oct 1990 804.2246 804.1981 804.3549 804.3121 804.2729 804.2830 804.2741
#> Nov 1990 833.0419 833.0269 833.1139 833.0896 832.9988 833.0039 833.0020
#> Dec 1990 824.1296 824.1470 824.0403 824.0680 823.8443 823.8353 823.8494
#> Jan 1991 821.7093 821.6852 821.8277 821.7889 821.7517 821.7608 821.7567
#> Feb 1991 833.2496 833.2390 833.3003 833.2831 833.1907 833.1939 833.1972
#> Mar 1991 813.6747 813.6986 813.5977 813.6393 813.4351 813.4202 813.4097
#> Apr 1991 833.5616 833.5382 833.6523 833.6126 833.0351 833.0446 833.0560
#> May 1991 827.7838 827.7542 827.9294 827.8817 827.8676 827.8789 827.8704
#> Jun 1991 778.4254 778.5300 777.9012 778.0689 778.3115 778.2802 778.3131
#> Jul 1991 881.8379 881.8078 881.9891 881.9408 882.5897 882.6051 882.5685
#> Aug 1991 898.4351 898.4357 898.4377 898.4392 900.2604 900.2606 900.2414
#> Sep 1991 804.4761 804.4846 804.4287 804.4419 803.3933 803.3867 803.3905
#> Oct 1991 866.3521 866.3201 866.5099 866.4583 866.4382 866.4506 866.4333
#> Nov 1991 857.0833 857.0928 857.0334 857.0486 856.8379 856.8322 856.8367
#> Dec 1991 842.6962 842.6896 842.7279 842.7170 842.5999 842.6013 842.5998
#> Jan 1992 872.3636 872.3351 872.5061 872.4602 872.3834 872.3944 872.4530
#> Feb 1992 887.4344 887.4432 887.3885 887.4025 887.2504 887.2451 887.2564
#> Mar 1992 832.1370 832.1374 832.1036 832.1016 831.9890 831.9895 832.0173
#> Apr 1992 877.8592 877.8358 878.0212 877.9872 877.6728 877.6775 877.6420
#> May 1992 889.7720 889.7939 889.6607 889.6955 889.5085 889.4974 889.5128
#> Jun 1992 844.8679 844.9198 844.6055 844.6891 845.0113 845.0041 845.0106
#> Jul 1992 872.7188 872.6993 872.8196 872.7885 873.4725 873.4821 873.4337
#> Aug 1992 854.8400 854.8620 854.7333 854.7688 855.9278 855.9180 855.8737
#> Sep 1992 881.7613 881.7455 881.8362 881.8104 880.8327 880.8365 880.8246
#> Oct 1992 910.6207 910.6120 910.6625 910.6483 910.5773 910.5795 910.5679
#> Nov 1992 886.0169 886.0263 885.9683 885.9833 885.8208 885.8151 885.8142
#> Dec 1992 864.8172 864.7867 864.9683 864.9193 864.9539 864.9659 864.9479
#> Jan 1993 910.7033 910.7311 910.5659 910.6104 910.2667 910.2537 910.4080
#> Feb 1993 878.6502 878.6410 878.6949 878.6802 878.6745 878.6777 878.6845
#> Mar 1993 888.6417 888.6171 888.7374 888.6959 888.7476 888.7593 888.7849
#> Apr 1993 884.1634 884.1415 884.3052 884.2728 884.1702 884.1762 884.1623
#> May 1993 916.6450 916.6673 916.5321 916.5678 916.4291 916.4185 916.4482
#> Jun 1993 911.4299 911.4598 911.2782 911.3264 911.5176 911.5158 911.5327
#> Jul 1993 857.8815 857.9026 857.7819 857.8159 858.1643 858.1554 858.1281
#> Aug 1993 855.4626 855.4514 855.5188 855.5005 856.3275 856.3324 856.0697
#> Sep 1993 908.9165 908.9087 908.9524 908.9397 908.2461 908.2468 908.2779
#> Oct 1993 900.5251 900.5427 900.4359 900.4640 900.3281 900.3193 900.3297
#> Nov 1993 883.7287 883.7105 883.8191 883.7899 883.7939 883.8008 883.7951
#> Dec 1993 894.5911 894.5624 894.7334 894.6875 894.7516 894.7633 894.7516
#> Jan 1994 888.8080 888.8359 888.6717 888.7166 888.3481 888.3356 888.5590
#> Feb 1994 908.0288 908.0236 908.0542 908.0460 908.0624 908.0643 908.0775
#> Mar 1994 931.8031 931.7793 931.9605 931.9257 932.0717 932.0790 932.0681
#> Apr 1994 918.4766 918.4848 918.3960 918.4061 918.3449 918.3438 918.4008
#> May 1994 911.4721 911.4696 911.4843 911.4803 911.5059 911.5067 911.5355
#> Jun 1994 943.3084 943.3120 943.2934 943.2986 943.3311 943.3357 943.3735
#> Jul 1994 869.5032 869.5556 869.2465 869.3310 869.3880 869.3646 869.3647
#> Aug 1994 927.8019 927.7550 928.0333 927.9570 928.4978 928.5184 927.9899
#> Sep 1994 954.3773 954.3772 954.3749 954.3749 953.9973 953.9949 954.0647
#> Oct 1994 954.8314 954.8523 954.7258 954.7593 954.6854 954.6756 954.6914
#> Nov 1994 910.7658 910.7469 910.8590 910.8289 910.9191 910.9267 910.9221
#> Dec 1994 956.8749 956.8770 956.8628 956.8664 956.8660 956.8648 956.8639
#> Jan 1995 887.4729 887.4775 887.4530 887.4609 887.0446 887.0431 887.4546
#> Feb 1995 933.9343 933.9334 933.9385 933.9374 934.0050 934.0059 933.9747
#> Mar 1995 956.2490 956.2240 956.3429 956.3007 956.4436 956.4573 956.4417
#> Apr 1995 973.7911 973.8334 973.6112 973.6817 973.5761 973.5562 973.5294
#> May 1995 926.7338 926.7064 926.8717 926.8278 927.0050 927.0175 926.9870
#> Jun 1995 944.6289 944.6109 944.7361 944.7045 944.7889 944.7976 944.8536
#> Jul 1995 965.3030 965.3553 965.0279 965.1126 964.5646 964.5379 964.9086
#> Aug 1995 1011.1648 1011.1110 1011.4306 1011.3428 1012.0252 1012.0502 1011.1931
#> Sep 1995 930.8324 930.8683 930.6514 930.7094 930.5515 930.5343 930.5861
#> Oct 1995 938.4981 938.4945 938.5162 938.5106 938.6168 938.6185 938.5600
#> Nov 1995 967.4889 967.4666 967.6001 967.5646 967.7488 967.7587 967.6887
#> Dec 1995 984.5849 984.6197 984.4087 984.4651 984.3978 984.3828 984.3342
#> Jan 1996 971.6205 971.6030 971.7123 971.6851 970.8808 970.8898 971.7821
#> Feb 1996 974.6253 974.6178 974.6618 974.6506 974.7982 974.8021 974.6940
#> Mar 1996 963.7941 963.8278 963.6117 963.6653 963.6145 963.6014 963.5222
#> Apr 1996 960.1564 960.1398 960.2520 960.2269 960.4252 960.4322 960.3089
#> May 1996 968.2270 968.2002 968.3614 968.3189 968.5476 968.5599 968.4499
#> Jun 1996 974.6654 974.7078 974.4944 974.5555 974.4031 974.3861 974.4465
#> Jul 1996 958.7701 958.7412 958.8793 958.8343 958.2475 958.2526 958.9361
#> Aug 1996 1034.2477 1034.2250 1034.3590 1034.3210 1035.1414 1035.1531 1034.2238
#> Sep 1996 907.9823 908.0192 907.7975 907.8570 907.7352 907.7177 907.7067
#> Oct 1996 948.8443 948.8159 948.9870 948.9417 949.2078 949.2204 949.0830
#> Nov 1996 982.5956 982.6021 982.5635 982.5743 982.6907 982.6882 982.5623
#> Dec 1996 965.5009 965.5074 965.4657 965.4772 965.5916 965.5891 965.4613
#> Jan 1997 976.3445 976.3331 976.4048 976.3877 975.1777 975.1851 976.4534
#> Feb 1997 1002.0433 1002.0460 1002.0266 1002.0328 1002.2025 1002.2027 1002.0224
#> Mar 1997 984.0183 984.0498 983.9155 983.9728 984.0526 984.0362 983.8295
#> Apr 1997 946.6157 946.6023 946.6207 946.5967 946.7786 946.7900 946.6394
#> May 1997 1014.4164 1014.4192 1014.3973 1014.4041 1014.5597 1014.5601 1014.3770
#> Jun 1997 892.6882 892.6990 892.7126 892.7164 892.7776 892.7751 892.7771
#> Jul 1997 1009.1548 1009.1055 1009.3245 1009.2476 1008.2917 1008.2972 1009.3731
#> Aug 1997 981.3781 981.3949 981.3032 981.3276 982.1641 982.1593 981.2711
#> Sep 1997 1014.5731 1014.5831 1014.5280 1014.5442 1014.5876 1014.5823 1014.4962
#> Oct 1997 995.7862 995.7600 995.9212 995.8795 996.1788 996.1912 995.9937
#> Nov 1997 1014.2056 1014.2438 1014.0154 1014.0775 1014.0898 1014.0741 1013.9081
#> Dec 1997 978.5837 978.5611 978.6930 978.6587 978.9257 978.9364 978.7502
#> Jan 1998 1069.1991 1069.2217 1069.0853 1069.1238 1067.4384 1067.4319 1069.0214
#> Feb 1998 989.7812 989.7825 989.7659 989.7712 989.9400 989.9408 989.7525
#> Mar 1998 988.2642 988.2664 988.2058 988.2101 988.4254 988.4287 988.1817
#> Apr 1998 1027.6322 1027.6157 1027.7365 1027.7171 1028.0089 1028.0154 1027.7707
#> May 1998 998.9965 999.0284 998.8232 998.8786 998.9122 998.9001 998.7164
#> Jun 1998 913.6002 913.5894 913.7800 913.7405 914.0419 914.0511 913.9696
#> Jul 1998 1071.2308 1071.1674 1071.4437 1071.3447 1070.3676 1070.3734 1071.5055
#> Aug 1998 1027.0816 1027.1070 1026.9731 1027.0104 1027.6105 1027.6018 1026.9289
#> Sep 1998 1015.4157 1015.4169 1015.4182 1015.4199 1015.5437 1015.5433 1015.4195
#> Oct 1998 1052.2909 1052.2980 1052.2588 1052.2710 1052.4339 1052.4320 1052.2401
#> Nov 1998 1024.4385 1024.4468 1024.3954 1024.4104 1024.5501 1024.5475 1024.3676
#> Dec 1998 1027.4262 1027.4054 1027.5244 1027.4938 1027.7568 1027.7659 1027.5704
#> Jan 1999 1104.2057 1104.2608 1103.9250 1104.0164 1102.2151 1102.1947 1103.7641
#> Feb 1999 1025.3406 1025.3410 1025.3263 1025.3312 1025.4999 1025.5015 1025.3072
#> Mar 1999 1041.5191 1041.4886 1041.6807 1041.6390 1042.1279 1042.1423 1041.7473
#> Apr 1999 1041.5451 1041.5253 1041.5967 1041.5682 1041.8163 1041.8301 1041.6221
#> May 1999 1043.2723 1043.3059 1043.0843 1043.1441 1043.1729 1043.1617 1042.9642
#> Jun 1999 964.9339 964.9274 965.1333 965.0931 965.4994 965.5099 965.3665
#> Jul 1999 1090.5203 1090.4862 1090.5611 1090.5096 1089.3544 1089.3423 1090.5151
#> Aug 1999 1056.3932 1056.3968 1056.4051 1056.4064 1056.8707 1056.8721 1056.4344
#> Sep 1999 1085.5719 1085.5616 1085.6380 1085.6206 1085.8447 1085.8485 1085.6793
#> Oct 1999 1085.4961 1085.5382 1085.2898 1085.3583 1085.3730 1085.3561 1085.1755
#> Nov 1999 1076.1146 1076.0942 1076.2133 1076.1833 1076.4505 1076.4612 1076.2624
#> Dec 1999 1073.6114 1073.5872 1073.7250 1073.6898 1073.9642 1073.9735 1073.7755
#> Jan 2000 1082.8838 1082.9376 1082.6067 1082.6966 1081.1620 1081.1404 1082.4443
#> Feb 2000 1072.1199 1072.1092 1072.1578 1072.1454 1072.3086 1072.3132 1072.1630
#> Mar 2000 1070.2338 1070.2036 1070.3278 1070.2815 1070.7404 1070.7579 1070.3803
#> Apr 2000 1102.1338 1102.1804 1101.9143 1101.9977 1101.9462 1101.9259 1101.7617
#> May 2000 1069.1805 1069.1498 1069.3129 1069.2697 1069.5238 1069.5410 1069.3700
#> Jun 2000 1255.1498 1255.1444 1255.3928 1255.3455 1255.9254 1255.9415 1255.6905
#> Jul 2000 898.5887 898.5889 898.4856 898.4890 897.6888 897.6844 898.3902
#> Aug 2000 1176.9558 1176.9250 1177.1434 1177.0892 1177.4152 1177.4316 1177.2711
#> Sep 2000 1157.6479 1157.6617 1157.5951 1157.6158 1157.7001 1157.6907 1157.5701
#> Oct 2000 1102.7380 1102.7473 1102.6944 1102.7103 1102.7982 1102.7931 1102.6679
#> Nov 2000 1093.3803 1093.3692 1093.4316 1093.4163 1093.5884 1093.5797 1093.4385
#> Dec 2000 1151.8779 1151.9246 1151.6384 1151.7164 1151.6291 1151.6030 1151.4889
#> Jan 2001 1114.7797 1114.7611 1114.8643 1114.8379 1114.1055 1114.1121 1114.8989
#> Feb 2001 1140.1339 1140.1314 1140.1311 1140.1318 1140.1925 1140.1918 1140.1131
#> Mar 2001 1214.6609 1214.6629 1214.5934 1214.5988 1214.8766 1214.8819 1214.5581
#> Apr 2001 1106.1263 1106.1369 1106.0847 1106.1098 1106.1342 1106.1343 1106.0387
#> May 2001 1146.6674 1146.6388 1146.7895 1146.7499 1146.9218 1146.9447 1146.8481
#> Jun 2001 1100.8650 1100.8922 1100.8932 1100.9074 1101.2146 1101.2223 1101.0420
#> Jul 2001 1148.5358 1148.5007 1148.5884 1148.5367 1148.0124 1148.0533 1148.6008
#> Aug 2001 1121.3849 1121.3574 1121.5560 1121.5071 1121.7290 1121.7537 1121.6846
#> Sep 2001 1124.0544 1124.0982 1123.8513 1123.9197 1123.7726 1123.7216 1123.7154
#> Oct 2001 1155.7592 1155.7335 1155.8924 1155.8522 1156.0174 1156.0374 1155.9741
#> Nov 2001 1190.4068 1190.4022 1190.4261 1190.4215 1190.5064 1190.4888 1190.4082
#> Dec 2001 1209.4744 1209.5208 1209.2376 1209.3150 1209.1520 1209.1187 1209.0828
#> Jan 2002 1173.4326 1173.4112 1173.5312 1173.4996 1173.2711 1173.2541 1173.5491
#> Feb 2002 1174.2018 1174.1978 1174.2087 1174.2055 1174.1941 1174.1655 1174.1696
#> Mar 2002 1184.6655 1184.7033 1184.5371 1184.6069 1184.7301 1184.6790 1184.3941
#> Apr 2002 1197.3424 1197.3223 1197.3420 1197.3064 1197.2970 1197.2793 1197.3302
#> May 2002 1223.0215 1222.9929 1223.1503 1223.1083 1223.2019 1223.1932 1223.1864
#> Jun 2002 1219.4751 1219.5322 1219.3255 1219.3984 1219.4970 1219.7755 1219.6404
#> Jul 2002 1119.5583 1119.4920 1119.8014 1119.6994 1119.7071 1119.7635 1119.9306
#> Aug 2002 1251.3555 1251.3641 1251.3381 1251.3481 1251.3253 1251.3090 1251.3321
#> Sep 2002 1165.0194 1165.0248 1165.0028 1165.0092 1164.9468 1164.8519 1164.9069
#> Oct 2002 1234.9544 1234.9264 1235.0980 1235.0537 1235.1627 1235.1643 1235.1661
#> Nov 2002 1331.0346 1331.0770 1330.8194 1330.8890 1330.7240 1330.6485 1330.6348
#> Dec 2002 1249.6691 1249.6802 1249.6115 1249.6308 1249.5730 1249.5371 1249.5404
#> Jan 2003 1249.4341 1249.4069 1249.5646 1249.5220 1249.6178 1249.5870 1249.5858
#> Feb 2003 1250.8275 1250.8227 1250.8434 1250.8368 1250.8314 1250.7904 1250.7997
#> Mar 2003 1301.0241 1301.0713 1300.7333 1300.8063 1300.7265 1300.6646 1300.5375
#> Apr 2003 1289.4096 1289.3910 1289.5233 1289.4969 1289.5842 1289.5389 1289.5128
#> May 2003 1297.0512 1297.0572 1297.0170 1297.0299 1296.9857 1296.9197 1296.9294
#> Jun 2003 1283.4180 1283.4241 1283.4763 1283.4814 1283.6625 1284.2832 1284.1934
#> Jul 2003 1232.1045 1232.0354 1232.3896 1232.2819 1232.3196 1232.2693 1232.4439
#> Aug 2003 1299.4281 1299.4805 1299.1803 1299.2617 1299.0467 1298.9950 1299.0219
#> Sep 2003 1304.0431 1304.0122 1304.1990 1304.1487 1304.2398 1304.0621 1304.1009
#> Oct 2003 1341.8355 1341.8006 1342.0136 1341.9575 1342.1146 1342.1204 1342.1013
#> Nov 2003 1373.9661 1374.0552 1373.5206 1373.6635 1373.3169 1373.2383 1373.2276
#> Dec 2003 1299.9388 1299.9088 1300.0904 1300.0421 1300.1819 1300.1840 1300.1578
#> Jan 2004 1351.6036 1351.6156 1351.5421 1351.5606 1351.5032 1351.4764 1351.4811
#> Feb 2004 1327.9843 1328.0101 1327.8533 1327.8935 1327.7748 1327.7472 1327.7589
#> Mar 2004 1314.0759 1314.0468 1314.1676 1314.1142 1314.2917 1314.2487 1314.1714
#> Apr 2004 1344.9687 1344.9573 1345.0296 1345.0149 1345.0645 1344.6612 1344.6256
#> May 2004 1373.4445 1373.4881 1373.2397 1373.3108 1373.1366 1373.0579 1373.0723
#> Jun 2004 1397.9440 1397.8930 1398.2581 1398.1836 1398.5303 1399.6118 1399.5301
#> Jul 2004 1368.7682 1368.7396 1368.8959 1368.8504 1368.7625 1368.6183 1368.8033
#> Aug 2004 1359.6028 1359.6175 1359.5351 1359.5568 1359.5006 1359.4910 1359.4945
#> Sep 2004 1434.2125 1434.1841 1434.3484 1434.3043 1434.3869 1434.1744 1434.2083
#> Oct 2004 1413.2649 1413.3146 1413.0189 1413.0979 1412.8913 1412.8662 1412.8790
#> Nov 2004 1358.2779 1358.2807 1358.2630 1358.2672 1358.3122 1358.2723 1358.2131
#> Dec 2004 1354.5718 1354.5374 1354.7417 1354.6866 1354.8521 1354.8462 1354.8123
#> Jan 2005 1431.1173 1431.1725 1430.8343 1430.9219 1430.6802 1430.6091 1430.6245
#> Feb 2005 1426.6116 1426.6066 1426.6307 1426.6198 1426.6407 1426.6083 1426.5978
#> Mar 2005 1432.1174 1432.0909 1432.3201 1432.2779 1432.4509 1432.3341 1432.2594
#> Apr 2005 1287.5453 1287.5785 1287.2375 1287.2846 1287.0131 1286.2519 1286.3132
#> May 2005 1359.7245 1359.7180 1359.7758 1359.7645 1359.8237 1359.7386 1359.7194
#> Jun 2005 1449.1272 1449.0820 1449.4503 1449.3765 1449.6971 1451.4739 1451.4309
#> Jul 2005 1349.5370 1349.5558 1349.4668 1349.5142 1349.3572 1349.1875 1349.3066
#> Aug 2005 1396.3189 1396.2952 1396.4525 1396.4059 1396.5330 1396.5541 1396.5307
#> Sep 2005 1392.1399 1392.1167 1392.2535 1392.2139 1392.2885 1392.0591 1392.0851
#> Oct 2005 1378.1622 1378.2100 1377.9289 1378.0005 1377.8036 1377.7846 1377.7963
#> Nov 2005 1370.8604 1370.8573 1370.8678 1370.8616 1370.9092 1370.8650 1370.8202
#> Dec 2005 1393.3245 1393.3246 1393.2970 1393.3014 1393.2821 1393.1692 1393.1616
#> Jan 2006 1348.8828 1348.8869 1348.8221 1348.8355 1348.7808 1348.5874 1348.5858
#> Feb 2006 1423.2138 1423.2101 1423.2094 1423.2043 1423.1916 1423.0396 1423.0358
#> Mar 2006 1391.6123 1391.5831 1391.6360 1391.5891 1391.6026 1391.2795 1391.3093
#> Apr 2006 1440.2139 1440.2926 1439.7289 1439.8771 1439.4142 1437.9418 1437.9458
#> May 2006 1358.4271 1358.3989 1358.7000 1358.6226 1358.8680 1359.0966 1359.0649
#> Jun 2006 1416.0602 1416.0248 1416.4104 1416.3362 1416.7116 1419.8733 1419.8398
#> Jul 2006 1461.8687 1461.8865 1461.8060 1461.8794 1461.8051 1461.5283 1461.5870
#> Aug 2006 1430.2221 1430.1997 1430.3686 1430.3126 1430.4401 1430.2657 1430.2483
#> Sep 2006 1347.2304 1347.2559 1347.1318 1347.1558 1347.0519 1346.6752 1346.7078
#> Oct 2006 1406.0008 1406.0138 1405.9832 1405.9790 1405.9623 1405.7513 1405.7475
#> Nov 2006 1451.2956 1451.2905 1451.3569 1451.3262 1451.3955 1451.1428 1451.1135
#> Dec 2006 1449.2298 1449.2803 1448.9876 1449.0541 1448.8352 1448.4919 1448.5085
#> Jan 2007 1407.2192 1407.1191 1407.2192 1407.2213 1407.2149 1407.2214 1407.2123
#> Feb 2007 1438.1691 1438.1746 1438.1566 1438.1503 1438.1165 1437.8177 1437.8183
#> Mar 2007 1542.3922 1542.4050 1542.2025 1542.2208 1542.0332 1541.4532 1541.5036
#> Apr 2007 1388.4159 1388.4442 1388.1645 1388.2334 1387.9660 1386.3929 1386.3858
#> May 2007 1463.6922 1463.6844 1464.0126 1463.9263 1464.2083 1464.7747 1464.7442
#> Jun 2007 1490.4144 1490.4415 1490.5312 1490.5361 1490.7439 1495.1915 1495.1903
#> Jul 2007 1480.4268 1480.3902 1480.5962 1480.6224 1480.8238 1480.4925 1480.4743
#> Aug 2007 1520.9671 1520.9284 1521.1573 1521.0838 1521.2429 1520.8861 1520.8699
#> Sep 2007 1518.3485 1518.4262 1517.9706 1518.0806 1517.7345 1517.1569 1517.2105
#> Oct 2007 1500.8342 1500.8099 1501.0582 1500.9677 1501.1567 1500.7354 1500.7155
#> Nov 2007 1515.1815 1515.1840 1515.3339 1515.2618 1515.3863 1514.8968 1514.8837
#> Dec 2007 1527.4120 1527.4912 1527.1691 1527.2250 1526.9897 1526.3765 1526.3993
#> Jan 2008 1536.2467 1536.0984 1536.1146 1536.1622 1536.0256 1536.1656 1536.1650
#> Feb 2008 1513.5473 1513.5842 1513.6331 1513.5807 1513.6159 1513.0640 1513.0542
#> Mar 2008 1506.1104 1506.2054 1505.8756 1505.9451 1505.7009 1504.8231 1504.7995
#> Apr 2008 1548.1595 1547.9469 1547.7698 1547.9152 1547.4481 1546.0302 1546.0837
#> May 2008 1531.6586 1531.7717 1531.7904 1531.7470 1531.8728 1532.7354 1532.7226
#> Jun 2008 1405.5664 1405.6319 1405.8049 1405.7237 1406.1860 1411.1970 1411.1974
#> Jul 2008 1573.3746 1573.1894 1573.7051 1573.7516 1574.0921 1574.0623 1574.0363
#> Aug 2008 1495.3871 1495.4662 1495.1593 1495.1973 1495.0135 1494.3815 1494.4039
#> Sep 2008 1531.0690 1531.0782 1531.1912 1531.1213 1531.2460 1530.5340 1530.5252
#> Oct 2008 1514.4704 1514.4677 1514.7202 1514.6066 1514.8261 1514.1101 1514.0893
#> Nov 2008 1534.3350 1534.4565 1534.0313 1534.0964 1533.8109 1532.9748 1533.0071
#> Dec 2008 1580.8580 1580.8742 1581.1069 1581.0025 1581.1713 1580.2798 1580.2602
#> Jan 2009 1593.9639 1593.8223 1593.4494 1593.6354 1593.0171 1593.2446 1593.2792
#> Feb 2009 1462.2248 1462.3148 1462.2712 1462.2293 1462.1876 1461.3637 1461.3619
#> Mar 2009 1612.9324 1613.0310 1612.8479 1612.8013 1612.6665 1611.5136 1611.5597
#> Apr 2009 1593.2553 1592.8363 1592.8673 1593.1667 1592.6022 1591.9148 1591.8651
#> May 2009 1643.4518 1643.6835 1643.3728 1643.3570 1643.3156 1643.9666 1643.9760
#> Jun 2009 1495.9577 1495.9985 1496.5909 1496.3124 1497.3449 1503.7128 1503.6723
#> Jul 2009 1549.4046 1549.1325 1549.6593 1549.8215 1550.1296 1550.4405 1550.4390
#> Aug 2009 1583.2832 1583.4024 1583.0765 1583.0571 1583.0072 1582.1417 1582.1615
#> Sep 2009 1550.9133 1550.9520 1551.0426 1550.9273 1551.1557 1550.2963 1550.2847
#> Oct 2009 1616.4559 1616.5243 1616.4664 1616.3938 1616.4833 1615.5205 1615.5201
#> Nov 2009 1581.4150 1581.5085 1581.3386 1581.3095 1581.2681 1580.2417 1580.2499
#> Dec 2009 1536.4682 1536.5119 1536.6633 1536.5721 1536.6932 1535.5203 1535.5077
#> Jan 2010 1617.3741 1617.2972 1616.6220 1616.8959 1615.4337 1615.1903 1615.2419
#> Feb 2010 1540.0992 1540.2113 1540.1497 1540.1395 1540.0272 1538.6912 1538.7056
#> Mar 2010 1532.4695 1532.5327 1532.7731 1532.7024 1532.8180 1531.2941 1531.2548
#> Apr 2010 1523.1561 1522.5401 1522.5324 1523.0303 1522.1308 1521.9809 1522.0044
#> May 2010 1537.3465 1537.6021 1537.2810 1537.3199 1537.2394 1537.3245 1537.3494
#> Jun 2010 1548.7708 1548.7965 1549.6405 1549.3106 1550.7104 1560.4985 1560.3447
#> Jul 2010 1573.5424 1573.4291 1573.6875 1573.9764 1574.1392 1574.4518 1574.5230
#> Aug 2010 1544.0266 1544.1368 1544.2248 1543.7588 1544.7018 1543.2703 1543.2672
#> Sep 2010 1575.9430 1576.0097 1576.0167 1575.6885 1576.3372 1574.9859 1574.9898
#> Oct 2010 1556.2857 1556.4058 1555.9280 1555.7174 1555.9636 1554.5747 1554.6119
#> Nov 2010 1542.8513 1542.8788 1542.8264 1542.5037 1542.9857 1541.6509 1541.6472
#> Dec 2010 1516.5465 1516.5651 1516.5370 1516.2337 1516.6370 1515.2150 1515.2068
#> Jan 2011 1550.1809 1549.9646 1549.7846 1551.9949 1546.6539 1546.2293 1546.2663
#> Feb 2011 1549.5635 1549.6218 1549.3833 1549.2020 1549.3087 1547.7637 1547.7874
#> Mar 2011 1511.6435 1511.6543 1511.6757 1511.4532 1511.7199 1510.1380 1510.1560
#> Apr 2011 1580.4226 1579.8776 1579.6037 1580.0680 1579.2740 1579.4056 1579.3900
#> May 2011 1502.2966 1502.6263 1502.6708 1502.5492 1502.8464 1502.2774 1502.2862
#> Jun 2011 1469.7236 1469.6626 1470.7847 1470.3151 1471.7893 1483.9124 1483.6515
#> Jul 2011 1539.9452 1540.3256 1540.5512 1541.0042 1541.3116 1541.4680 1541.5896
#> Aug 2011 1490.3654 1490.7255 1491.5749 1490.6912 1492.9222 1491.0340 1490.9281
#> Sep 2011 1490.1516 1490.5626 1490.9749 1490.7753 1491.9640 1490.3158 1490.3799
#> Oct 2011 1493.4451 1491.7806 1491.7628 1491.6862 1492.5334 1490.8187 1490.9404
#> Nov 2011 1504.3590 1504.9142 1501.2609 1501.0652 1502.2375 1500.5082 1500.5878
#> Dec 2011 1519.2676 1519.5240 1520.0502 1518.6596 1519.6182 1517.7349 1517.8316
#> Jan 2012 1480.2023 1479.6909 1480.7410 1484.9985 1472.8551 1472.1274 1472.0904
#> Feb 2012 1512.3414 1512.3310 1511.7376 1511.6067 1512.9249 1513.5122 1513.5357
#> Mar 2012 1542.9523 1542.9580 1542.7114 1542.4200 1543.1181 1540.8531 1540.3973
#> Apr 2012 1503.8448 1503.3524 1503.1048 1503.5712 1502.6519 1502.5552 1502.6919
#> May 2012 1539.2617 1539.7374 1540.1580 1540.0438 1540.8676 1540.0168 1540.0755
#> Jun 2012 1627.5414 1627.6278 1628.9652 1628.4450 1630.2218 1645.6398 1645.2383
#> Jul 2012 1424.1116 1425.0486 1425.9527 1426.3561 1427.3338 1427.4432 1427.5861
#> Aug 2012 1561.2080 1562.2752 1564.0081 1562.7390 1566.5227 1564.1348 1563.9720
#> Sep 2012 1541.1107 1542.4702 1543.1643 1543.2964 1545.0714 1543.0146 1543.1857
#> Oct 2012 1506.7742 1501.1740 1502.5839 1502.5699 1504.8309 1502.7592 1502.9095
#> Nov 2012 1517.0760 1518.3815 1508.9777 1508.9358 1511.2400 1509.0348 1509.1847
#> Dec 2012 1544.5282 1545.1564 1546.5540 1543.6963 1545.7289 1543.3107 1543.5020
#> Jan 2013 1503.7565 1502.9301 1505.4977 1512.5742 1489.8616 1488.7026 1488.5527
#> Feb 2013 1549.9061 1549.9342 1548.7345 1548.6710 1551.4750 1556.2658 1556.2721
#> Mar 2013 1537.9369 1538.0246 1537.7311 1537.2891 1538.7404 1535.8072 1535.0372
#> Apr 2013 1500.3238 1500.1008 1500.1296 1500.3117 1499.6789 1498.9104 1499.2461
#> May 2013 1522.5442 1523.2296 1523.7902 1523.7258 1525.0306 1524.1517 1524.2613
#> Jun 2013 1560.6120 1560.8583 1562.1865 1561.6532 1563.5338 1579.1037 1578.6353
#> Jul 2013 1385.6398 1387.1796 1388.8498 1389.2083 1391.0372 1390.9394 1391.0615
#> Aug 2013 1548.7960 1550.7277 1553.0933 1551.8004 1556.5012 1553.9200 1553.6880
#> Sep 2013 1515.2956 1517.5925 1519.7016 1520.1297 1523.0185 1520.9187 1521.0962
#> Oct 2013 1531.0504 1520.4978 1523.0787 1523.5205 1526.7688 1524.4113 1524.6258
#> Nov 2013 1529.3246 1531.6284 1514.9633 1515.3683 1518.6525 1515.9878 1516.2175
#> Dec 2013 1512.0785 1513.0660 1516.2100 1511.8594 1515.3575 1512.4385 1512.6703
#> Jan 2014 1560.7062 1559.6645 1563.3557 1572.2566 1538.1274 1536.3521 1536.0688
#> Feb 2014 1484.8402 1484.9502 1483.3949 1483.5791 1487.7876 1497.4982 1497.4653
#> Mar 2014 1497.3887 1497.5690 1497.4078 1496.8864 1498.9327 1495.1070 1494.3982
#> Apr 2014 1532.9268 1533.0370 1533.5371 1533.7208 1533.1214 1531.3182 1531.7181
#> May 2014 1502.9905 1503.9545 1504.3797 1504.6142 1506.1018 1505.5091 1505.6899
#> Jun 2014 1467.7583 1468.2598 1470.0048 1469.4517 1471.7992 1487.1268 1486.5347
#> Jul 2014 1506.2161 1508.6857 1511.0333 1511.2028 1513.9092 1513.2942 1513.4186
#> Aug 2014 1465.0775 1467.7172 1470.5456 1469.1540 1474.4854 1471.7517 1471.5102
#> Sep 2014 1498.1283 1501.3282 1504.6461 1505.0382 1509.0975 1506.7478 1506.8704
#> Oct 2014 NaN 1531.5305 1535.0676 1535.5822 1539.8931 1537.0962 1537.2722
#> Nov 2014 NaN NaN 1541.0744 1541.5150 1545.8613 1542.6370 1542.8489
#> Dec 2014 NaN NaN NaN 1514.3760 1519.3910 1515.9814 1516.1529
#> Jan 2015 NaN NaN NaN NaN 1563.6139 1561.3899 1560.9737
#> Feb 2015 NaN NaN NaN NaN NaN 1490.9779 1490.8457
#> Mar 2015 NaN NaN NaN NaN NaN NaN 1526.2744
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 64 Series 65 Series 66 Series 67 Series 68 Series 69 Series 70
#> Apr 1982 489.6506 489.6650 489.6713 489.6625 489.6642 489.6625 489.6922
#> May 1982 478.2474 478.2378 478.2175 478.2205 478.2123 478.2178 478.1794
#> Jun 1982 486.7757 486.8004 486.8314 486.8219 486.8339 486.8256 486.8948
#> Jul 1982 485.1506 485.1576 485.1643 485.1619 485.1645 485.1627 485.1785
#> Aug 1982 491.1141 491.0941 491.0635 491.0718 491.0598 491.0680 491.0023
#> Sep 1982 497.1226 497.1583 497.2082 497.1954 497.2150 497.2016 497.3073
#> Oct 1982 481.0128 480.9806 480.9342 480.9474 480.9294 480.9419 480.8405
#> Nov 1982 485.9103 485.9167 485.9251 485.9234 485.9268 485.9245 485.9411
#> Dec 1982 488.4823 488.5208 488.5747 488.5606 488.5817 488.5672 488.6820
#> Jan 1983 444.8770 444.8109 444.7190 444.7461 444.7106 444.7352 444.5327
#> Feb 1983 504.3953 504.3929 504.3889 504.3906 504.3892 504.3902 504.3802
#> Mar 1983 512.9165 512.9466 512.9849 512.9546 512.9675 512.9572 513.0849
#> Apr 1983 561.0726 561.0243 560.9824 561.0131 560.9986 561.0100 560.8762
#> May 1983 481.5821 481.6077 481.6372 481.6264 481.6376 481.6297 481.6991
#> Jun 1983 507.3125 507.3417 507.3791 507.3678 507.3823 507.3723 507.4551
#> Jul 1983 499.3145 499.2789 499.2257 499.2400 499.2193 499.2335 499.1194
#> Aug 1983 510.2429 510.2681 510.3012 510.2919 510.3048 510.2959 510.3678
#> Sep 1983 516.2749 516.3135 516.3681 516.3543 516.3757 516.3611 516.4762
#> Oct 1983 515.1973 515.1588 515.1037 515.1195 515.0982 515.1129 514.9925
#> Nov 1983 528.9535 528.9570 528.9632 528.9634 528.9659 528.9643 528.9734
#> Dec 1983 531.3729 531.3721 531.3708 531.3721 531.3717 531.3721 531.3670
#> Jan 1984 481.6814 481.6507 481.6089 481.6223 481.6063 481.6175 481.5229
#> Feb 1984 534.4307 534.4415 534.4565 534.4532 534.4591 534.4551 534.4855
#> Mar 1984 555.1801 555.1522 555.1457 555.1526 555.1505 555.1523 555.1271
#> Apr 1984 521.5287 521.5040 521.4510 521.4552 521.4336 521.4478 521.3568
#> May 1984 560.2251 560.2955 560.3879 560.3595 560.3952 560.3703 560.5766
#> Jun 1984 553.1717 553.1633 553.1482 553.1516 553.1456 553.1497 553.1186
#> Jul 1984 574.9103 574.9089 574.9048 574.9061 574.9046 574.9056 574.8965
#> Aug 1984 564.7044 564.7408 564.7904 564.7768 564.7961 564.7828 564.8896
#> Sep 1984 570.6445 570.5994 570.5368 570.5559 570.5317 570.5485 570.4091
#> Oct 1984 578.5087 578.5471 578.6008 578.5867 578.6077 578.5933 578.7075
#> Nov 1984 579.1134 579.1134 579.1172 579.1198 579.1217 579.1206 579.1209
#> Dec 1984 571.8668 571.8195 571.7529 571.7724 571.7465 571.7644 571.6178
#> Jan 1985 594.0486 594.0666 594.0937 594.0885 594.0993 594.0920 594.1456
#> Feb 1985 610.7629 610.7624 610.7620 610.7633 610.7633 610.7634 610.7596
#> Mar 1985 605.0392 604.9740 604.8951 604.9098 604.8784 604.8995 604.7452
#> Apr 1985 629.5764 629.5932 629.6075 629.5988 629.6039 629.6000 629.6418
#> May 1985 661.5494 661.6238 661.7221 661.6923 661.7303 661.7039 661.9224
#> Jun 1985 623.9230 623.8652 623.7810 623.8038 623.7710 623.7936 623.6124
#> Jul 1985 633.5252 633.5715 633.6363 633.6195 633.6449 633.6275 633.7648
#> Aug 1985 666.9920 666.9932 666.9936 666.9941 666.9944 666.9943 666.9933
#> Sep 1985 609.5036 609.5009 609.4987 609.5014 609.5007 609.5013 609.4920
#> Oct 1985 660.7239 660.7624 660.8168 660.8026 660.8238 660.8092 660.9250
#> Nov 1985 652.0336 651.9760 651.9021 651.9280 651.8998 651.9196 651.7479
#> Dec 1985 636.8624 636.8566 636.8487 636.8518 636.8488 636.8509 636.8320
#> Jan 1986 658.8724 658.9054 658.9536 658.9421 658.9610 658.9480 659.0487
#> Feb 1986 652.4214 652.4217 652.4225 652.4233 652.4237 652.4235 652.4232
#> Mar 1986 611.1236 611.0842 610.9880 610.9783 610.9372 610.9629 610.8373
#> Apr 1986 658.3554 658.3585 658.4002 658.4137 658.4325 658.4214 658.4550
#> May 1986 726.7649 726.7812 726.7984 726.7910 726.7974 726.7928 726.8357
#> Jun 1986 603.9097 603.8955 603.8737 603.8793 603.8709 603.8768 603.8298
#> Jul 1986 703.1425 703.1960 703.2720 703.2525 703.2824 703.2620 703.4221
#> Aug 1986 676.8420 676.7922 676.7214 676.7416 676.7142 676.7333 676.5779
#> Sep 1986 711.2636 711.3105 711.3792 711.3626 711.3896 711.3712 711.5139
#> Oct 1986 690.1148 690.1539 690.2098 690.1953 690.2172 690.2022 690.3206
#> Nov 1986 656.4938 656.3844 656.2392 656.2855 656.2294 656.2684 655.9409
#> Dec 1986 714.3081 714.3573 714.4285 714.4103 714.4379 714.4188 714.5698
#> Jan 1987 720.6025 720.5938 720.5843 720.5889 720.5852 720.5877 720.5634
#> Feb 1987 708.6246 708.6254 708.6291 708.6298 708.6312 708.6302 708.6355
#> Mar 1987 702.3713 702.3429 702.3266 702.3406 702.3350 702.3393 702.2847
#> Apr 1987 707.1895 707.2460 707.2811 707.2426 707.2535 707.2438 707.3859
#> May 1987 710.3245 710.2726 710.1971 710.2169 710.1875 710.2076 710.0480
#> Jun 1987 714.9573 714.9715 714.9902 714.9844 714.9922 714.9871 715.0304
#> Jul 1987 773.5313 773.6022 773.7032 773.6786 773.7172 773.6913 773.8934
#> Aug 1987 704.8006 704.7565 704.6939 704.7115 704.6891 704.7058 704.5629
#> Sep 1987 721.1934 721.2358 721.2985 721.2834 721.3084 721.2915 721.4222
#> Oct 1987 744.5293 744.5170 744.5012 744.5065 744.5007 744.5049 744.4686
#> Nov 1987 683.8896 683.8248 683.7432 683.7719 683.7408 683.7627 683.5731
#> Dec 1987 751.1170 751.1728 751.2535 751.2325 751.2639 751.2421 751.4151
#> Jan 1988 754.3364 754.2725 754.1849 754.2105 754.1760 754.1993 754.0093
#> Feb 1988 738.1546 738.1733 738.2028 738.1962 738.2067 738.1985 738.2633
#> Mar 1988 757.3476 757.4058 757.4579 757.4235 757.4403 757.4260 757.5903
#> Apr 1988 787.9447 787.9324 787.9175 787.9228 787.9158 787.9195 787.8898
#> May 1988 744.8507 744.8462 744.8405 744.8422 744.8387 744.8401 744.8328
#> Jun 1988 757.8873 757.8694 757.8434 757.8495 757.8397 757.8464 757.7989
#> Jul 1988 756.2164 756.1874 756.1469 756.1620 756.1506 756.1639 756.0393
#> Aug 1988 749.6293 749.6946 749.7849 749.7587 749.8018 749.7774 749.9493
#> Sep 1988 776.8334 776.8674 776.9195 776.9077 776.9265 776.9124 777.0237
#> Oct 1988 773.1258 773.0564 772.9608 772.9885 772.9506 772.9760 772.7703
#> Nov 1988 785.7897 785.7852 785.7882 785.7932 785.7939 785.7930 785.7908
#> Dec 1988 809.9123 809.9178 809.9281 809.9267 809.9297 809.9268 809.9501
#> Jan 1989 753.6139 753.6051 753.5953 753.5994 753.5942 753.5967 753.5777
#> Feb 1989 768.4891 768.4953 768.5074 768.5057 768.5083 768.5048 768.5348
#> Mar 1989 792.8200 792.8914 792.9484 792.9036 792.9204 792.9046 793.1030
#> Apr 1989 786.8901 786.8135 786.7224 786.7579 786.7210 786.7452 786.5327
#> May 1989 770.3088 770.3556 770.4248 770.4073 770.4320 770.4131 770.5684
#> Jun 1989 815.9557 815.9072 815.8382 815.8558 815.8292 815.8473 815.7121
#> Jul 1989 799.0890 799.0716 799.0458 799.0579 799.0580 799.0688 798.9510
#> Aug 1989 834.6574 834.7271 834.8211 834.7920 834.8443 834.8187 834.9784
#> Sep 1989 821.9249 821.8901 821.8464 821.8615 821.8410 821.8524 821.7601
#> Oct 1989 784.4036 784.3943 784.3843 784.3887 784.3832 784.3856 784.3684
#> Nov 1989 827.9209 827.9292 827.9476 827.9464 827.9522 827.9470 827.9863
#> Dec 1989 818.9911 818.9400 818.8705 818.8909 818.8621 818.8805 818.7354
#> Jan 1990 804.6258 804.6729 804.7417 804.7239 804.7483 804.7296 804.8847
#> Feb 1990 813.1553 813.1650 813.1813 813.1780 813.1808 813.1761 813.2195
#> Mar 1990 855.1140 855.0856 855.0933 855.1218 855.1230 855.1208 855.0811
#> Apr 1990 792.0068 792.0246 791.9865 791.9554 791.9318 791.9415 791.9645
#> May 1990 820.7874 820.8371 820.9104 820.8918 820.9154 820.8954 821.0634
#> Jun 1990 864.1402 864.0136 863.8343 863.8821 863.8108 863.8584 863.4886
#> Jul 1990 792.5393 792.5831 792.6417 792.6293 792.6678 792.6559 792.7115
#> Aug 1990 875.5724 875.6375 875.7225 875.6945 875.7596 875.7365 875.8521
#> Sep 1990 811.8314 811.7280 811.5879 811.6299 811.5690 811.6062 811.3089
#> Oct 1990 804.2516 804.3051 804.3839 804.3640 804.3914 804.3700 804.5473
#> Nov 1990 832.9851 833.0106 833.0506 833.0417 833.0545 833.0434 833.1356
#> Dec 1990 823.8555 823.8036 823.7335 823.7545 823.7245 823.7430 823.5979
#> Jan 1991 821.7325 821.7806 821.8514 821.8335 821.8574 821.8381 821.9998
#> Feb 1991 833.1813 833.1964 833.2209 833.2159 833.2201 833.2133 833.2777
#> Mar 1991 813.5214 813.4756 813.3659 813.3665 813.3148 813.3437 813.1902
#> Apr 1991 832.9825 833.0125 833.0825 833.0807 833.1030 833.0840 833.2119
#> May 1991 827.8439 827.9038 827.9921 827.9697 827.9969 827.9729 828.1776
#> Jun 1991 778.3658 778.1941 777.9516 778.0173 777.9192 777.9838 777.4807
#> Jul 1991 882.5650 882.6505 882.7666 882.7373 882.8184 882.7914 882.9173
#> Aug 1991 900.2685 900.2749 900.2774 900.2724 900.3115 900.3105 900.2447
#> Sep 1991 803.3964 803.3555 803.3039 803.3217 803.2887 803.3022 803.2057
#> Oct 1991 866.4129 866.4788 866.5755 866.5507 866.5782 866.5519 866.7782
#> Nov 1991 856.8439 856.8103 856.7657 856.7795 856.7535 856.7651 856.6844
#> Dec 1991 842.5942 842.6002 842.6114 842.6096 842.6057 842.6024 842.6408
#> Jan 1992 872.3638 872.4233 872.5084 872.4852 872.5617 872.5386 872.6888
#> Feb 1992 887.2563 887.2249 887.1829 887.1959 887.1673 887.1784 887.1064
#> Mar 1992 831.9417 831.9164 831.9150 831.9377 831.9254 831.9257 831.8947
#> Apr 1992 877.7315 877.7981 877.8429 877.7983 877.7964 877.7841 877.9789
#> May 1992 889.5239 889.4601 889.3727 889.3984 889.3471 889.3704 889.2065
#> Jun 1992 845.0244 844.9854 844.9306 844.9450 844.9095 844.9239 844.8354
#> Jul 1992 873.4613 873.5171 873.5911 873.5703 873.6484 873.6312 873.6391
#> Aug 1992 855.9487 855.8972 855.8207 855.8397 855.8691 855.8895 855.6622
#> Sep 1992 880.8190 880.8354 880.8640 880.8595 880.8464 880.8385 880.9293
#> Oct 1992 910.5701 910.5799 910.5966 910.5935 910.5799 910.5752 910.6408
#> Nov 1992 885.8277 885.7946 885.7500 885.7634 885.7292 885.7409 885.6699
#> Dec 1992 864.9313 864.9966 865.0904 865.0655 865.0868 865.0614 865.2863
#> Jan 1993 910.2905 910.2187 910.1167 910.1437 910.1983 910.2256 909.9226
#> Feb 1993 878.6675 878.6840 878.7085 878.7026 878.6995 878.6929 878.7601
#> Mar 1993 888.6883 888.7290 888.8157 888.8108 888.8322 888.8090 888.9670
#> Apr 1993 884.2082 884.2705 884.3228 884.2852 884.2842 884.2701 884.4550
#> May 1993 916.4453 916.3851 916.3015 916.3254 916.2709 916.2933 916.1354
#> Jun 1993 911.5207 911.5114 911.4985 911.5019 911.4742 911.4776 911.4793
#> Jul 1993 858.1871 858.1426 858.0753 858.0908 858.1214 858.1405 857.8230
#> Aug 1993 856.3161 856.3404 856.3766 856.3682 856.3611 856.3514 856.5617
#> Sep 1993 908.2416 908.2458 908.2530 908.2529 908.2769 908.2743 908.2586
#> Oct 1993 900.3408 900.2910 900.2221 900.2420 900.1910 900.2094 900.0883
#> Nov 1993 883.7811 883.8179 883.8709 883.8568 883.8586 883.8444 883.9792
#> Dec 1993 894.7308 894.7944 894.8850 894.8605 894.8806 894.8562 895.0673
#> Jan 1994 888.3744 888.3063 888.2074 888.2319 888.3429 888.3694 888.0116
#> Feb 1994 908.0589 908.0692 908.0837 908.0798 908.0787 908.0748 908.1041
#> Mar 1994 932.1168 932.1916 932.2544 932.2095 932.2221 932.2052 932.3993
#> Apr 1994 918.2900 918.2491 918.2331 918.2650 918.2460 918.2505 918.1577
#> May 1994 911.5047 911.5091 911.5148 911.5133 911.4969 911.4954 911.5164
#> Jun 1994 943.3236 943.3500 943.3883 943.3777 943.3425 943.3333 943.4577
#> Jul 1994 869.4358 869.3122 869.1340 869.1788 869.1517 869.1991 868.6717
#> Aug 1994 928.4519 928.5577 928.7143 928.6766 928.6171 928.5753 929.2832
#> Sep 1994 954.0024 953.9954 953.9817 953.9857 954.0382 954.0405 953.9338
#> Oct 1994 954.7010 954.6466 954.5699 954.5915 954.5172 954.5377 954.4212
#> Nov 1994 910.9057 910.9471 911.0057 910.9899 910.9756 910.9598 911.1262
#> Dec 1994 956.8673 956.8597 956.8489 956.8522 956.8161 956.8188 956.8295
#> Jan 1995 887.0531 887.0442 887.0293 887.0301 887.4229 887.4274 886.8740
#> Feb 1995 934.0041 934.0068 934.0106 934.0090 933.9832 933.9824 934.0156
#> Mar 1995 956.3759 956.4218 956.5201 956.5143 956.5278 956.5018 956.6857
#> Apr 1995 973.6556 973.5708 973.4175 973.4374 973.3416 973.3830 973.1299
#> May 1995 926.9845 927.0524 927.1482 927.1213 927.1257 927.1004 927.3352
#> Jun 1995 944.7751 944.8267 944.9033 944.8816 944.7992 944.7822 945.0334
#> Jul 1995 964.6099 964.4802 964.2912 964.3450 964.4093 964.4552 963.7899
#> Aug 1995 1011.9672 1012.0911 1012.2780 1012.2340 1012.0042 1011.9546 1013.0550
#> Sep 1995 930.5852 930.4994 930.3712 930.4051 930.4188 930.4515 930.0975
#> Oct 1995 938.6143 938.6228 938.6346 938.6310 938.5407 938.5377 938.6790
#> Nov 1995 967.7325 967.7856 967.8603 967.8393 967.7733 967.7533 968.0305
#> Dec 1995 984.4233 984.3380 984.2173 984.2502 984.1153 984.1475 983.9951
#> Jan 1996 970.8729 970.9184 970.9814 970.9594 972.0046 971.9893 970.7174
#> Feb 1996 974.7932 974.8105 974.8345 974.8267 974.7548 974.7484 974.8993
#> Mar 1996 963.6184 963.5303 963.4201 963.4588 963.3392 963.3689 963.2035
#> Apr 1996 960.4331 960.4796 960.5312 960.5071 960.4476 960.4339 960.6607
#> May 1996 968.5282 968.5935 968.6852 968.6589 968.6212 968.5968 968.8830
#> Jun 1996 974.4332 974.3479 974.2363 974.2661 973.9767 974.0147 973.9834
#> Jul 1996 958.2287 958.2847 958.3563 958.3457 958.5770 958.5487 958.4095
#> Aug 1996 1035.1064 1035.1568 1035.2397 1035.2238 1034.9004 1034.8788 1035.8343
#> Sep 1996 907.7698 907.6819 907.5508 907.5853 907.5649 907.5985 907.2899
#> Oct 1996 949.1876 949.2562 949.3525 949.3252 949.2280 949.2023 949.5879
#> Nov 1996 982.6962 982.6805 982.6577 982.6631 982.5126 982.5188 982.6565
#> Dec 1996 965.5972 965.5802 965.5551 965.5610 965.4163 965.4226 965.5477
#> Jan 1997 975.1715 975.2027 975.2482 975.2309 976.7956 976.7860 974.6993
#> Feb 1997 1002.2056 1002.1973 1002.1845 1002.1853 1002.0431 1002.0463 1002.1974
#> Mar 1997 984.1696 984.1208 983.9870 983.9797 983.7945 983.8297 983.8021
#> Apr 1997 946.6789 946.6805 946.7436 946.7638 946.6697 946.6526 946.8555
#> May 1997 1014.5629 1014.5538 1014.5394 1014.5405 1014.4140 1014.4174 1014.5403
#> Jun 1997 892.7832 892.7882 892.8123 892.8049 892.4807 892.4892 892.8502
#> Jul 1997 1008.2552 1008.3466 1008.4586 1008.4510 1008.7908 1008.7419 1008.6299
#> Aug 1997 982.1614 982.1221 982.0785 982.0949 981.6804 981.6947 982.3847
#> Sep 1997 1014.6037 1014.5825 1014.5456 1014.5526 1014.5572 1014.5666 1014.4845
#> Oct 1997 996.1607 996.2251 996.3158 996.2886 996.1685 996.1450 996.5507
#> Nov 1997 1014.1192 1014.0271 1013.8963 1013.9300 1013.7183 1013.7537 1013.6877
#> Dec 1997 978.9108 978.9631 979.0354 979.0129 978.8895 978.8696 979.2306
#> Jan 1998 1067.4548 1067.4025 1067.3322 1067.3464 1069.3055 1069.3273 1066.3609
#> Feb 1998 989.9428 989.9349 989.9218 989.9219 989.7719 989.7741 989.9417
#> Mar 1998 988.3710 988.3420 988.3382 988.3612 988.1436 988.1432 988.3495
#> Apr 1998 1028.0543 1028.1048 1028.1353 1028.0982 1027.9671 1027.9567 1028.2704
#> May 1998 998.9378 998.8543 998.7333 998.7628 998.5915 998.6218 998.5291
#> Jun 1998 914.0282 914.1081 914.2457 914.2076 913.8110 913.7988 914.5434
#> Jul 1998 1070.3208 1070.4378 1070.5778 1070.5720 1070.9354 1070.8719 1070.8628
#> Aug 1998 1027.6204 1027.5636 1027.4939 1027.5150 1027.1734 1027.1959 1027.6475
#> Sep 1998 1015.5516 1015.5516 1015.5480 1015.5457 1015.5341 1015.5355 1015.5699
#> Oct 1998 1052.4412 1052.4241 1052.3999 1052.4036 1052.2607 1052.2678 1052.4065
#> Nov 1998 1024.5585 1024.5364 1024.5042 1024.5100 1024.3645 1024.3728 1024.4910
#> Dec 1998 1027.7416 1027.7899 1027.8561 1027.8341 1027.6971 1027.6791 1028.0558
#> Jan 1999 1102.2535 1102.1201 1101.9362 1101.9819 1103.9071 1103.9588 1100.7089
#> Feb 1999 1025.5028 1025.4946 1025.4804 1025.4797 1025.3362 1025.3379 1025.5000
#> Mar 1999 1042.1467 1042.2238 1042.3032 1042.2588 1041.9857 1041.9619 1042.5359
#> Apr 1999 1041.7592 1041.7827 1041.8439 1041.8423 1041.7353 1041.7160 1041.9890
#> May 1999 1043.2016 1043.1102 1042.9773 1043.0087 1042.8353 1042.8676 1042.7520
#> Jun 1999 965.4853 965.5757 965.7349 965.6919 965.2477 965.2385 966.1060
#> Jul 1999 1089.3340 1089.3737 1089.3944 1089.4298 1089.8022 1089.7632 1089.4625
#> Aug 1999 1056.8713 1056.8711 1056.8802 1056.8768 1056.6610 1056.6641 1057.0713
#> Sep 1999 1085.8397 1085.8679 1085.9087 1085.8935 1085.8775 1085.8686 1086.0338
#> Oct 1999 1085.4057 1085.3035 1085.1601 1085.1959 1085.0352 1085.0743 1084.9200
#> Nov 1999 1076.4388 1076.4839 1076.5464 1076.5245 1076.4472 1076.4297 1076.7117
#> Dec 1999 1073.9435 1074.0005 1074.0793 1074.0527 1073.9183 1073.8976 1074.3113
#> Jan 2000 1081.1990 1081.0661 1080.8820 1080.9278 1082.5286 1082.5793 1079.8140
#> Feb 2000 1072.3022 1072.3184 1072.3384 1072.3284 1072.2292 1072.2209 1072.4132
#> Mar 2000 1070.6562 1070.6991 1070.8000 1070.7954 1070.4766 1070.4467 1071.0120
#> Apr 2000 1102.0384 1101.9313 1101.7394 1101.7632 1101.5778 1101.6253 1101.4184
#> May 2000 1069.5067 1069.5687 1069.6524 1069.6244 1069.5606 1069.5342 1069.8533
#> Jun 2000 1255.9084 1256.0238 1256.2244 1256.1708 1255.6180 1255.6091 1256.7129
#> Jul 2000 897.7145 897.6819 897.6049 897.6580 897.9154 897.9084 897.4930
#> Aug 2000 1177.3952 1177.4788 1177.6051 1177.5680 1177.5620 1177.5338 1177.9142
#> Sep 2000 1157.7064 1157.6752 1157.6362 1157.6435 1157.6080 1157.6212 1157.5994
#> Oct 2000 1102.8045 1102.7796 1102.7462 1102.7521 1102.6990 1102.7084 1102.7041
#> Nov 2000 1093.5690 1093.5901 1093.6186 1093.6058 1093.5716 1093.5628 1093.6883
#> Dec 2000 1151.6534 1151.5420 1151.3842 1151.4230 1151.2196 1151.2636 1151.1402
#> Jan 2001 1114.0877 1114.1273 1114.1852 1114.1648 1115.2479 1115.2325 1113.8605
#> Feb 2001 1140.1900 1140.1860 1140.1784 1140.1762 1140.1225 1140.1218 1140.1678
#> Mar 2001 1214.8167 1214.7809 1214.7719 1214.7976 1214.4512 1214.4509 1214.7317
#> Apr 2001 1106.1975 1106.1755 1106.1091 1106.1015 1106.0143 1106.0285 1106.0041
#> May 2001 1146.9125 1146.9688 1147.0453 1147.0192 1146.9894 1146.9650 1147.2023
#> Jun 2001 1101.2315 1101.2454 1101.2930 1101.2816 1100.8955 1100.9171 1101.4605
#> Jul 2001 1148.0543 1148.1032 1148.1302 1148.1606 1148.5126 1148.4708 1148.2520
#> Aug 2001 1121.7203 1121.7961 1121.9119 1121.8778 1121.9060 1121.8808 1122.1702
#> Sep 2001 1123.7700 1123.6659 1123.5257 1123.5610 1123.5496 1123.5906 1123.2619
#> Oct 2001 1156.0081 1156.0681 1156.1548 1156.1268 1156.1667 1156.1443 1156.3248
#> Nov 2001 1190.4869 1190.4920 1190.4972 1190.4892 1190.4859 1190.4835 1190.4857
#> Dec 2001 1209.1686 1209.0587 1208.9034 1208.9412 1208.7933 1208.8374 1208.6375
#> Jan 2002 1173.2295 1173.2747 1173.3386 1173.3172 1173.7648 1173.7471 1173.2975
#> Feb 2002 1174.1631 1174.1640 1174.1630 1174.1602 1174.1753 1174.1734 1174.1416
#> Mar 2002 1184.8436 1184.7803 1184.6103 1184.6023 1184.2612 1184.3047 1184.3174
#> Apr 2002 1197.1153 1197.1111 1197.1957 1197.2307 1197.2685 1197.2428 1197.2809
#> May 2002 1223.1620 1223.2212 1223.3024 1223.2762 1223.3052 1223.2807 1223.4495
#> Jun 2002 1219.8230 1219.7549 1219.6793 1219.7000 1219.3816 1219.4274 1219.5728
#> Jul 2002 1119.7221 1119.8575 1120.0152 1119.9971 1120.3382 1120.2700 1120.3958
#> Aug 2002 1251.3191 1251.3047 1251.2911 1251.2922 1251.3026 1251.3110 1251.2688
#> Sep 2002 1164.8543 1164.8403 1164.8270 1164.8279 1164.9039 1164.9104 1164.8048
#> Oct 2002 1235.1328 1235.1980 1235.2915 1235.2620 1235.3283 1235.3040 1235.4611
#> Nov 2002 1330.7027 1330.5948 1330.4389 1330.4752 1330.4180 1330.4588 1330.0881
#> Dec 2002 1249.5459 1249.5227 1249.4893 1249.4945 1249.4138 1249.4259 1249.4632
#> Jan 2003 1249.5573 1249.6176 1249.7010 1249.6756 1249.7418 1249.7189 1249.8448
#> Feb 2003 1250.7877 1250.7931 1250.7986 1250.7958 1250.8301 1250.8276 1250.7886
#> Mar 2003 1300.6435 1300.5004 1300.3479 1300.4222 1300.1896 1300.2300 1299.9887
#> Apr 2003 1289.5683 1289.6207 1289.6600 1289.6300 1289.6591 1289.6457 1289.7505
#> May 2003 1296.9288 1296.9094 1296.8900 1296.8934 1296.8978 1296.9027 1296.8096
#> Jun 2003 1284.2815 1284.3121 1284.3684 1284.3523 1284.2319 1284.2282 1284.4846
#> Jul 2003 1232.2172 1232.3708 1232.5504 1232.5125 1232.8693 1232.8008 1232.9634
#> Aug 2003 1299.0577 1298.9344 1298.7636 1298.8086 1298.7391 1298.7883 1298.4241
#> Sep 2003 1304.0174 1304.0890 1304.1955 1304.1517 1304.2675 1304.2451 1304.4112
#> Oct 2003 1342.0818 1342.1645 1342.2813 1342.2466 1342.2930 1342.2626 1342.5075
#> Nov 2003 1373.3475 1373.1294 1372.8182 1372.8997 1372.7473 1372.8302 1372.1682
#> Dec 2003 1300.1470 1300.2228 1300.3295 1300.2992 1300.2741 1300.2481 1300.5790
#> Jan 2004 1351.4935 1351.4618 1351.4166 1351.4303 1351.4203 1351.4327 1351.3161
#> Feb 2004 1327.7810 1327.7162 1327.6251 1327.6528 1327.6255 1327.6501 1327.4327
#> Mar 2004 1314.1349 1314.1763 1314.2929 1314.3024 1314.2535 1314.2245 1314.4787
#> Apr 2004 1344.7044 1344.7322 1344.7121 1344.7052 1344.7049 1344.6991 1344.7674
#> May 2004 1373.1093 1373.0080 1372.8912 1372.9228 1372.8702 1372.9061 1372.5854
#> Jun 2004 1399.5523 1399.7039 1399.9333 1399.8669 1399.8823 1399.8223 1400.3419
#> Jul 2004 1368.6009 1368.6749 1368.7466 1368.7177 1369.0027 1368.9741 1368.9101
#> Aug 2004 1359.5106 1359.4763 1359.4310 1359.4385 1359.4125 1359.4284 1359.3261
#> Sep 2004 1434.1289 1434.1950 1434.2919 1434.2322 1434.3241 1434.3091 1434.4684
#> Oct 2004 1412.9268 1412.8066 1412.6332 1412.6763 1412.5970 1412.6447 1412.2883
#> Nov 2004 1358.2805 1358.2715 1358.2504 1358.2516 1358.1935 1358.1985 1358.2054
#> Dec 2004 1354.8067 1354.8901 1355.0009 1354.9712 1354.9657 1354.9362 1355.2655
#> Jan 2005 1430.6780 1430.5405 1430.3410 1430.4075 1430.3252 1430.3754 1429.9680
#> Feb 2005 1426.6078 1426.6151 1426.6266 1426.6439 1426.6486 1426.6416 1426.6724
#> Mar 2005 1432.4432 1432.5395 1432.5975 1432.5545 1432.5678 1432.5514 1432.7948
#> Apr 2005 1286.1523 1286.0011 1285.8409 1285.9788 1285.9378 1285.9582 1285.5969
#> May 2005 1359.7300 1359.7514 1359.8302 1359.8271 1359.8383 1359.8209 1359.8909
#> Jun 2005 1451.4214 1451.5673 1451.8390 1451.7691 1451.8494 1451.7850 1452.2121
#> Jul 2005 1349.2034 1349.1902 1349.1185 1348.9929 1349.0519 1349.0987 1348.8545
#> Aug 2005 1396.5281 1396.5901 1396.6975 1396.6843 1396.7045 1396.6798 1396.8849
#> Sep 2005 1392.0162 1392.0737 1392.1729 1392.1201 1392.1843 1392.1720 1392.3275
#> Oct 2005 1377.8437 1377.7300 1377.5765 1377.6324 1377.5571 1377.5989 1377.2700
#> Nov 2005 1370.8673 1370.8707 1370.8694 1370.8748 1370.8368 1370.8352 1370.8842
#> Dec 2005 1393.1759 1393.1634 1393.1092 1393.1244 1393.1083 1393.1127 1393.1013
#> Jan 2006 1348.6015 1348.5727 1348.4728 1348.5069 1348.4892 1348.4967 1348.4381
#> Feb 2006 1423.0449 1423.0404 1422.9800 1423.0318 1423.0378 1423.0287 1423.0431
#> Mar 2006 1391.1560 1391.1660 1391.1948 1391.2522 1391.2980 1391.2726 1391.3775
#> Apr 2006 1438.1308 1437.8986 1437.3771 1437.5125 1437.3746 1437.4591 1436.7811
#> May 2006 1359.0619 1359.1714 1359.4445 1359.5576 1359.6213 1359.5347 1359.8743
#> Jun 2006 1419.8233 1419.9944 1420.7512 1420.5114 1420.6812 1420.6215 1420.9954
#> Jul 2006 1461.5230 1461.5217 1461.3730 1461.0900 1460.9992 1461.0918 1460.9503
#> Aug 2006 1430.2340 1430.2981 1430.3549 1430.3483 1430.3623 1430.3398 1430.5580
#> Sep 2006 1346.6837 1346.6350 1346.5374 1346.5371 1346.5033 1346.5340 1346.3915
#> Oct 2006 1405.7593 1405.7440 1405.6837 1405.7382 1405.6982 1405.6941 1405.6658
#> Nov 2006 1451.1309 1451.1548 1451.1399 1451.1508 1451.1201 1451.1141 1451.2307
#> Dec 2006 1448.5478 1448.4266 1448.1768 1448.2434 1448.1545 1448.2029 1447.8727
#> Jan 2007 1407.2181 1407.2638 1407.2048 1407.3179 1407.5283 1407.4644 1407.6037
#> Feb 2007 1437.8255 1437.8102 1437.6974 1437.7709 1437.7663 1437.7586 1437.7568
#> Mar 2007 1541.3850 1541.2888 1541.1057 1541.1940 1541.1781 1541.1970 1540.9927
#> Apr 2007 1386.5096 1386.3876 1385.9869 1386.0646 1385.9940 1386.0386 1385.7100
#> May 2007 1464.7555 1464.8631 1465.2302 1465.4952 1465.5545 1465.4298 1465.7623
#> Jun 2007 1495.1982 1495.2686 1496.3927 1495.9843 1496.1720 1496.1730 1496.0999
#> Jul 2007 1480.4070 1480.5270 1480.4629 1479.9590 1479.8051 1479.9003 1480.1857
#> Aug 2007 1520.8329 1520.9158 1520.9397 1520.9085 1520.9366 1520.9093 1521.2004
#> Sep 2007 1517.2210 1517.0344 1516.6804 1516.7229 1516.5978 1516.6832 1516.1469
#> Oct 2007 1500.6860 1500.7785 1500.8026 1500.8831 1500.8700 1500.8120 1501.1211
#> Nov 2007 1514.8726 1514.9281 1514.8873 1514.9715 1514.9218 1514.9041 1515.1212
#> Dec 2007 1526.4437 1526.3120 1525.9775 1526.1395 1525.9875 1526.0400 1525.6944
#> Jan 2008 1536.2112 1536.2410 1536.0741 1536.4209 1536.7827 1536.6738 1536.7342
#> Feb 2008 1513.0811 1513.0988 1512.9969 1513.1902 1513.1315 1513.1106 1513.2296
#> Mar 2008 1505.0452 1504.9202 1504.5225 1504.6706 1504.4980 1504.5740 1504.1934
#> Apr 2008 1545.7903 1545.6562 1545.4670 1544.7482 1545.2192 1545.2285 1545.0326
#> May 2008 1532.8271 1532.8141 1533.1282 1533.7217 1533.6223 1533.5166 1533.4679
#> Jun 2008 1411.2315 1411.3132 1412.8497 1412.3967 1412.5693 1412.5947 1412.4508
#> Jul 2008 1573.7916 1574.0651 1573.8675 1573.0927 1572.9246 1572.9911 1573.6920
#> Aug 2008 1494.4428 1494.3194 1494.0204 1494.1478 1493.9853 1494.0526 1493.7246
#> Sep 2008 1530.5022 1530.5474 1530.4828 1530.5201 1530.4412 1530.4491 1530.6486
#> Oct 2008 1514.0646 1514.1608 1514.1510 1514.3161 1514.2455 1514.1830 1514.5211
#> Nov 2008 1533.0674 1532.8920 1532.4908 1532.7241 1532.5050 1532.5787 1532.1233
#> Dec 2008 1580.2423 1580.3281 1580.2464 1580.3904 1580.3227 1580.2882 1580.6503
#> Jan 2009 1593.4271 1593.3190 1592.8985 1593.5310 1594.0041 1593.8829 1593.4814
#> Feb 2009 1461.4062 1461.3774 1461.1548 1461.4874 1461.3711 1461.3464 1461.3701
#> Mar 2009 1611.4597 1611.3723 1611.1012 1611.4548 1611.3192 1611.3171 1611.2068
#> Apr 2009 1591.7940 1591.6999 1591.5225 1589.8697 1590.8191 1590.8261 1590.7359
#> May 2009 1644.1529 1644.0047 1644.0635 1644.9522 1644.6757 1644.6017 1644.1741
#> Jun 2009 1503.8080 1504.0927 1506.9183 1506.4278 1506.7028 1506.7214 1506.8318
#> Jul 2009 1550.0132 1550.3400 1549.7599 1548.2984 1548.0677 1548.2439 1549.0007
#> Aug 2009 1582.2237 1582.0986 1581.6925 1582.1044 1581.7421 1581.8077 1581.5024
#> Sep 2009 1550.2832 1550.3245 1550.1688 1550.4260 1550.2217 1550.2266 1550.4385
#> Oct 2009 1615.5390 1615.5185 1615.2595 1615.6687 1615.4203 1615.3969 1615.4026
#> Nov 2009 1580.2791 1580.2119 1579.8963 1580.2491 1580.0149 1580.0399 1579.9430
#> Dec 2009 1535.4661 1535.4944 1535.2626 1535.5441 1535.4257 1535.3883 1535.6828
#> Jan 2010 1615.5640 1615.3384 1614.8848 1615.5612 1616.1320 1616.0311 1615.2804
#> Feb 2010 1538.7613 1538.6936 1538.1521 1538.7001 1538.6665 1538.4854 1538.5029
#> Mar 2010 1531.2835 1531.2930 1530.9928 1531.2904 1531.3000 1531.2334 1531.5971
#> Apr 2010 1521.5134 1521.2611 1521.0768 1518.6859 1520.2252 1520.2026 1520.0172
#> May 2010 1537.4654 1537.2198 1537.0289 1537.9747 1537.7423 1537.6694 1537.2323
#> Jun 2010 1561.0590 1561.9520 1567.2308 1566.7364 1567.1819 1567.2759 1567.4094
#> Jul 2010 1573.8536 1574.1064 1572.6919 1570.0824 1569.7219 1570.1669 1570.6539
#> Aug 2010 1543.2452 1543.1226 1542.4049 1544.2312 1542.5568 1542.5698 1542.6346
#> Sep 2010 1574.9887 1574.9749 1574.5873 1575.0253 1574.7505 1574.7352 1574.9852
#> Oct 2010 1554.6562 1554.4633 1553.8169 1554.3862 1554.0383 1554.0432 1553.6989
#> Nov 2010 1541.6276 1541.6124 1541.2300 1541.6391 1541.4623 1541.4270 1541.6577
#> Dec 2010 1515.1393 1515.1054 1514.6794 1515.0611 1514.9679 1514.9124 1515.1833
#> Jan 2011 1546.7164 1546.5020 1546.1992 1546.7697 1547.5528 1547.4369 1546.7020
#> Feb 2011 1547.8318 1547.7471 1547.0427 1547.5414 1547.8188 1547.4767 1547.4411
#> Mar 2011 1509.8768 1509.7947 1509.6771 1509.7251 1510.2134 1510.0803 1510.3134
#> Apr 2011 1578.9901 1578.6166 1578.4804 1575.6181 1577.6515 1577.6092 1577.1185
#> May 2011 1502.2083 1502.0076 1502.0214 1502.3943 1502.7153 1502.5705 1502.4293
#> Jun 2011 1484.7678 1486.1530 1493.2578 1492.4984 1493.4403 1493.5323 1493.6212
#> Jul 2011 1540.7407 1540.8652 1539.3433 1535.4666 1535.4462 1536.0712 1536.1274
#> Aug 2011 1490.8548 1490.5407 1486.5663 1493.0312 1486.5230 1486.8421 1488.3802
#> Sep 2011 1490.3106 1490.2430 1490.1738 1490.1329 1490.2508 1490.2283 1490.3100
#> Oct 2011 1491.0365 1490.7897 1490.4578 1490.5146 1490.5375 1490.5541 1490.0030
#> Nov 2011 1500.7380 1500.7413 1500.6548 1500.5984 1500.7627 1500.7257 1500.7224
#> Dec 2011 1517.9975 1517.9479 1517.5488 1517.5501 1517.7195 1517.7059 1517.3951
#> Jan 2012 1472.5599 1472.4860 1472.6558 1472.6076 1473.7167 1473.6179 1473.1054
#> Feb 2012 1513.5630 1513.3187 1511.3004 1513.0202 1513.7596 1512.0738 1512.3435
#> Mar 2012 1540.5556 1540.6009 1540.3389 1540.3165 1541.3325 1541.3592 1541.0575
#> Apr 2012 1500.1701 1500.0626 1499.8973 1497.1714 1499.6970 1499.8633 1499.3498
#> May 2012 1540.5017 1539.1225 1539.0749 1539.3047 1540.3631 1540.4246 1540.8320
#> Jun 2012 1647.2674 1649.6634 1661.1713 1660.7324 1662.3829 1662.8605 1662.8465
#> Jul 2012 1426.5199 1426.9201 1425.2423 1418.3436 1419.0000 1419.9173 1420.5618
#> Aug 2012 1563.9807 1563.2559 1555.3122 1567.7931 1553.2355 1554.3102 1557.7077
#> Sep 2012 1543.2224 1542.9037 1543.0092 1542.9850 1544.0459 1542.2634 1542.1952
#> Oct 2012 1503.0468 1503.0012 1503.1439 1502.3994 1503.2418 1503.6985 1500.0136
#> Nov 2012 1509.5840 1509.5890 1509.6349 1509.1839 1509.5834 1509.7593 1510.7723
#> Dec 2012 1544.0619 1543.9770 1543.5856 1543.3016 1543.9830 1543.8348 1543.3910
#> Jan 2013 1489.0802 1489.1016 1489.4935 1488.8838 1490.5212 1490.4882 1489.5106
#> Feb 2013 1556.4474 1555.9877 1552.6279 1555.3691 1556.6550 1553.7528 1554.1594
#> Mar 2013 1536.0965 1536.4507 1536.1710 1535.7732 1537.3502 1537.5417 1536.9047
#> Apr 2013 1492.7585 1493.0935 1493.1875 1491.1240 1493.8755 1494.1994 1493.9237
#> May 2013 1525.5181 1522.7262 1522.7235 1522.4754 1524.2318 1524.6202 1525.3345
#> Jun 2013 1581.1819 1584.0761 1598.3745 1597.7770 1599.9770 1600.8820 1601.1001
#> Jul 2013 1389.9551 1390.6597 1388.9873 1379.8940 1381.2738 1382.5652 1384.0767
#> Aug 2013 1553.9900 1552.7659 1540.2825 1558.5260 1536.7331 1538.8100 1544.1663
#> Sep 2013 1521.2532 1521.0879 1522.0232 1521.8173 1524.1000 1519.9169 1521.3684
#> Oct 2013 1524.9712 1524.9209 1525.3133 1523.6385 1525.2031 1526.3351 1515.7729
#> Nov 2013 1516.9922 1516.9319 1517.1043 1516.1666 1516.6313 1517.1157 1519.1920
#> Dec 2013 1513.6384 1513.7716 1513.8406 1513.0245 1514.2861 1513.8867 1514.1788
#> Jan 2014 1536.7370 1536.7111 1537.2337 1535.8637 1538.0496 1538.1559 1536.2342
#> Feb 2014 1497.8412 1497.1637 1492.3194 1496.2441 1497.9044 1493.6743 1494.5331
#> Mar 2014 1495.8138 1496.4670 1496.2127 1495.6949 1497.7069 1498.0559 1497.4233
#> Apr 2014 1520.5137 1521.3684 1521.1731 1519.7532 1522.4645 1523.1191 1523.1106
#> May 2014 1508.0625 1503.6148 1503.3372 1502.9839 1505.1401 1505.9755 1506.8157
#> Jun 2014 1489.6606 1493.3403 1510.6710 1509.9973 1512.5245 1513.8599 1515.2392
#> Jul 2014 1512.2858 1513.3071 1510.7907 1498.6750 1500.6811 1502.6681 1505.2015
#> Aug 2014 1472.0931 1470.5466 1456.4207 1477.0518 1451.7378 1454.5206 1460.9782
#> Sep 2014 1507.2582 1507.2135 1508.5612 1508.5673 1511.9319 1505.0782 1508.4915
#> Oct 2014 1537.8851 1537.8228 1537.9802 1535.6854 1537.7572 1539.6414 1520.3758
#> Nov 2014 1544.0539 1543.8421 1543.6536 1542.6100 1542.8203 1543.6377 1547.3841
#> Dec 2014 1517.5951 1517.8131 1518.0458 1517.0836 1518.7260 1517.9922 1519.3651
#> Jan 2015 1561.9731 1561.7354 1561.9293 1560.2801 1562.8142 1563.0455 1559.8352
#> Feb 2015 1491.6295 1490.8741 1485.5806 1489.6474 1491.5124 1486.8492 1488.1010
#> Mar 2015 1528.5249 1529.5923 1529.7156 1528.6234 1530.9822 1531.3318 1531.4203
#> Apr 2015 1554.8927 1555.9873 1555.9863 1554.9795 1557.5490 1558.2869 1558.3599
#> May 2015 NaN 1535.5040 1535.4621 1534.4702 1536.9340 1538.0235 1538.9040
#> Jun 2015 NaN NaN 1518.4688 1517.0439 1519.8213 1521.3632 1523.8244
#> Jul 2015 NaN NaN NaN 1544.3398 1546.7949 1549.0616 1552.3571
#> Aug 2015 NaN NaN NaN NaN 1541.9411 1545.5783 1554.3383
#> Sep 2015 NaN NaN NaN NaN NaN 1553.7438 1558.5384
#> Oct 2015 NaN NaN NaN NaN NaN NaN 1614.1341
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 71 Series 72 Series 73 Series 74 Series 75 Series 76 Series 77
#> Apr 1982 489.6925 489.6883 489.7043 489.7032 489.7385 489.7753 489.7646
#> May 1982 478.1808 478.1895 478.1687 478.1698 478.2413 478.2812 478.2701
#> Jun 1982 486.8931 486.8790 486.9162 486.9141 486.9201 486.9304 486.9381
#> Jul 1982 485.1782 485.1750 485.1835 485.1830 485.1748 485.1756 485.1770
#> Aug 1982 491.0041 491.0178 490.9824 490.9844 490.9544 490.9421 490.9333
#> Sep 1982 497.3044 497.2821 497.3391 497.3359 497.3518 497.3526 497.3676
#> Oct 1982 480.8430 480.8640 480.8094 480.8125 480.7715 480.7492 480.7372
#> Nov 1982 485.9405 485.9369 485.9458 485.9453 485.9316 485.9217 485.9259
#> Dec 1982 488.6789 488.6548 488.7166 488.7131 488.7225 488.7234 488.7410
#> Jan 1983 444.5377 444.5792 444.4704 444.4766 444.5313 444.4860 444.4630
#> Feb 1983 504.3803 504.3822 504.3768 504.3771 504.3528 504.3395 504.3401
#> Mar 1983 513.0844 513.0636 513.1322 513.1279 513.1720 513.2891 513.2669
#> Apr 1983 560.8769 560.8991 560.8275 560.8320 560.7088 560.6340 560.6506
#> May 1983 481.6977 481.6841 481.7212 481.7191 481.8206 481.8758 481.8795
#> Jun 1983 507.4531 507.4362 507.4807 507.4782 507.4866 507.5003 507.5095
#> Jul 1983 499.1224 499.1462 499.0849 499.0883 499.0483 499.0329 499.0172
#> Aug 1983 510.3660 510.3511 510.3898 510.3876 510.3932 510.3982 510.4079
#> Sep 1983 516.4730 516.4487 516.5107 516.5072 516.5281 516.5299 516.5462
#> Oct 1983 514.9955 515.0203 514.9555 514.9592 514.9145 514.8904 514.8760
#> Nov 1983 528.9729 528.9705 528.9754 528.9752 528.9462 528.9140 528.9205
#> Dec 1983 531.3670 531.3678 531.3650 531.3652 531.3464 531.3333 531.3352
#> Jan 1984 481.5251 481.5442 481.4934 481.4963 481.5741 481.5422 481.5340
#> Feb 1984 534.4846 534.4781 534.4944 534.4935 534.4815 534.4725 534.4792
#> Mar 1984 555.1270 555.1308 555.1174 555.1183 554.9955 555.0239 555.0273
#> Apr 1984 521.3606 521.3825 521.3335 521.3361 521.3582 521.3844 521.3521
#> May 1984 560.5717 560.5297 560.6405 560.6342 560.7858 560.8671 560.8891
#> Jun 1984 553.1195 553.1262 553.1095 553.1104 553.0878 553.0884 553.0824
#> Jul 1984 574.8967 574.8986 574.8937 574.8939 574.8819 574.8776 574.8733
#> Aug 1984 564.8868 564.8646 564.9220 564.9188 564.9344 564.9429 564.9578
#> Sep 1984 570.4125 570.4408 570.3660 570.3703 570.3310 570.3006 570.2834
#> Oct 1984 578.7044 578.6805 578.7419 578.7384 578.7550 578.7597 578.7776
#> Nov 1984 579.1204 579.1193 579.1195 579.1196 579.0709 579.0077 579.0193
#> Dec 1984 571.6215 571.6516 571.5727 571.5772 571.5294 571.5012 571.4849
#> Jan 1985 594.1439 594.1321 594.1610 594.1594 594.2635 594.2498 594.2628
#> Feb 1985 610.7595 610.7599 610.7579 610.7580 610.7438 610.7300 610.7333
#> Mar 1985 604.7502 604.7843 604.7014 604.7059 604.5921 604.6642 604.6263
#> Apr 1985 629.6414 629.6341 629.6565 629.6551 629.6872 629.7078 629.7034
#> May 1985 661.9171 661.8726 661.9900 661.9833 662.1366 662.2200 662.2438
#> Jun 1985 623.6171 623.6548 623.5574 623.5629 623.5060 623.4892 623.4620
#> Jul 1985 633.7611 633.7322 633.8061 633.8019 633.8355 633.8465 633.8579
#> Aug 1985 666.9933 666.9932 666.9927 666.9928 666.9875 666.9813 666.9823
#> Sep 1985 609.4920 609.4933 609.4884 609.4887 609.4885 609.4758 609.4766
#> Oct 1985 660.9219 660.8976 660.9599 660.9564 660.9787 660.9876 661.0068
#> Nov 1985 651.7515 651.7857 651.6934 651.6987 651.5837 651.4656 651.4629
#> Dec 1985 636.8324 636.8361 636.8259 636.8265 636.8150 636.8076 636.8107
#> Jan 1986 659.0458 659.0245 659.0785 659.0755 659.1538 659.1539 659.1745
#> Feb 1986 652.4230 652.4229 652.4226 652.4226 652.4157 652.4069 652.4118
#> Mar 1986 610.8457 610.8823 610.8145 610.8175 610.8555 611.0289 610.9405
#> Apr 1986 658.4506 658.4364 658.4548 658.4543 658.3521 658.2698 658.3190
#> May 1986 726.8350 726.8268 726.8499 726.8485 726.9545 727.0126 727.0103
#> Jun 1986 603.8311 603.8408 603.8157 603.8171 603.8032 603.8017 603.7874
#> Jul 1986 703.4177 703.3839 703.4702 703.4653 703.5184 703.5319 703.5341
#> Aug 1986 676.5818 676.6136 676.5303 676.5351 676.5020 676.4778 676.4510
#> Sep 1986 711.5098 711.4793 711.5564 711.5521 711.6010 711.6060 711.6215
#> Oct 1986 690.3173 690.2924 690.3562 690.3526 690.3803 690.3915 690.4106
#> Nov 1986 655.9485 656.0148 655.8387 655.8488 655.6895 655.5502 655.5340
#> Dec 1986 714.5656 714.5341 714.6151 714.6105 714.6347 714.6528 714.6921
#> Jan 1987 720.5637 720.5685 720.5551 720.5559 720.5496 720.5438 720.5656
#> Feb 1987 708.6351 708.6339 708.6363 708.6362 708.6160 708.6121 708.6395
#> Mar 1987 702.2848 702.2939 702.2643 702.2662 702.0877 702.1306 702.1593
#> Apr 1987 707.3863 707.3652 707.4412 707.4363 707.6455 707.7276 707.6541
#> May 1987 710.0523 710.0859 709.9998 710.0046 710.0047 710.0213 710.0119
#> Jun 1987 715.0294 715.0204 715.0434 715.0421 715.1304 715.0999 715.0267
#> Jul 1987 773.8878 773.8449 773.9539 773.9478 774.0078 774.0273 774.0444
#> Aug 1987 704.5664 704.5928 704.5196 704.5238 704.5457 704.5664 704.4995
#> Sep 1987 721.4185 721.3904 721.4611 721.4571 721.4982 721.5086 721.5279
#> Oct 1987 744.4694 744.4765 744.4571 744.4582 744.4449 744.4442 744.4469
#> Nov 1987 683.5771 683.6148 683.5128 683.5187 683.3879 683.2694 683.2767
#> Dec 1987 751.4104 751.3745 751.4672 751.4620 751.4812 751.5111 751.5634
#> Jan 1988 754.0141 754.0539 753.9509 753.9568 753.8683 753.8546 753.8747
#> Feb 1988 738.2615 738.2491 738.2821 738.2803 738.2366 738.2482 738.3205
#> Mar 1988 757.5889 757.5627 757.6486 757.6433 757.6266 757.7787 757.8380
#> Apr 1988 787.8904 787.8977 787.8801 787.8811 787.9144 787.8354 787.7936
#> May 1988 744.8331 744.8364 744.8304 744.8308 744.7796 744.8007 744.8779
#> Jun 1988 757.8003 757.8112 757.7835 757.7850 757.9470 757.8440 757.6664
#> Jul 1988 756.0418 756.0624 756.0017 756.0052 756.0444 756.0299 755.9453
#> Aug 1988 749.9444 749.8971 750.0039 749.9978 750.2572 750.4053 750.2318
#> Sep 1988 777.0205 776.9968 777.0552 777.0519 777.1609 777.1845 777.1210
#> Oct 1988 772.7755 772.8193 772.7071 772.7135 772.5966 772.5718 772.6083
#> Nov 1988 785.7901 785.7904 785.7876 785.7879 785.6588 785.5789 785.6621
#> Dec 1988 809.9493 809.9457 809.9565 809.9559 809.8842 809.8959 809.9772
#> Jan 1989 753.5780 753.5835 753.5711 753.5719 753.4780 753.4861 753.5730
#> Feb 1989 768.5339 768.5300 768.5430 768.5423 768.4373 768.4476 768.5634
#> Mar 1989 793.1022 793.0728 793.1754 793.1689 793.1818 793.3447 793.4459
#> Apr 1989 786.5369 786.5804 786.4636 786.4704 786.4226 786.2578 786.1974
#> May 1989 770.5642 770.5349 770.6147 770.6102 770.5110 770.5364 770.6957
#> Jun 1989 815.7159 815.7458 815.6692 815.6735 815.9291 815.7474 815.4459
#> Jul 1989 798.9530 798.9668 798.9171 798.9200 799.0296 799.0224 798.8753
#> Aug 1989 834.9733 834.9179 835.0315 835.0250 835.4779 835.7372 835.3782
#> Sep 1989 821.7622 821.7811 821.7280 821.7311 821.8684 821.8860 821.7078
#> Oct 1989 784.3687 784.3748 784.3624 784.3632 784.2333 784.2272 784.3455
#> Nov 1989 827.9848 827.9786 827.9965 827.9956 827.8458 827.8024 827.9371
#> Dec 1989 818.7391 818.7719 818.6907 818.6953 818.5356 818.5208 818.6196
#> Jan 1990 804.8806 804.8516 804.9312 804.9267 804.8310 804.8541 805.0041
#> Feb 1990 813.2184 813.2134 813.2318 813.2308 813.0844 813.0927 813.2491
#> Mar 1990 855.0780 855.0824 855.0555 855.0578 854.7283 854.6268 854.8558
#> Apr 1990 791.9700 791.9811 791.9884 791.9870 792.1907 792.2270 792.1359
#> May 1990 821.0591 821.0287 821.1132 821.1084 820.9537 820.9699 821.1809
#> Jun 1990 863.4986 863.5781 863.3733 863.3849 863.6210 863.3846 863.0103
#> Jul 1990 792.7090 792.6821 792.7320 792.7292 792.9615 792.9803 792.7802
#> Aug 1990 875.8477 875.7906 875.8960 875.8899 876.5463 876.8647 876.2932
#> Sep 1990 811.3163 811.3779 811.2126 811.2220 811.3951 811.3991 811.1010
#> Oct 1990 804.5427 804.5097 804.6003 804.5952 804.4575 804.4660 804.6637
#> Nov 1990 833.1331 833.1176 833.1627 833.1602 832.9982 832.9914 833.1771
#> Dec 1990 823.6016 823.6354 823.5530 823.5577 823.3496 823.3239 823.4684
#> Jan 1991 821.9956 821.9668 822.0483 822.0437 821.9048 821.9171 822.1095
#> Feb 1991 833.2761 833.2688 833.2963 833.2948 833.1181 833.1198 833.3108
#> Mar 1991 813.1987 813.2459 813.1553 813.1598 813.0679 813.1525 813.2577
#> Apr 1991 833.2064 833.1808 833.2428 833.2397 833.1944 833.0346 833.0733
#> May 1991 828.1724 828.1365 828.2379 828.2322 828.0766 828.0955 828.3180
#> Jun 1991 777.4943 777.6033 777.3245 777.3403 777.4965 777.2642 776.9151
#> Jul 1991 882.9118 882.8476 882.9627 882.9562 883.3615 883.4002 883.0782
#> Aug 1991 900.2449 900.2243 900.2341 900.2334 900.9129 901.2226 900.5580
#> Sep 1991 803.2082 803.2311 803.1685 803.1721 803.3740 803.4014 803.1468
#> Oct 1991 866.7725 866.7325 866.8439 866.8377 866.6858 866.6978 866.9236
#> Nov 1991 856.6866 856.7097 856.6574 856.6604 856.4474 856.4234 856.5942
#> Dec 1991 842.6399 842.6380 842.6505 842.6498 842.4806 842.4708 842.6447
#> Jan 1992 872.6840 872.6501 872.7498 872.7441 872.6204 872.6326 872.8264
#> Feb 1992 887.1086 887.1320 887.0823 887.0852 886.8668 886.8444 887.0231
#> Mar 1992 831.8929 831.9018 831.8741 831.8762 831.5772 831.4938 831.7135
#> Apr 1992 877.9790 877.9572 878.0492 878.0432 878.1692 878.2141 878.2365
#> May 1992 889.2112 889.2556 889.1529 889.1588 888.8954 888.8650 889.0505
#> Jun 1992 844.8385 844.8653 844.8031 844.8066 844.9859 844.8332 844.6139
#> Jul 1992 873.6360 873.5772 873.6509 873.6467 874.1572 874.1886 873.7373
#> Aug 1992 855.6668 855.6842 855.6008 855.6055 856.2629 856.4738 855.7589
#> Sep 1992 880.9273 880.9154 880.9459 880.9442 881.2010 881.2525 881.0104
#> Oct 1992 910.6396 910.6368 910.6551 910.6541 910.4376 910.4272 910.6520
#> Nov 1992 885.6721 885.6962 885.6439 885.6469 885.4153 885.3892 885.5798
#> Dec 1992 865.2809 865.2425 865.3513 865.3452 865.2106 865.2193 865.4288
#> Jan 1993 909.9284 909.9795 909.8632 909.8697 909.6594 909.6235 909.7536
#> Feb 1993 878.7586 878.7520 878.7800 878.7785 878.6261 878.6204 878.7905
#> Mar 1993 888.9605 888.9295 889.0077 889.0037 888.8021 888.7529 888.9595
#> Apr 1993 884.4540 884.4308 884.5200 884.5144 884.5861 884.6422 884.6943
#> May 1993 916.1400 916.1829 916.0851 916.0906 915.8881 915.8629 915.9929
#> Jun 1993 911.4800 911.4899 911.4754 911.4762 911.5689 911.4848 911.3836
#> Jul 1993 857.8277 857.8224 857.7390 857.7437 858.2163 858.2160 857.6944
#> Aug 1993 856.5599 856.5353 856.5791 856.5766 857.2151 857.3327 856.7177
#> Sep 1993 908.2575 908.2567 908.2644 908.2642 908.3760 908.4140 908.3067
#> Oct 1993 900.0920 900.1276 900.0470 900.0516 899.8389 899.8135 899.9655
#> Nov 1993 883.9761 883.9562 884.0176 884.0142 883.8775 883.8822 884.0608
#> Dec 1993 895.0620 895.0245 895.1297 895.1237 895.0200 895.0312 895.2086
#> Jan 1994 888.0173 888.0657 887.9543 887.9604 887.8122 887.7847 887.8609
#> Feb 1994 908.1031 908.0988 908.1152 908.1143 908.0033 907.9967 908.1194
#> Mar 1994 932.3980 932.3671 932.4730 932.4664 932.5366 932.6500 932.7291
#> Apr 1994 918.1562 918.1711 918.1191 918.1227 917.8817 917.7749 917.9060
#> May 1994 911.5160 911.5168 911.5230 911.5226 911.4339 911.4343 911.5276
#> Jun 1994 943.4571 943.4530 943.4999 943.4972 943.4973 943.4951 943.5233
#> Jul 1994 868.6822 868.7264 868.5205 868.5321 868.8748 868.8455 868.3681
#> Aug 1994 929.2744 929.2030 929.3830 929.3728 930.0553 930.0782 929.5065
#> Sep 1994 953.9335 953.9426 953.9278 953.9292 953.9041 953.9268 953.9478
#> Oct 1994 954.4252 954.4641 954.3739 954.3791 954.2130 954.1919 954.2930
#> Nov 1994 911.1226 911.0998 911.1669 911.1631 911.0746 911.0879 911.2242
#> Dec 1994 956.8296 956.8366 956.8228 956.8235 956.6954 956.6886 956.8072
#> Jan 1995 886.8754 886.8762 886.8628 886.8631 886.7919 886.7973 886.8662
#> Feb 1995 934.0152 934.0124 934.0160 934.0156 933.9312 933.9304 934.0185
#> Mar 1995 956.6782 956.6367 956.7241 956.7194 956.5946 956.5420 956.6721
#> Apr 1995 973.1403 973.2042 973.0519 973.0598 973.0345 973.0781 973.0532
#> May 1995 927.3299 927.2865 927.3976 927.3912 927.3966 927.4263 927.5010
#> Jun 1995 945.0345 945.0303 945.1300 945.1240 945.1136 945.1435 945.2072
#> Jul 1995 963.7973 963.8576 963.6325 963.6470 963.9109 963.8740 963.4649
#> Aug 1995 1013.0445 1012.9656 1013.1777 1013.1655 1013.7503 1013.7087 1013.2510
#> Sep 1995 930.1034 930.1624 930.0168 930.0257 929.8027 929.7850 929.9154
#> Oct 1995 938.6781 938.6749 938.6878 938.6869 938.6333 938.6428 938.7067
#> Nov 1995 968.0260 967.9938 968.0793 968.0743 968.0505 968.0752 968.1619
#> Dec 1995 984.0011 984.0549 983.9124 983.9203 983.7854 983.7576 983.7933
#> Jan 1996 970.7152 970.6623 970.7412 970.7359 970.7472 970.7815 970.8328
#> Feb 1996 974.8972 974.8814 974.9069 974.9052 974.8656 974.8749 974.9370
#> Mar 1996 963.2083 963.2543 963.1128 963.1207 962.9648 962.9047 962.9382
#> Apr 1996 960.6581 960.6283 960.6973 960.6929 960.7199 960.7692 960.8183
#> May 1996 968.8775 968.8317 968.9372 968.9310 968.9366 968.9649 969.0374
#> Jun 1996 974.0018 974.1091 974.0042 974.0093 973.8985 973.8829 973.8778
#> Jul 1996 958.3981 958.3650 958.4359 958.4354 958.6818 958.7011 958.5209
#> Aug 1996 1035.8297 1035.7949 1035.8858 1035.8804 1036.3532 1036.2802 1035.8487
#> Sep 1996 907.2960 907.3534 907.2047 907.2137 907.0039 906.9844 907.0996
#> Oct 1996 949.5824 949.5388 949.6503 949.6438 949.6492 949.6806 949.7568
#> Nov 1996 982.6575 982.6670 982.6395 982.6409 982.5805 982.5807 982.6241
#> Dec 1996 965.5480 965.5565 965.5245 965.5261 965.4644 965.4629 965.5073
#> Jan 1997 974.6984 974.6349 974.6928 974.6883 974.6960 974.7222 974.7585
#> Feb 1997 1002.1963 1002.1929 1002.1722 1002.1727 1002.1390 1002.1400 1002.1696
#> Mar 1997 983.8109 983.8528 983.7404 983.7451 983.8646 983.9848 983.9069
#> Apr 1997 946.8462 946.8138 946.8312 946.8304 946.6428 946.5146 946.6200
#> May 1997 1014.5385 1014.5323 1014.5078 1014.5084 1014.4850 1014.4852 1014.5051
#> Jun 1997 892.8722 892.9442 893.0221 893.0164 893.0003 893.0237 893.0141
#> Jul 1997 1008.6071 1008.5740 1008.6823 1008.6843 1008.8231 1008.8420 1008.8056
#> Aug 1997 982.3901 982.4149 982.3644 982.3666 982.6272 982.5402 982.2159
#> Sep 1997 1014.4866 1014.4996 1014.4634 1014.4656 1014.3152 1014.3222 1014.4569
#> Oct 1997 996.5460 996.5014 996.6066 996.6001 996.6251 996.6557 996.7088
#> Nov 1997 1013.6944 1013.7481 1013.5939 1013.6021 1013.5066 1013.4792 1013.4706
#> Dec 1997 979.2248 979.1854 979.2644 979.2593 979.2746 979.2991 979.3510
#> Jan 1998 1066.3660 1066.3392 1066.2598 1066.2626 1066.2144 1066.2060 1066.1999
#> Feb 1998 989.9392 989.9330 989.9079 989.9085 989.8977 989.8977 989.9079
#> Mar 1998 988.3433 988.3344 988.2866 988.2889 988.1588 988.0651 988.1140
#> Apr 1998 1028.2659 1028.2310 1028.2825 1028.2780 1028.4245 1028.5242 1028.5038
#> May 1998 998.5310 998.5678 998.4135 998.4214 998.3619 998.3317 998.3047
#> Jun 1998 914.5703 914.6166 914.8523 914.8373 914.8960 914.9524 914.9399
#> Jul 1998 1070.8323 1070.7943 1070.9315 1070.9353 1070.9633 1070.9837 1071.0856
#> Aug 1998 1027.6573 1027.6955 1027.6230 1027.6263 1027.7759 1027.7119 1027.4800
#> Sep 1998 1015.5718 1015.5702 1015.5738 1015.5733 1015.4987 1015.5099 1015.5901
#> Oct 1998 1052.4083 1052.4132 1052.3850 1052.3858 1052.3707 1052.3703 1052.3688
#> Nov 1998 1024.4918 1024.4984 1024.4573 1024.4589 1024.4384 1024.4353 1024.4358
#> Dec 1998 1028.0495 1028.0103 1028.0791 1028.0743 1028.1067 1028.1284 1028.1610
#> Jan 1999 1100.7195 1100.7399 1100.5246 1100.5349 1100.4242 1100.3799 1100.3402
#> Feb 1999 1025.4965 1025.4895 1025.4600 1025.4605 1025.4562 1025.4547 1025.4610
#> Mar 1999 1042.5271 1042.4699 1042.5653 1042.5581 1042.6979 1042.7812 1042.7847
#> Apr 1999 1041.9774 1041.9350 1041.9631 1041.9606 1041.8994 1041.8394 1041.8972
#> May 1999 1042.7526 1042.7918 1042.6181 1042.6266 1042.5672 1042.5316 1042.4996
#> Jun 1999 966.1408 966.1911 966.4729 966.4552 966.5241 966.5869 966.5626
#> Jul 1999 1089.4327 1089.4405 1089.4371 1089.4524 1089.4245 1089.4130 1089.4813
#> Aug 1999 1057.0802 1057.0871 1057.1156 1057.1129 1057.1792 1057.1687 1057.0879
#> Sep 1999 1086.0356 1086.0170 1086.0741 1086.0699 1086.0588 1086.0770 1086.1223
#> Oct 1999 1084.9289 1084.9864 1084.8196 1084.8279 1084.7566 1084.7227 1084.6779
#> Nov 1999 1076.7067 1076.6690 1076.7359 1076.7310 1076.7725 1076.7924 1076.8121
#> Dec 1999 1074.3039 1074.2575 1074.3381 1074.3322 1074.3812 1074.4036 1074.4312
#> Jan 2000 1079.8238 1079.8552 1079.6374 1079.6480 1079.5470 1079.5001 1079.4522
#> Feb 2000 1072.4072 1072.3868 1072.3958 1072.3942 1072.4129 1072.4188 1072.4311
#> Mar 2000 1070.9978 1070.9413 1071.0059 1071.0015 1070.9214 1070.8426 1070.9238
#> Apr 2000 1101.4248 1101.4916 1101.2793 1101.2895 1101.3180 1101.3552 1101.2700
#> May 2000 1069.8420 1069.7887 1069.8673 1069.8617 1069.9175 1069.9378 1069.9696
#> Jun 2000 1256.7541 1256.8008 1257.1506 1257.1288 1257.2139 1257.2897 1257.2657
#> Jul 2000 897.4743 897.5036 897.3967 897.4151 897.3561 897.3283 897.3480
#> Aug 2000 1177.9182 1177.8753 1178.0455 1178.0347 1178.1039 1178.1421 1178.1584
#> Sep 2000 1157.6071 1157.6292 1157.5935 1157.5942 1157.5759 1157.5681 1157.5460
#> Oct 2000 1102.7073 1102.7181 1102.6797 1102.6807 1102.6674 1102.6600 1102.6464
#> Nov 2000 1093.6854 1093.6657 1093.6943 1093.6915 1093.7165 1093.7270 1093.7354
#> Dec 2000 1151.1463 1151.2082 1151.0128 1151.0224 1150.9431 1150.9011 1150.8582
#> Jan 2001 1113.8560 1113.7969 1113.8580 1113.8530 1113.8860 1113.9004 1113.9209
#> Feb 2001 1140.1639 1140.1582 1140.1353 1140.1354 1140.1372 1140.1346 1140.1393
#> Mar 2001 1214.7237 1214.7180 1214.6535 1214.6562 1214.5128 1214.4039 1214.4557
#> Apr 2001 1106.0039 1106.0187 1105.9499 1105.9520 1106.0315 1106.0907 1106.0463
#> May 2001 1147.1917 1147.1449 1147.2149 1147.2096 1147.2592 1147.2775 1147.3084
#> Jun 2001 1101.4963 1101.5634 1101.7045 1101.6952 1101.7001 1101.7284 1101.6841
#> Jul 2001 1148.2217 1148.1775 1148.1926 1148.2074 1148.2185 1148.2246 1148.2749
#> Aug 2001 1122.1747 1122.1401 1122.2973 1122.2873 1122.3472 1122.3823 1122.3981
#> Sep 2001 1123.2758 1123.3494 1123.1965 1123.2037 1123.1245 1123.0881 1123.0389
#> Oct 2001 1156.3217 1156.2814 1156.3829 1156.3759 1156.4277 1156.4528 1156.4738
#> Nov 2001 1190.4842 1190.4775 1190.4796 1190.4780 1190.4941 1190.5010 1190.5023
#> Dec 2001 1208.6440 1208.7070 1208.5149 1208.5241 1208.4467 1208.4059 1208.3626
#> Jan 2002 1173.2923 1173.2494 1173.3162 1173.3111 1173.3504 1173.3676 1173.3888
#> Feb 2002 1174.1385 1174.1333 1174.1217 1174.1214 1174.1269 1174.1272 1174.1315
#> Mar 2002 1184.3273 1184.3852 1184.2356 1184.2417 1184.4155 1184.5578 1184.4342
#> Apr 2002 1197.2674 1197.2341 1197.2474 1197.2470 1196.9891 1196.7886 1196.9151
#> May 2002 1223.4413 1223.4000 1223.4824 1223.4768 1223.5269 1223.5484 1223.5772
#> Jun 2002 1219.6032 1219.6916 1219.6665 1219.6675 1219.6156 1219.6095 1219.5474
#> Jul 2002 1120.3658 1120.2476 1120.4238 1120.4255 1120.5246 1120.5730 1120.6404
#> Aug 2002 1251.2786 1251.3028 1251.3055 1251.3045 1251.2943 1251.2958 1251.2775
#> Sep 2002 1164.8108 1164.8321 1164.8249 1164.8241 1164.8086 1164.8023 1164.7930
#> Oct 2002 1235.4576 1235.4186 1235.5286 1235.5214 1235.5752 1235.6023 1235.6257
#> Nov 2002 1330.0961 1330.1665 1329.9848 1329.9938 1329.9235 1329.8903 1329.8448
#> Dec 2002 1249.4639 1249.4769 1249.4298 1249.4310 1249.4181 1249.4096 1249.4008
#> Jan 2003 1249.8388 1249.7979 1249.8885 1249.8822 1249.9340 1249.9577 1249.9836
#> Feb 2003 1250.7865 1250.7801 1250.7787 1250.7777 1250.7874 1250.7906 1250.7950
#> Mar 2003 1299.9923 1300.0604 1299.8329 1299.8452 1299.5995 1299.4388 1299.4509
#> Apr 2003 1289.7481 1289.7213 1289.7831 1289.7777 1289.9102 1289.9967 1289.9810
#> May 2003 1296.8111 1296.8219 1296.7862 1296.7873 1296.7772 1296.7733 1296.7654
#> Jun 2003 1284.4943 1284.4904 1284.5907 1284.5850 1284.6170 1284.6419 1284.6376
#> Jul 2003 1232.9373 1232.8123 1233.0360 1233.0344 1233.1519 1233.2147 1233.2756
#> Aug 2003 1298.4390 1298.5270 1298.3375 1298.3473 1298.2562 1298.2162 1298.1582
#> Sep 2003 1304.4090 1304.3823 1304.5169 1304.5091 1304.5521 1304.5767 1304.5975
#> Oct 2003 1342.5025 1342.4528 1342.5898 1342.5810 1342.6499 1342.6835 1342.7151
#> Nov 2003 1372.1854 1372.3275 1371.9668 1371.9859 1371.8323 1371.7582 1371.6686
#> Dec 2003 1300.5727 1300.5250 1300.6439 1300.6358 1300.6993 1300.7272 1300.7595
#> Jan 2004 1351.3184 1351.3380 1351.2810 1351.2831 1351.2650 1351.2543 1351.2433
#> Feb 2004 1327.4374 1327.4782 1327.3661 1327.3715 1327.3277 1327.3050 1327.2803
#> Mar 2004 1314.4689 1314.4230 1314.4983 1314.4933 1314.3783 1314.2795 1314.3692
#> Apr 2004 1344.7681 1344.7505 1344.7578 1344.7537 1344.8715 1344.9525 1344.9318
#> May 2004 1372.5972 1372.6656 1372.5105 1372.5192 1372.4448 1372.4158 1372.3662
#> Jun 2004 1400.3318 1400.2339 1400.5090 1400.4944 1400.6273 1400.6957 1400.7501
#> Jul 2004 1368.8980 1368.8355 1368.9565 1368.9599 1369.0206 1369.0651 1369.0711
#> Aug 2004 1359.3301 1359.3588 1359.3033 1359.3061 1359.2852 1359.2778 1359.2573
#> Sep 2004 1434.4644 1434.4479 1434.5747 1434.5692 1434.6030 1434.6285 1434.6366
#> Oct 2004 1412.2989 1412.3796 1412.1829 1412.1934 1412.1071 1412.0651 1412.0143
#> Nov 2004 1358.2065 1358.2179 1358.2021 1358.2021 1358.2060 1358.2056 1358.2033
#> Dec 2004 1355.2593 1355.2074 1355.3408 1355.3321 1355.4007 1355.4282 1355.4680
#> Jan 2005 1429.9788 1430.0613 1429.8292 1429.8405 1429.7409 1429.6846 1429.6414
#> Feb 2005 1426.6714 1426.6590 1426.6624 1426.6599 1426.6710 1426.6671 1426.6861
#> Mar 2005 1432.7960 1432.7542 1432.8529 1432.8424 1433.1634 1433.3821 1433.3195
#> Apr 2005 1285.5958 1285.6308 1285.3720 1285.3820 1285.0033 1284.7390 1284.8339
#> May 2005 1359.8937 1359.8753 1359.9228 1359.9190 1359.9365 1359.9535 1359.9587
#> Jun 2005 1452.2012 1452.1163 1452.4012 1452.3881 1452.5122 1452.5769 1452.6178
#> Jul 2005 1348.8568 1348.9162 1348.9361 1348.9540 1348.9480 1349.0076 1348.8810
#> Aug 2005 1396.8813 1396.8422 1396.9405 1396.9335 1396.9856 1397.0140 1397.0363
#> Sep 2005 1392.3235 1392.3103 1392.4236 1392.4192 1392.4413 1392.4642 1392.4662
#> Oct 2005 1377.2798 1377.3508 1377.1603 1377.1695 1377.0880 1377.0429 1377.0041
#> Nov 2005 1370.8828 1370.8804 1370.8795 1370.8778 1370.8893 1370.8812 1370.8991
#> Dec 2005 1393.1004 1393.1010 1393.0682 1393.0678 1393.0655 1393.0439 1393.0672
#> Jan 2006 1348.4384 1348.4409 1348.3766 1348.3770 1348.3645 1348.3349 1348.3615
#> Feb 2006 1423.0434 1423.0233 1422.9999 1422.9971 1423.0041 1422.9941 1423.0253
#> Mar 2006 1391.3652 1391.3130 1391.3098 1391.3054 1391.1356 1390.9812 1391.1141
#> Apr 2006 1436.7980 1436.9047 1436.4189 1436.4352 1436.4089 1436.4140 1436.3232
#> May 2006 1359.8949 1359.7887 1360.0124 1359.9947 1360.0839 1360.1781 1360.2008
#> Jun 2006 1420.9589 1420.9474 1421.3222 1421.3137 1421.4189 1421.4279 1421.4473
#> Jul 2006 1460.9568 1461.0726 1461.1403 1461.1645 1461.1721 1461.2982 1461.0696
#> Aug 2006 1430.5570 1430.5088 1430.6043 1430.5973 1430.6535 1430.7221 1430.7126
#> Sep 2006 1346.3992 1346.4436 1346.3757 1346.3817 1346.3290 1346.3555 1346.2782
#> Oct 2006 1405.6782 1405.6745 1405.6488 1405.6474 1405.6427 1405.6726 1405.6456
#> Nov 2006 1451.2321 1451.2088 1451.2375 1451.2343 1451.2600 1451.3019 1451.2891
#> Dec 2006 1447.8836 1447.9459 1447.7311 1447.7411 1447.6568 1447.6359 1447.5792
#> Jan 2007 1407.5607 1407.4654 1407.4530 1407.4374 1407.4846 1407.0069 1407.5998
#> Feb 2007 1437.7613 1437.7367 1437.6954 1437.6929 1437.6941 1437.7305 1437.7154
#> Mar 2007 1540.9881 1540.9929 1540.8022 1540.8073 1540.5782 1540.4366 1540.4907
#> Apr 2007 1385.7159 1385.7438 1385.4375 1385.4437 1385.4856 1385.5514 1385.4863
#> May 2007 1465.8125 1465.6730 1465.9335 1465.9099 1466.0007 1466.1922 1466.1423
#> Jun 2007 1496.0437 1496.2009 1496.4594 1496.4685 1496.4502 1496.3927 1496.2870
#> Jul 2007 1480.1819 1480.2782 1480.5636 1480.5841 1480.6883 1480.9380 1480.6404
#> Aug 2007 1521.1949 1521.1221 1521.2370 1521.2282 1521.3021 1521.4169 1521.3879
#> Sep 2007 1516.1645 1516.2831 1515.9815 1516.0005 1515.8466 1515.8657 1515.7000
#> Oct 2007 1501.1406 1501.0505 1501.2049 1501.1913 1501.2691 1501.3689 1501.3705
#> Nov 2007 1515.1379 1515.0860 1515.1626 1515.1565 1515.2026 1515.2892 1515.2588
#> Dec 2007 1525.7255 1525.7871 1525.5533 1525.5642 1525.4689 1525.4753 1525.3849
#> Jan 2008 1536.6679 1536.5294 1536.4148 1536.3900 1536.4228 1535.3741 1536.5865
#> Feb 2008 1513.2554 1513.2085 1513.2282 1513.2226 1513.2455 1513.3393 1513.2876
#> Mar 2008 1504.2272 1504.3053 1504.0153 1504.0254 1504.1674 1504.3488 1504.1618
#> Apr 2008 1544.8604 1544.7861 1544.5187 1544.5214 1544.2528 1544.1037 1544.2303
#> May 2008 1533.5789 1533.5044 1533.6059 1533.5898 1533.5820 1533.8240 1533.6306
#> Jun 2008 1412.3921 1412.6324 1412.9232 1412.9387 1412.8841 1412.8074 1412.6313
#> Jul 2008 1573.6923 1573.7192 1574.2055 1574.2169 1574.4177 1574.7750 1574.4599
#> Aug 2008 1493.7501 1493.8190 1493.5907 1493.6037 1493.5160 1493.6276 1493.4337
#> Sep 2008 1530.6615 1530.6322 1530.7018 1530.7006 1530.7326 1530.9193 1530.7709
#> Oct 2008 1514.5585 1514.4620 1514.6343 1514.6200 1514.7017 1514.8830 1514.8131
#> Nov 2008 1532.1697 1532.2620 1531.9694 1531.9855 1531.8574 1531.9505 1531.7384
#> Dec 2008 1580.6777 1580.5926 1580.7411 1580.7317 1580.8077 1580.9888 1580.9031
#> Jan 2009 1593.3991 1593.2868 1592.8594 1592.8367 1592.7536 1590.6649 1592.8455
#> Feb 2009 1461.4194 1461.3781 1461.3652 1461.3614 1461.3538 1461.5062 1461.3792
#> Mar 2009 1611.2488 1611.2247 1611.1048 1611.1074 1610.8578 1610.8118 1610.7786
#> Apr 2009 1590.4159 1590.2843 1590.1006 1590.0934 1590.3818 1590.7080 1590.6349
#> May 2009 1644.3385 1644.3218 1644.2339 1644.2265 1644.1160 1644.3918 1644.0789
#> Jun 2009 1506.7614 1507.0371 1507.4825 1507.4841 1507.4868 1507.5254 1507.1834
#> Jul 2009 1548.9794 1549.1348 1549.5835 1549.6107 1549.7980 1550.1932 1549.7619
#> Aug 2009 1581.5662 1581.6154 1581.4172 1581.4292 1581.3422 1581.5388 1581.2819
#> Sep 2009 1550.4827 1550.4296 1550.5152 1550.5150 1550.5544 1550.8217 1550.6203
#> Oct 2009 1615.4744 1615.4281 1615.4431 1615.4416 1615.4418 1615.6839 1615.4893
#> Nov 2009 1579.9938 1579.9929 1579.9184 1579.9269 1579.8927 1580.1321 1579.8839
#> Dec 2009 1535.7145 1535.6210 1535.7674 1535.7639 1535.8279 1536.0983 1535.9308
#> Jan 2010 1615.2057 1615.1342 1614.1924 1614.1970 1614.0135 1610.8590 1613.9912
#> Feb 2010 1538.5549 1538.4807 1538.7120 1538.6423 1538.5949 1538.7627 1538.6378
#> Mar 2010 1531.6414 1531.5108 1531.7007 1531.6893 1531.8848 1532.2217 1532.0619
#> Apr 2010 1519.5414 1519.3402 1519.1615 1519.1585 1519.1538 1519.3302 1519.3710
#> May 2010 1537.4152 1537.3775 1537.2968 1537.2932 1537.1800 1537.4984 1537.1677
#> Jun 2010 1567.3630 1567.7718 1568.1946 1568.1818 1568.2022 1568.3756 1567.6476
#> Jul 2010 1570.6505 1571.1088 1571.2536 1571.3287 1571.3903 1571.7250 1571.1258
#> Aug 2010 1542.7395 1542.6795 1542.7119 1542.7255 1542.7350 1543.0603 1542.9117
#> Sep 2010 1575.0785 1574.9762 1575.0944 1575.0935 1575.1454 1575.4949 1575.2618
#> Oct 2010 1553.8112 1553.8004 1553.6475 1553.6564 1553.5707 1553.8509 1553.5620
#> Nov 2010 1541.7190 1541.6076 1541.7323 1541.7288 1541.7822 1542.1625 1541.8922
#> Dec 2010 1515.2272 1515.0987 1515.2613 1515.2554 1515.3187 1515.7017 1515.4451
#> Jan 2011 1546.6350 1546.5392 1545.3122 1545.3253 1545.1337 1541.1798 1545.0729
#> Feb 2011 1547.4383 1547.3394 1547.8111 1547.6715 1547.5850 1547.7647 1547.6236
#> Mar 2011 1510.2421 1510.0818 1510.3167 1510.3102 1510.2235 1510.4480 1510.2998
#> Apr 2011 1576.5196 1576.3705 1576.1791 1576.1868 1576.4218 1576.8914 1576.6885
#> May 2011 1502.4544 1502.3598 1502.5123 1502.5120 1502.4933 1502.8705 1502.5713
#> Jun 2011 1493.4770 1493.9441 1494.2869 1494.2676 1494.3195 1494.6742 1493.6158
#> Jul 2011 1535.9863 1536.7583 1536.6835 1536.8186 1536.7399 1536.9780 1536.2148
#> Aug 2011 1489.6977 1489.6660 1489.8595 1489.8242 1489.9242 1490.3620 1490.5798
#> Sep 2011 1490.2998 1490.0915 1490.2210 1490.2340 1490.2884 1490.5942 1490.4074
#> Oct 2011 1490.0037 1489.8723 1489.6812 1489.7039 1489.6170 1489.8596 1489.5921
#> Nov 2011 1500.6821 1500.4147 1500.4861 1500.4890 1500.5469 1500.8959 1500.6509
#> Dec 2011 1517.3507 1517.1174 1517.0278 1517.0325 1517.0225 1517.3602 1517.0761
#> Jan 2012 1472.9727 1473.0276 1471.3814 1471.3974 1471.3223 1467.5621 1471.3161
#> Feb 2012 1512.0069 1512.3128 1514.1936 1513.9715 1513.7247 1513.9778 1513.6007
#> Mar 2012 1540.9017 1540.6293 1540.6214 1540.6133 1540.5410 1540.7922 1540.6171
#> Apr 2012 1498.7124 1498.4417 1498.1911 1498.1899 1498.3789 1498.7821 1498.6755
#> May 2012 1540.8102 1540.5751 1540.8542 1540.8425 1540.9507 1541.3197 1541.1885
#> Jun 2012 1662.7714 1663.5101 1663.5108 1663.4802 1663.5185 1663.9421 1662.2645
#> Jul 2012 1420.4591 1421.5418 1421.6301 1421.7581 1421.7717 1421.9187 1421.3637
#> Aug 2012 1560.5047 1561.0373 1561.3397 1561.2729 1561.4267 1561.8962 1562.6049
#> Sep 2012 1542.2540 1542.6381 1542.5860 1542.6718 1542.5341 1542.6600 1542.5453
#> Oct 2012 1499.5543 1499.1776 1499.3800 1499.3898 1499.4412 1499.7369 1499.6064
#> Nov 2012 1509.9670 1510.2267 1510.5360 1510.6021 1510.5939 1510.9205 1510.7138
#> Dec 2012 1543.4699 1541.0249 1540.9986 1541.0935 1540.8969 1541.1985 1540.7545
#> Jan 2013 1489.4113 1490.5440 1486.7083 1486.8110 1486.7104 1483.5455 1486.6441
#> Feb 2013 1553.4448 1554.7799 1558.3979 1557.4785 1556.8724 1557.3494 1556.3578
#> Mar 2013 1536.7265 1536.3958 1536.4221 1536.5720 1537.7958 1538.4229 1537.7681
#> Apr 2013 1493.4239 1493.2910 1492.9878 1493.0308 1492.6187 1491.9736 1491.6676
#> May 2013 1525.2798 1525.2978 1525.6069 1525.5071 1525.5450 1526.0406 1528.5887
#> Jun 2013 1601.1103 1602.1327 1602.0183 1601.9674 1602.0594 1602.5302 1599.8885
#> Jul 2013 1384.0191 1385.4276 1385.8302 1385.9358 1386.0215 1386.0627 1385.4164
#> Aug 2013 1548.3990 1549.7103 1550.0773 1549.9169 1549.9881 1550.4027 1551.6897
#> Sep 2013 1521.5069 1522.4463 1522.9389 1522.9961 1522.9195 1522.9838 1523.0028
#> Oct 2013 1514.8409 1514.5574 1514.8574 1514.8491 1514.8177 1515.0635 1514.8501
#> Nov 2013 1517.1431 1518.2104 1518.7204 1518.8753 1518.6696 1518.9493 1518.7164
#> Dec 2013 1514.4139 1508.9557 1509.4018 1509.6067 1509.3301 1509.6888 1509.1705
#> Jan 2014 1536.2024 1538.8234 1530.6716 1530.9583 1530.6674 1528.4895 1530.4352
#> Feb 2014 1493.4638 1495.9588 1501.7220 1500.7710 1499.7667 1500.4938 1498.8357
#> Mar 2014 1497.2993 1496.8161 1497.0619 1497.3053 1499.5933 1499.9700 1499.1213
#> Apr 2014 1522.8956 1523.0371 1522.6072 1522.6125 1522.3560 1520.2473 1519.2158
#> May 2014 1506.9096 1507.3010 1507.5617 1507.2676 1507.1035 1507.8674 1514.2954
#> Jun 2014 1515.4880 1516.6592 1516.9883 1516.8170 1517.1214 1517.7279 1514.1555
#> Jul 2014 1505.4206 1507.3699 1508.0078 1508.0285 1508.0906 1508.0368 1507.1655
#> Aug 2014 1465.5540 1467.5460 1468.1182 1467.8526 1467.8185 1468.1934 1469.8823
#> Sep 2014 1508.8787 1510.5811 1511.7344 1511.6912 1511.6251 1511.7019 1511.8104
#> Oct 2014 1519.0241 1518.9091 1519.4555 1519.3493 1519.2013 1519.4766 1519.1248
#> Nov 2014 1543.5741 1545.7607 1546.6939 1546.8925 1546.4202 1546.7400 1546.4369
#> Dec 2014 1519.9515 1511.0806 1512.1950 1512.4801 1512.0307 1512.5328 1511.8477
#> Jan 2015 1560.0116 1564.2305 1550.3867 1550.8291 1550.1581 1549.1365 1549.6915
#> Feb 2015 1486.8980 1490.3930 1497.6669 1497.5767 1496.2149 1497.2731 1494.9354
#> Mar 2015 1531.3818 1530.7886 1531.8110 1532.1120 1537.1039 1537.9569 1536.4153
#> Apr 2015 1558.4141 1559.0173 1558.5238 1558.4470 1557.4496 1552.2144 1550.4446
#> May 2015 1539.0725 1540.0107 1540.4780 1539.8917 1539.4417 1540.6608 1552.2249
#> Jun 2015 1524.1986 1525.4870 1526.5240 1526.1744 1526.6432 1527.5183 1522.9216
#> Jul 2015 1552.7639 1554.8643 1555.8586 1555.7120 1555.6653 1555.6125 1554.3574
#> Aug 2015 1560.0535 1562.6749 1563.6582 1563.1375 1563.0038 1563.5522 1565.7816
#> Sep 2015 1559.0914 1561.3808 1562.9721 1562.7419 1562.5920 1562.7528 1562.7225
#> Oct 2015 1612.5292 1612.7131 1613.3481 1613.0890 1612.7604 1613.0528 1612.3805
#> Nov 2015 1565.9586 1568.6738 1570.2442 1570.3743 1569.8778 1570.2967 1569.9756
#> Dec 2015 NaN 1597.3058 1598.7286 1599.0241 1598.3546 1598.9467 1598.0797
#> Jan 2016 NaN NaN 1602.5596 1603.0601 1602.0968 1602.1760 1601.4286
#> Feb 2016 NaN NaN NaN 1591.7379 1590.0099 1591.4408 1588.3186
#> Mar 2016 NaN NaN NaN NaN 1582.1340 1583.3840 1581.3406
#> Apr 2016 NaN NaN NaN NaN NaN 1608.1956 1605.9369
#> May 2016 NaN NaN NaN NaN NaN NaN 1567.8764
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 78 Series 79 Series 80 Series 81 Series 82 Series 83 Series 84
#> Apr 1982 489.7727 489.7490 489.7992 489.8121 489.8010 489.8149 489.8154
#> May 1982 478.2806 478.2799 478.2881 478.2877 478.3103 478.2901 478.2889
#> Jun 1982 486.9296 486.8381 486.9354 486.9433 486.9083 486.9419 486.9437
#> Jul 1982 485.1753 485.1662 485.1779 485.1803 485.1724 485.1801 485.1805
#> Aug 1982 490.9424 491.0607 490.9409 490.9350 490.9688 490.9369 490.9352
#> Sep 1982 497.3523 497.1897 497.3526 497.3613 497.3062 497.3580 497.3608
#> Oct 1982 480.7500 480.9219 480.7449 480.7346 480.7863 480.7371 480.7345
#> Nov 1982 485.9218 485.9080 485.9199 485.9204 485.9115 485.9197 485.9201
#> Dec 1982 488.7229 488.5549 488.7241 488.7338 488.6744 488.7304 488.7334
#> Jan 1983 444.4879 444.6893 444.4746 444.4528 444.5560 444.4573 444.4522
#> Feb 1983 504.3397 504.3724 504.3371 504.3353 504.3400 504.3353 504.3350
#> Mar 1983 513.2815 513.2069 513.3571 513.3976 513.3438 513.4042 513.4068
#> Apr 1983 560.6413 560.8092 560.5680 560.5282 560.5840 560.5221 560.5194
#> May 1983 481.8746 481.7004 481.8859 481.8958 481.8630 481.8953 481.8969
#> Jun 1983 507.4995 507.3876 507.5057 507.5148 507.4728 507.5131 507.5152
#> Jul 1983 499.0335 499.2274 499.0309 499.0207 499.0793 499.0239 499.0209
#> Aug 1983 510.3977 510.2973 510.4008 510.4078 510.3709 510.4060 510.4078
#> Sep 1983 516.5296 516.3481 516.5293 516.5385 516.4784 516.5348 516.5378
#> Oct 1983 514.8914 515.0915 514.8851 514.8728 514.9342 514.8757 514.8727
#> Nov 1983 528.9146 528.9172 528.9081 528.9063 528.9006 528.9051 528.9054
#> Dec 1983 531.3336 531.3520 531.3301 531.3283 531.3302 531.3279 531.3278
#> Jan 1984 481.5434 481.5774 481.5334 481.5216 481.5694 481.5232 481.5208
#> Feb 1984 534.4726 534.4374 534.4706 534.4722 534.4561 534.4710 534.4718
#> Mar 1984 555.0256 555.1466 555.0066 554.9972 555.0054 554.9952 554.9948
#> Apr 1984 521.3815 521.5541 521.4158 521.4220 521.4751 521.4297 521.4270
#> May 1984 560.8649 560.4605 560.8821 560.9055 560.8028 560.9015 560.9066
#> Jun 1984 553.0884 553.1575 553.0901 553.0883 553.1046 553.0895 553.0887
#> Jul 1984 574.8778 574.9033 574.8769 574.8759 574.8804 574.8760 574.8758
#> Aug 1984 564.9422 564.7828 564.9457 564.9557 564.9008 564.9528 564.9555
#> Sep 1984 570.3021 570.5145 570.2912 570.2756 570.3456 570.2784 570.2749
#> Oct 1984 578.7593 578.5846 578.7604 578.7702 578.7110 578.7667 578.7697
#> Nov 1984 579.0089 579.0291 578.9957 578.9905 578.9884 578.9887 578.9888
#> Dec 1984 571.5025 571.7373 571.4934 571.4778 571.5523 571.4812 571.4774
#> Jan 1985 594.2502 594.0596 594.2438 594.2456 594.2171 594.2430 594.2445
#> Feb 1985 610.7305 610.7417 610.7258 610.7237 610.7249 610.7231 610.7231
#> Mar 1985 604.6626 605.0331 604.6827 604.6784 604.7603 604.6860 604.6818
#> Apr 1985 629.7060 629.6535 629.7246 629.7354 629.7168 629.7367 629.7376
#> May 1985 662.2178 661.7923 662.2346 662.2589 662.1496 662.2544 662.2599
#> Jun 1985 623.4903 623.7888 623.4857 623.4691 623.5622 623.4741 623.4695
#> Jul 1985 633.8461 633.6259 633.8471 633.8586 633.7874 633.8544 633.8580
#> Aug 1985 666.9817 666.9774 666.9792 666.9782 666.9781 666.9778 666.9778
#> Sep 1985 609.4766 609.4724 609.4695 609.4659 609.4691 609.4652 609.4650
#> Oct 1985 660.9871 660.8029 660.9884 660.9982 660.9383 660.9948 660.9978
#> Nov 1985 651.4683 651.7686 651.4424 651.4182 651.5033 651.4200 651.4158
#> Dec 1985 636.8079 636.8413 636.8037 636.8005 636.8098 636.8006 636.8001
#> Jan 1986 659.1537 658.9345 659.1508 659.1577 659.1054 659.1542 659.1568
#> Feb 1986 652.4071 652.4127 652.4031 652.4016 652.4012 652.4010 652.4011
#> Mar 1986 611.0172 611.4066 611.1429 611.1829 611.2692 611.2044 611.1999
#> Apr 1986 658.2780 658.1636 658.1894 658.1570 658.1234 658.1435 658.1453
#> May 1986 727.0116 726.8659 727.0225 727.0301 727.0106 727.0303 727.0313
#> Jun 1986 603.8022 603.8778 603.8022 603.7983 603.8223 603.7997 603.7985
#> Jul 1986 703.5319 703.2620 703.5327 703.5459 703.4626 703.5410 703.5451
#> Aug 1986 676.4795 676.7036 676.4721 676.4565 676.5354 676.4602 676.4563
#> Sep 1986 711.6062 711.3426 711.6035 711.6141 711.5389 711.6091 711.6129
#> Oct 1986 690.3912 690.1841 690.3920 690.4019 690.3405 690.3983 690.4013
#> Nov 1986 655.5541 656.0800 655.5203 655.4804 655.6450 655.4860 655.4778
#> Dec 1986 714.6519 714.4066 714.6516 714.6638 714.5859 714.6591 714.6630
#> Jan 1987 720.5442 720.5676 720.5356 720.5303 720.5420 720.5299 720.5293
#> Feb 1987 708.6119 708.6251 708.6050 708.6028 708.5996 708.6018 708.6019
#> Mar 1987 702.1331 702.3441 702.0964 702.0778 702.0984 702.0743 702.0733
#> Apr 1987 707.7171 707.7208 707.8250 707.8794 707.8250 707.8901 707.8926
#> May 1987 710.0217 710.2634 710.0194 710.0054 710.0886 710.0102 710.0060
#> Jun 1987 715.0987 714.8293 715.1028 715.1078 715.0861 715.1070 715.1081
#> Jul 1987 774.0274 773.7161 774.0259 774.0416 773.9361 774.0350 774.0403
#> Aug 1987 704.5745 704.4747 704.5712 704.5575 704.6258 704.5609 704.5574
#> Sep 1987 721.5090 721.2977 721.5062 721.5157 721.4467 721.5112 721.5146
#> Oct 1987 744.4451 744.5106 744.4403 744.4354 744.4532 744.4359 744.4350
#> Nov 1987 683.2724 683.6086 683.2432 683.2163 683.3101 683.2182 683.2135
#> Dec 1987 751.5099 751.2569 751.5109 751.5254 751.4363 751.5201 751.5246
#> Jan 1988 753.8547 754.1957 753.8417 753.8214 753.9191 753.8257 753.8208
#> Feb 1988 738.2451 738.2236 738.2393 738.2426 738.2109 738.2401 738.2418
#> Mar 1988 757.7665 757.7440 757.8413 757.8850 757.8156 757.8908 757.8942
#> Apr 1988 787.8330 788.2403 787.8248 787.8195 787.8363 787.8196 787.8188
#> May 1988 744.7969 744.8790 744.7934 744.7919 744.7986 744.7920 744.7917
#> Jun 1988 757.8401 757.5757 757.8428 757.8398 757.8668 757.8417 757.8404
#> Jul 1988 756.0438 756.0854 756.0375 756.0238 756.0764 756.0257 756.0229
#> Aug 1988 750.4303 749.1864 750.4528 750.4728 750.3667 750.4680 750.4730
#> Sep 1988 777.1818 777.3356 777.1760 777.1829 777.1259 777.1788 777.1817
#> Oct 1988 772.5706 772.9646 772.5565 772.5346 772.6414 772.5394 772.5341
#> Nov 1988 785.5777 785.6666 785.5545 785.5456 785.5456 785.5428 785.5428
#> Dec 1988 809.8929 809.9249 809.8860 809.8855 809.8752 809.8842 809.8848
#> Jan 1989 753.4827 753.5962 753.4737 753.4691 753.4812 753.4689 753.4684
#> Feb 1989 768.4420 768.5225 768.4327 768.4322 768.4204 768.4306 768.4313
#> Mar 1989 793.3265 793.2894 793.4325 793.4917 793.4134 793.5011 793.5050
#> Apr 1989 786.2575 787.1168 786.2082 786.1720 786.2780 786.1722 786.1671
#> May 1989 770.5291 770.4386 770.5240 770.5354 770.4599 770.5305 770.5344
#> Jun 1989 815.7409 815.4539 815.7424 815.7316 815.8054 815.7362 815.7325
#> Jul 1989 799.0500 798.8972 799.0513 799.0400 799.0777 799.0413 799.0391
#> Aug 1989 835.7862 833.7558 835.8263 835.8493 835.7331 835.8451 835.8503
#> Sep 1989 821.8813 822.7381 821.8657 821.8524 821.9017 821.8534 821.8511
#> Oct 1989 784.2219 784.3959 784.2115 784.2067 784.2187 784.2064 784.2058
#> Nov 1989 827.7973 827.8963 827.7802 827.7773 827.7593 827.7744 827.7754
#> Dec 1989 818.5161 818.8810 818.5020 818.4855 818.5637 818.4887 818.4849
#> Jan 1990 804.8464 804.7413 804.8422 804.8542 804.7797 804.8496 804.8534
#> Feb 1990 813.0837 813.1766 813.0737 813.0747 813.0594 813.0731 813.0740
#> Mar 1990 854.6264 854.7901 854.5067 854.4577 854.4676 854.4434 854.4433
#> Apr 1990 792.2044 792.8296 792.3476 792.4075 792.4299 792.4279 792.4267
#> May 1990 820.9584 820.8629 820.9508 820.9629 820.8846 820.9578 820.9618
#> Jun 1990 863.3765 863.4957 863.3703 863.3375 863.5343 863.3485 863.3388
#> Jul 1990 793.0187 792.3634 793.0369 793.0452 792.9849 793.0423 793.0448
#> Aug 1990 876.9407 874.6611 877.0069 877.0304 876.9079 877.0273 877.0320
#> Sep 1990 811.3922 812.8557 811.3678 811.3345 811.4914 811.3409 811.3333
#> Oct 1990 804.4565 804.3373 804.4497 804.4627 804.3777 804.4572 804.4615
#> Nov 1990 832.9831 832.9984 832.9715 832.9759 832.9346 832.9725 832.9747
#> Dec 1990 823.3174 823.6946 823.2990 823.2817 823.3628 823.2848 823.2810
#> Jan 1991 821.9063 821.7983 821.8968 821.9083 821.8343 821.9033 821.9072
#> Feb 1991 833.1065 833.1526 833.0911 833.0929 833.0715 833.0905 833.0919
#> Mar 1991 813.1292 813.5974 813.2188 813.2446 813.3559 813.2639 813.2585
#> Apr 1991 833.0264 833.3599 832.9567 832.9417 832.8768 832.9295 832.9331
#> May 1991 828.0788 827.9177 828.0679 828.0823 827.9895 828.0762 828.0811
#> Jun 1991 777.2525 777.6258 777.2374 777.1907 777.4589 777.2051 777.1919
#> Jul 1991 883.4911 882.5621 883.5452 883.5679 883.4323 883.5623 883.5680
#> Aug 1991 901.3020 899.4100 901.3750 901.3811 901.3365 901.3827 901.3827
#> Sep 1991 803.3832 804.5327 803.3640 803.3484 803.4070 803.3497 803.3470
#> Oct 1991 866.6775 866.5143 866.6707 866.6870 866.5820 866.6804 866.6858
#> Nov 1991 856.4077 856.7285 856.3913 856.3794 856.4316 856.3811 856.3787
#> Dec 1991 842.4556 842.5624 842.4428 842.4426 842.4343 842.4412 842.4418
#> Jan 1992 872.6689 872.4522 872.6531 872.6697 872.5879 872.6646 872.6693
#> Feb 1992 886.8245 887.0763 886.8006 886.7893 886.8461 886.7910 886.7887
#> Mar 1992 831.4802 831.5916 831.3811 831.3438 831.3681 831.3339 831.3334
#> Apr 1992 878.1785 878.3748 878.2821 878.3435 878.2885 878.3550 878.3582
#> May 1992 888.8392 889.2302 888.8094 888.7885 888.8972 888.7927 888.7879
#> Jun 1992 844.8075 844.7179 844.7974 844.7882 844.8554 844.7917 844.7887
#> Jul 1992 874.3225 873.4585 874.4008 874.4199 874.3179 874.4174 874.4212
#> Aug 1992 856.5408 855.4903 856.6440 856.6312 856.6281 856.6361 856.6318
#> Sep 1992 881.2188 882.1386 881.2018 881.2028 881.1761 881.1997 881.2014
#> Oct 1992 910.3954 910.4662 910.3807 910.3810 910.3673 910.3793 910.3802
#> Nov 1992 885.3636 885.6483 885.3465 885.3351 885.3890 885.3371 885.3346
#> Dec 1992 865.1952 864.9870 865.1887 865.2060 865.1071 865.2001 865.2053
#> Jan 1993 909.7157 910.0378 909.6801 909.6607 909.7944 909.6672 909.6616
#> Feb 1993 878.6044 878.5640 878.5847 878.5881 878.5747 878.5863 878.5877
#> Mar 1993 888.7444 888.4929 888.6534 888.6395 888.5753 888.6259 888.6303
#> Apr 1993 884.6137 884.5944 884.6712 884.7194 884.6754 884.7265 884.7299
#> May 1993 915.8392 916.1606 915.7957 915.7767 915.8980 915.7810 915.7764
#> Jun 1993 911.4564 911.3707 911.4265 911.4246 911.4652 911.4255 911.4248
#> Jul 1993 858.3858 858.1666 858.4571 858.4514 858.5118 858.4573 858.4536
#> Aug 1993 857.1977 856.5271 857.3733 857.3780 857.1625 857.3725 857.3743
#> Sep 1993 908.4460 909.0484 908.4727 908.4721 908.4319 908.4744 908.4749
#> Oct 1993 899.7847 900.0923 899.7534 899.7374 899.8313 899.7407 899.7369
#> Nov 1993 883.8599 883.7622 883.8418 883.8512 883.8076 883.8476 883.8506
#> Dec 1993 895.0135 894.7749 895.0019 895.0193 894.9314 895.0136 895.0187
#> Jan 1994 887.9424 888.1533 887.9016 887.8855 888.0262 887.8924 887.8871
#> Feb 1994 907.9969 907.9445 907.9774 907.9798 907.9819 907.9790 907.9798
#> Mar 1994 932.6419 932.3689 932.7171 932.7748 932.7197 932.7836 932.7876
#> Apr 1994 917.7793 917.8423 917.6401 917.5915 917.6583 917.5803 917.5788
#> May 1994 911.4240 911.3757 911.3829 911.3837 911.4163 911.3837 911.3839
#> Jun 1994 943.4512 943.3733 943.3851 943.3931 943.4055 943.3883 943.3903
#> Jul 1994 868.9986 869.3173 869.0394 869.0124 869.2131 869.0252 869.0156
#> Aug 1994 929.6985 929.4075 929.9649 929.9885 929.5353 929.9723 929.9808
#> Sep 1994 954.0114 954.2765 954.0815 954.0798 954.0289 954.0887 954.0881
#> Oct 1994 954.1418 954.4181 954.0903 954.0734 954.1997 954.0781 954.0738
#> Nov 1994 911.0455 910.8663 911.0106 911.0216 910.9922 911.0183 911.0215
#> Dec 1994 956.6527 956.7143 956.6201 956.6169 956.6582 956.6175 956.6169
#> Jan 1995 887.3282 886.9692 887.3501 887.3518 887.3507 887.3535 887.3529
#> Feb 1995 933.9029 933.8913 933.8918 933.8925 933.9004 933.8906 933.8909
#> Mar 1995 956.5248 956.2131 956.4346 956.4188 956.3391 956.4016 956.4066
#> Apr 1995 973.0411 973.5520 973.0863 973.0907 973.2733 973.1072 973.0991
#> May 1995 927.3949 927.0685 927.3741 927.3937 927.3154 927.3866 927.3919
#> Jun 1995 945.0545 944.8392 944.9335 944.9503 944.9518 944.9356 944.9393
#> Jul 1995 964.1475 964.6326 964.0296 963.9949 964.3671 964.0302 964.0200
#> Aug 1995 1012.9982 1013.0168 1013.3319 1013.3577 1012.7879 1013.3340 1013.3441
#> Sep 1995 929.8765 930.2047 929.9950 929.9725 929.9999 929.9903 929.9833
#> Oct 1995 938.5252 938.5465 938.4768 938.4790 938.5137 938.4771 938.4777
#> Nov 1995 967.9566 967.7701 967.9135 967.9285 967.8934 967.9228 967.9269
#> Dec 1995 983.6486 984.1269 983.6003 983.5751 983.7494 983.5809 983.5743
#> Jan 1996 972.1898 970.9565 972.3712 972.3907 972.1636 972.3870 972.3910
#> Feb 1996 974.7729 974.7661 974.7649 974.7701 974.7595 974.7661 974.7676
#> Mar 1996 962.8127 963.2768 962.7629 962.7252 962.8654 962.7248 962.7186
#> Apr 1996 960.6677 960.5586 960.6973 960.7228 960.6733 960.7211 960.7242
#> May 1996 968.8736 968.6272 968.8707 968.8899 968.8031 968.8823 968.8875
#> Jun 1996 973.6720 974.2345 973.4607 973.4410 973.6855 973.4240 973.4166
#> Jul 1996 959.0122 958.5484 958.7474 958.7574 958.9890 958.7990 958.8032
#> Aug 1996 1035.4928 1035.7432 1035.8286 1035.8335 1035.3725 1035.8150 1035.8193
#> Sep 1996 907.0249 907.4209 907.1531 907.1303 907.1539 907.1475 907.1403
#> Oct 1996 949.5013 949.2921 949.4682 949.4883 949.4231 949.4809 949.4862
#> Nov 1996 982.3935 982.5980 982.3495 982.3452 982.4151 982.3445 982.3433
#> Dec 1996 965.2830 965.4900 965.2474 965.2425 965.3096 965.2426 965.2413
#> Jan 1997 976.8931 975.2248 977.2392 977.2547 976.8939 977.2499 977.2533
#> Feb 1997 1001.9578 1002.1392 1001.9544 1001.9529 1001.9811 1001.9481 1001.9477
#> Mar 1997 983.8004 984.3525 983.9484 983.9899 984.1244 984.0108 984.0045
#> Apr 1997 946.3658 946.3295 946.2336 946.1812 946.1347 946.1543 946.1574
#> May 1997 1014.3274 1014.5132 1014.3394 1014.3376 1014.3565 1014.3334 1014.3330
#> Jun 1997 892.7119 892.8987 892.4572 892.4674 892.5645 892.4239 892.4228
#> Jul 1997 1009.2331 1008.5365 1008.8072 1008.8144 1009.1762 1008.9098 1008.9162
#> Aug 1997 981.7481 982.2843 982.0160 981.9984 981.7348 981.9811 981.9782
#> Sep 1997 1014.3392 1014.4461 1014.5103 1014.5086 1014.3914 1014.5153 1014.5133
#> Oct 1997 996.4433 996.2954 996.4274 996.4474 996.3725 996.4357 996.4407
#> Nov 1997 1013.2630 1013.8750 1013.2277 1013.2023 1013.3789 1013.2043 1013.1972
#> Dec 1997 979.0914 979.0013 979.0767 979.0927 979.0436 979.0847 979.0890
#> Jan 1998 1068.9914 1067.3186 1069.4721 1069.4635 1069.1013 1069.4636 1069.4610
#> Feb 1998 989.6979 989.8952 989.6950 989.6936 989.7285 989.6896 989.6894
#> Mar 1998 987.7979 988.0661 987.7176 987.6758 987.7008 987.6594 987.6593
#> Apr 1998 1028.3186 1028.3408 1028.4362 1028.4842 1028.4382 1028.4893 1028.4922
#> May 1998 998.1605 998.7113 998.1800 998.1564 998.2883 998.1601 998.1541
#> Jun 1998 914.5034 914.3895 914.2065 914.2420 914.2052 914.1693 914.1729
#> Jul 1998 1071.3499 1070.5283 1070.9102 1070.9166 1071.2776 1071.0518 1071.0597
#> Aug 1998 1027.1060 1027.6479 1027.2871 1027.2687 1027.1229 1027.2516 1027.2471
#> Sep 1998 1015.4779 1015.4988 1015.6095 1015.6139 1015.4947 1015.6122 1015.6119
#> Oct 1998 1052.1792 1052.4003 1052.1802 1052.1774 1052.2071 1052.1708 1052.1695
#> Nov 1998 1024.2476 1024.4960 1024.2454 1024.2407 1024.2868 1024.2366 1024.2351
#> Dec 1998 1027.8852 1027.8353 1027.8687 1027.8841 1027.8473 1027.8745 1027.8786
#> Jan 1999 1103.1982 1101.9118 1103.7090 1103.6756 1103.4046 1103.6806 1103.6719
#> Feb 1999 1025.2581 1025.4543 1025.2684 1025.2672 1025.2929 1025.2621 1025.2620
#> Mar 1999 1042.4067 1042.4319 1042.5059 1042.5517 1042.4514 1042.5473 1042.5529
#> Apr 1999 1041.6531 1041.6135 1041.6213 1041.6015 1041.5346 1041.5837 1041.5877
#> May 1999 1042.3567 1042.9477 1042.3929 1042.3671 1042.5006 1042.3706 1042.3643
#> Jun 1999 966.0636 965.9159 965.7499 965.7907 965.7034 965.6976 965.7008
#> Jul 1999 1089.8364 1089.3631 1089.4376 1089.4167 1089.8984 1089.6036 1089.6051
#> Aug 1999 1056.7787 1056.9567 1056.8658 1056.8682 1056.7347 1056.8433 1056.8430
#> Sep 1999 1086.0036 1085.8928 1086.1090 1086.1217 1085.9695 1086.1069 1086.1090
#> Oct 1999 1084.5677 1085.1662 1084.5871 1084.5603 1084.6934 1084.5569 1084.5492
#> Nov 1999 1076.6440 1076.5374 1076.6805 1076.6960 1076.6071 1076.6834 1076.6873
#> Dec 1999 1074.1415 1074.0588 1074.1248 1074.1429 1074.0944 1074.1289 1074.1338
#> Jan 2000 1081.8376 1080.8628 1082.2780 1082.2442 1082.0370 1082.2490 1082.2403
#> Feb 2000 1072.2670 1072.3135 1072.2759 1072.2814 1072.2732 1072.2758 1072.2779
#> Mar 2000 1070.4387 1070.4946 1070.3638 1070.3391 1070.2455 1070.3136 1070.3196
#> Apr 2000 1101.1927 1101.9409 1101.2929 1101.2944 1101.4964 1101.3127 1101.3037
#> May 2000 1069.7947 1069.6174 1069.8325 1069.8508 1069.7554 1069.8434 1069.8492
#> Jun 2000 1256.6230 1256.4372 1256.2764 1256.3267 1256.1757 1256.2068 1256.2104
#> Jul 2000 897.6440 897.6036 897.4804 897.4476 897.7997 897.6086 897.6044
#> Aug 2000 1178.0327 1177.6458 1178.0543 1178.0835 1177.8960 1178.0535 1178.0598
#> Sep 2000 1157.5050 1157.6535 1157.5493 1157.5439 1157.5232 1157.5277 1157.5254
#> Oct 2000 1102.5915 1102.7479 1102.6276 1102.6228 1102.6223 1102.6135 1102.6120
#> Nov 2000 1093.6661 1093.6126 1093.7180 1093.7269 1093.6546 1093.7163 1093.7184
#> Dec 2000 1150.6589 1151.3669 1150.6106 1150.5797 1150.8037 1150.5769 1150.5686
#> Jan 2001 1115.3765 1114.1615 1115.6832 1115.6980 1115.3603 1115.6878 1115.6921
#> Feb 2001 1140.0700 1140.1522 1140.0817 1140.0813 1140.0946 1140.0760 1140.0764
#> Mar 2001 1214.0480 1214.4620 1213.9599 1213.9121 1213.9415 1213.8907 1213.8906
#> Apr 2001 1106.0096 1106.2803 1106.0934 1106.1157 1106.1890 1106.1244 1106.1222
#> May 2001 1147.2001 1147.0077 1147.2189 1147.2356 1147.1618 1147.2273 1147.2328
#> Jun 2001 1101.2921 1101.4468 1101.0627 1101.0785 1101.0520 1100.9945 1100.9916
#> Jul 2001 1148.5845 1148.1525 1148.5870 1148.5755 1148.7123 1148.7753 1148.7767
#> Aug 2001 1122.3390 1121.9482 1122.3330 1122.3596 1122.2062 1122.3305 1122.3364
#> Sep 2001 1123.1127 1123.5376 1123.1340 1123.1067 1123.2027 1123.0940 1123.0866
#> Oct 2001 1156.4555 1156.1552 1156.4865 1156.5067 1156.3842 1156.4892 1156.4944
#> Nov 2001 1190.5157 1190.4959 1190.5650 1190.5707 1190.5224 1190.5593 1190.5602
#> Dec 2001 1208.2434 1208.8894 1208.1867 1208.1568 1208.3837 1208.1512 1208.1428
#> Jan 2002 1173.9460 1173.3235 1174.0816 1174.0971 1173.9124 1174.0852 1174.0892
#> Feb 2002 1174.1582 1174.1484 1174.1682 1174.1695 1174.1743 1174.1643 1174.1645
#> Mar 2002 1184.2807 1185.0785 1184.4665 1184.5166 1184.6832 1184.5406 1184.5325
#> Apr 2002 1196.8188 1196.5965 1196.6023 1196.5213 1196.4718 1196.4829 1196.4870
#> May 2002 1223.5534 1223.2810 1223.5561 1223.5739 1223.5021 1223.5657 1223.5714
#> Jun 2002 1219.2949 1219.7851 1219.1291 1219.1189 1219.2135 1219.0757 1219.0668
#> Jul 2002 1120.8468 1120.0517 1121.0299 1121.0534 1120.8612 1121.1980 1121.2073
#> Aug 2002 1251.3069 1251.3243 1251.2759 1251.2755 1251.2877 1251.2595 1251.2599
#> Sep 2002 1164.8770 1164.8259 1164.8889 1164.8858 1164.8568 1164.8694 1164.8706
#> Oct 2002 1235.6441 1235.2930 1235.6550 1235.6762 1235.5647 1235.6612 1235.6677
#> Nov 2002 1329.9392 1330.4492 1329.9624 1329.9357 1330.0752 1329.9344 1329.9268
#> Dec 2002 1249.2752 1249.4800 1249.2085 1249.2035 1249.3081 1249.1902 1249.1883
#> Jan 2003 1250.0166 1249.6976 1250.0431 1250.0625 1249.9568 1250.0462 1250.0494
#> Feb 2003 1250.8489 1250.7982 1250.8693 1250.8728 1250.8558 1250.8614 1250.8590
#> Mar 2003 1299.2981 1300.0308 1299.1856 1299.1020 1299.2767 1299.0811 1299.0685
#> Apr 2003 1290.0281 1289.8533 1290.1198 1290.1642 1290.1040 1290.1550 1290.1534
#> May 2003 1296.8009 1296.8773 1296.7968 1296.7932 1296.8259 1296.7927 1296.7908
#> Jun 2003 1284.4867 1284.4201 1284.4070 1284.4236 1284.3688 1284.4113 1284.4075
#> Jul 2003 1233.4893 1232.5851 1233.6798 1233.7111 1233.4654 1233.8458 1233.8753
#> Aug 2003 1298.2168 1298.7950 1298.1842 1298.1519 1298.3434 1298.1447 1298.1343
#> Sep 2003 1304.6326 1304.1742 1304.6558 1304.6732 1304.5067 1304.6544 1304.6805
#> Oct 2003 1342.6930 1342.2895 1342.6968 1342.7237 1342.5950 1342.7055 1342.7097
#> Nov 2003 1371.7687 1372.8413 1371.7648 1371.7070 1372.0298 1371.7138 1371.6927
#> Dec 2003 1300.6117 1300.3284 1300.5633 1300.5878 1300.5243 1300.5670 1300.5675
#> Jan 2004 1351.2816 1351.4275 1351.2825 1351.2762 1351.3238 1351.2668 1351.2568
#> Feb 2004 1327.3328 1327.6390 1327.3314 1327.3152 1327.4155 1327.3101 1327.2967
#> Mar 2004 1314.2116 1313.9655 1314.1028 1314.0701 1313.9587 1314.0227 1314.0187
#> Apr 2004 1344.9774 1344.9464 1345.0835 1345.1229 1345.0968 1345.0791 1345.0674
#> May 2004 1372.4103 1372.8788 1372.3786 1372.3518 1372.5108 1372.3698 1372.3641
#> Jun 2004 1400.6057 1399.9333 1400.5763 1400.6271 1400.4044 1400.6499 1400.6578
#> Jul 2004 1369.2939 1368.7719 1369.4545 1369.4659 1369.3275 1369.5958 1369.6478
#> Aug 2004 1359.2756 1359.4491 1359.2674 1359.2596 1359.3186 1359.2534 1359.2535
#> Sep 2004 1434.6577 1434.2571 1434.6821 1434.6930 1434.5459 1434.6897 1434.7428
#> Oct 2004 1412.0643 1412.6562 1412.0475 1412.0152 1412.2074 1412.0147 1412.0036
#> Nov 2004 1358.1880 1358.2759 1358.1971 1358.1987 1358.2023 1358.1887 1358.1821
#> Dec 2004 1355.3587 1355.0140 1355.3315 1355.3582 1355.2599 1355.3356 1355.3304
#> Jan 2005 1429.7013 1430.3659 1429.6788 1429.6431 1429.8597 1429.6341 1429.5967
#> Feb 2005 1426.6857 1426.6435 1426.6750 1426.6821 1426.6718 1426.6597 1426.6238
#> Mar 2005 1433.3825 1433.1608 1433.5998 1433.7082 1433.6242 1433.6816 1433.6451
#> Apr 2005 1284.8044 1285.2875 1284.5978 1284.4759 1284.6259 1284.3616 1284.3136
#> May 2005 1359.9217 1359.7891 1359.8789 1359.8894 1359.8584 1359.9001 1359.8849
#> Jun 2005 1452.4969 1451.7868 1452.4502 1452.4982 1452.2948 1452.5753 1452.5881
#> Jul 2005 1349.0385 1349.1345 1349.2184 1349.1901 1349.2011 1349.3769 1349.6160
#> Aug 2005 1396.9924 1396.7021 1396.9826 1397.0045 1396.9149 1396.9854 1396.9758
#> Sep 2005 1392.4587 1392.1199 1392.4624 1392.4692 1392.3506 1392.4723 1392.5261
#> Oct 2005 1377.0391 1377.5959 1377.0126 1376.9839 1377.1693 1376.9779 1376.9463
#> Nov 2005 1370.8750 1370.8963 1370.8740 1370.8796 1370.8725 1370.8606 1370.8329
#> Dec 2005 1393.0793 1393.1545 1393.0794 1393.0797 1393.1020 1393.0488 1393.0113
#> Jan 2006 1348.3938 1348.5359 1348.3968 1348.3941 1348.4383 1348.3542 1348.3007
#> Feb 2006 1423.0413 1423.0395 1423.0329 1423.0397 1423.0453 1422.9976 1422.9358
#> Mar 2006 1391.0727 1390.8504 1390.9468 1390.8978 1390.8239 1390.7876 1390.7247
#> Apr 2006 1436.5314 1437.8143 1436.7017 1436.6855 1437.0642 1436.5534 1436.4578
#> May 2006 1360.0610 1359.3448 1359.9081 1359.9646 1359.8067 1360.0034 1359.9211
#> Jun 2006 1421.1617 1420.3749 1420.9904 1421.0222 1420.8278 1421.2693 1421.3196
#> Jul 2006 1461.1935 1461.4304 1461.4610 1461.4188 1461.4116 1461.6286 1462.0951
#> Aug 2006 1430.7030 1430.3958 1430.7269 1430.7502 1430.6474 1430.7112 1430.7347
#> Sep 2006 1346.3255 1346.5286 1346.3403 1346.3192 1346.3762 1346.3165 1346.3937
#> Oct 2006 1405.6566 1405.7303 1405.6737 1405.6754 1405.6963 1405.6429 1405.6565
#> Nov 2006 1451.2893 1451.1922 1451.3166 1451.3296 1451.2854 1451.2892 1451.2985
#> Dec 2006 1447.6664 1448.2541 1447.6856 1447.6567 1447.8379 1447.6154 1447.6011
#> Jan 2007 1407.6163 1407.3341 1407.5200 1407.5464 1407.4748 1407.4518 1406.8537
#> Feb 2007 1437.7539 1437.7798 1437.7596 1437.7658 1437.7783 1437.7067 1437.6751
#> Mar 2007 1540.5391 1540.8453 1540.4494 1540.3759 1540.4626 1540.2424 1540.1958
#> Apr 2007 1385.6717 1386.4054 1385.8597 1385.8685 1386.0635 1385.7079 1385.6507
#> May 2007 1465.9305 1465.0497 1465.6461 1465.7236 1465.5797 1465.8014 1465.6843
#> Jun 2007 1495.8768 1495.6496 1495.5669 1495.5392 1495.5550 1495.9687 1496.1031
#> Jul 2007 1480.6966 1480.5496 1481.0738 1481.0475 1480.8463 1481.2622 1481.9738
#> Aug 2007 1521.4059 1521.0153 1521.4617 1521.4897 1521.3491 1521.4179 1521.4758
#> Sep 2007 1515.8306 1516.7136 1515.8617 1515.8007 1516.0673 1515.7836 1515.8900
#> Oct 2007 1501.3494 1500.8883 1501.4106 1501.4461 1501.2889 1501.3792 1501.4333
#> Nov 2007 1515.2778 1514.9876 1515.3422 1515.3692 1515.2700 1515.3045 1515.3454
#> Dec 2007 1525.4960 1526.1063 1525.5492 1525.5224 1525.7128 1525.4636 1525.4756
#> Jan 2008 1536.6126 1536.3044 1536.3922 1536.4304 1536.3892 1536.2886 1535.0304
#> Feb 2008 1513.3124 1513.1210 1513.3409 1513.3718 1513.3271 1513.3032 1513.2768
#> Mar 2008 1504.3894 1505.1990 1504.6632 1504.7185 1504.9595 1504.6322 1504.5796
#> Apr 2008 1544.3962 1544.9124 1544.1845 1544.0307 1544.0883 1543.7889 1543.7527
#> May 2008 1533.3807 1532.8949 1532.9740 1533.0560 1533.1214 1533.1912 1532.9980
#> Jun 2008 1412.0948 1411.8611 1411.7260 1411.6959 1411.7350 1412.2222 1412.3866
#> Jul 2008 1574.4840 1574.0353 1575.0605 1574.9735 1574.5616 1575.1423 1576.3899
#> Aug 2008 1493.5590 1494.1453 1493.6391 1493.6267 1493.8050 1493.5545 1493.6303
#> Sep 2008 1530.8169 1530.5738 1530.9159 1530.9457 1530.8490 1530.8820 1531.0247
#> Oct 2008 1514.8005 1514.2800 1514.9014 1514.9539 1514.7768 1514.8667 1514.9701
#> Nov 2008 1531.8747 1532.6382 1531.9413 1531.9150 1532.1606 1531.8522 1531.9250
#> Dec 2008 1580.9343 1580.4030 1581.0206 1581.0705 1580.8976 1580.9875 1581.0661
#> Jan 2009 1592.9152 1593.2140 1592.5609 1592.5670 1592.7572 1592.4387 1590.1843
#> Feb 2009 1461.4169 1461.3024 1461.4112 1461.4434 1461.4479 1461.3878 1461.3750
#> Mar 2009 1610.8134 1610.8573 1610.7020 1610.6540 1610.6964 1610.5255 1610.4974
#> Apr 2009 1591.0462 1591.7612 1591.0170 1590.9709 1591.0305 1590.8206 1590.8139
#> May 2009 1643.8651 1643.8634 1643.4122 1643.4860 1643.7559 1643.6354 1643.4155
#> Jun 2009 1506.3764 1505.5756 1505.9519 1505.9259 1505.8313 1506.4509 1506.6716
#> Jul 2009 1549.8640 1549.9832 1550.8394 1550.6165 1550.1860 1550.7215 1552.7112
#> Aug 2009 1581.3973 1581.8533 1581.4717 1581.5599 1581.7158 1581.5187 1581.4728
#> Sep 2009 1550.6606 1550.3010 1550.7527 1550.8248 1550.7258 1550.7399 1550.8446
#> Oct 2009 1615.5210 1615.4281 1615.6125 1615.6743 1615.6643 1615.5800 1615.6733
#> Nov 2009 1579.9704 1580.0756 1580.0470 1580.0925 1580.1473 1580.0073 1580.0928
#> Dec 2009 1535.9831 1535.4774 1536.0532 1536.1289 1535.9800 1536.0433 1536.1253
#> Jan 2010 1614.2184 1615.1733 1613.9312 1613.8991 1614.2963 1613.9035 1610.8577
#> Feb 2010 1538.6886 1538.4835 1538.5124 1538.5370 1538.5369 1538.4823 1538.4729
#> Mar 2010 1532.1363 1531.5378 1532.1554 1532.2080 1532.0521 1532.1265 1532.1150
#> Apr 2010 1519.7641 1520.5423 1519.1852 1518.9203 1518.9713 1518.7836 1518.7982
#> May 2010 1536.9790 1536.9835 1536.4300 1536.4442 1536.7253 1536.5764 1536.3552
#> Jun 2010 1566.2372 1565.0890 1565.6599 1565.5339 1565.4569 1565.9652 1566.2370
#> Jul 2010 1571.4899 1573.0335 1573.2382 1572.7567 1572.5195 1572.7368 1575.5851
#> Aug 2010 1543.0626 1542.6238 1543.6957 1544.6010 1544.4787 1544.6415 1544.3321
#> Sep 2010 1575.3225 1574.7979 1575.3002 1575.3535 1575.2472 1575.2609 1575.3302
#> Oct 2010 1553.6802 1554.0450 1553.6422 1553.6395 1553.8130 1553.5667 1553.6421
#> Nov 2010 1541.9793 1541.4777 1541.9449 1541.9874 1541.8745 1541.9084 1542.0017
#> Dec 2010 1515.5374 1514.9819 1515.4762 1515.5122 1515.3739 1515.4484 1515.5376
#> Jan 2011 1545.3982 1546.4595 1545.1023 1544.9863 1545.4122 1545.1306 1541.5234
#> Feb 2011 1547.6789 1547.4929 1547.2841 1547.2472 1547.2478 1547.2043 1547.2513
#> Mar 2011 1510.2360 1509.6049 1509.8530 1509.7526 1509.5763 1509.6659 1509.7142
#> Apr 2011 1577.1342 1578.4676 1576.5465 1576.2804 1576.4784 1576.2221 1576.2899
#> May 2011 1502.3453 1502.0227 1501.8018 1501.7768 1501.8528 1501.8317 1501.7269
#> Jun 2011 1491.8091 1490.6587 1491.2369 1491.0408 1490.9826 1491.1812 1491.4984
#> Jul 2011 1536.7108 1539.5118 1539.0278 1538.4226 1538.4081 1538.3138 1541.4750
#> Aug 2011 1491.0320 1488.7973 1492.5315 1494.2104 1493.8496 1494.3402 1493.7700
#> Sep 2011 1490.3608 1489.8780 1490.1699 1490.2147 1490.1333 1490.1542 1490.1995
#> Oct 2011 1489.6421 1490.0758 1489.4171 1489.3871 1489.5993 1489.3638 1489.4121
#> Nov 2011 1500.6872 1500.2318 1500.4457 1500.4373 1500.3545 1500.4154 1500.4866
#> Dec 2011 1517.2963 1517.3075 1516.9909 1516.9554 1517.0074 1516.9560 1517.0210
#> Jan 2012 1471.8783 1472.4688 1471.5676 1471.4469 1471.6711 1471.7292 1468.5147
#> Feb 2012 1513.8460 1513.8850 1513.5702 1513.2628 1513.1559 1513.2814 1512.8675
#> Mar 2012 1540.8587 1540.7763 1540.2606 1540.1471 1540.1129 1540.0692 1540.1295
#> Apr 2012 1499.3170 1500.6214 1498.4824 1498.2400 1498.4063 1498.1546 1498.2429
#> May 2012 1541.2280 1540.5329 1540.6307 1540.6875 1540.5407 1540.6357 1540.6200
#> Jun 2012 1657.5186 1656.4226 1656.9470 1655.8617 1655.9848 1655.4854 1655.9284
#> Jul 2012 1422.0402 1424.4690 1424.5141 1424.1068 1423.9753 1423.9199 1426.9306
#> Aug 2012 1563.7142 1560.0454 1566.2815 1568.9900 1568.5554 1569.2031 1568.4350
#> Sep 2012 1542.7194 1543.4366 1542.4540 1542.6236 1542.9511 1542.6515 1542.6637
#> Oct 2012 1499.6013 1499.1271 1499.3875 1499.6123 1499.5516 1499.6831 1499.7292
#> Nov 2012 1510.8673 1510.5360 1510.6128 1510.7702 1510.7487 1510.8873 1510.9391
#> Dec 2012 1541.2375 1541.9655 1540.8921 1540.8933 1541.1765 1541.0631 1541.0696
#> Jan 2013 1487.4723 1487.6694 1487.1046 1486.9331 1486.9660 1487.3938 1484.7074
#> Feb 2013 1556.9533 1557.7456 1556.5968 1555.7339 1555.6474 1555.9520 1554.9815
#> Mar 2013 1538.5854 1539.2395 1537.6273 1537.0706 1537.1872 1537.1660 1537.1620
#> Apr 2013 1492.4993 1492.9310 1490.7240 1489.7436 1489.5486 1489.5892 1489.6091
#> May 2013 1529.2376 1528.6538 1527.7730 1527.0822 1526.6463 1526.6510 1526.6309
#> Jun 2013 1591.1284 1590.2319 1589.6655 1588.4366 1589.0580 1587.2877 1588.4071
#> Jul 2013 1386.6560 1388.4680 1391.4623 1391.2038 1390.6554 1390.5643 1393.0578
#> Aug 2013 1553.5949 1548.6163 1558.4180 1563.3420 1562.7399 1562.9372 1562.1167
#> Sep 2013 1523.0648 1523.3042 1521.0484 1523.9494 1523.6990 1523.2164 1523.2122
#> Oct 2013 1514.9492 1515.6083 1514.8534 1513.9126 1516.1307 1515.8129 1515.8493
#> Nov 2013 1519.0923 1519.6496 1519.5600 1519.0154 1518.5712 1521.5164 1521.5673
#> Dec 2013 1509.8427 1510.4149 1509.4439 1509.4359 1509.3158 1508.6990 1508.5049
#> Jan 2014 1531.7184 1532.1215 1531.1702 1530.5692 1530.7718 1531.0587 1529.2714
#> Feb 2014 1499.8767 1501.0034 1499.3426 1497.7175 1497.5181 1498.2541 1496.8325
#> Mar 2014 1500.3871 1500.7168 1498.0129 1496.7497 1496.7270 1496.6781 1496.6134
#> Apr 2014 1520.8675 1520.5949 1518.1924 1516.7634 1516.4234 1516.5105 1516.4574
#> May 2014 1515.8710 1515.1070 1512.6288 1511.2054 1510.6958 1510.4383 1510.3473
#> Jun 2014 1500.4514 1497.7326 1497.1859 1495.9880 1496.6293 1494.1840 1495.9483
#> Jul 2014 1509.4480 1513.5051 1519.4319 1519.4765 1518.4899 1518.0067 1520.0274
#> Aug 2014 1472.4002 1466.8797 1480.8234 1487.8401 1486.9520 1486.4757 1485.8926
#> Sep 2014 1511.9018 1511.6430 1507.6389 1514.1107 1513.1534 1512.2409 1512.3648
#> Oct 2014 1519.4734 1521.3037 1519.4507 1516.9750 1521.8164 1520.8706 1521.0655
#> Nov 2014 1547.2189 1548.5902 1548.5259 1547.0230 1546.0392 1553.3068 1553.5880
#> Dec 2014 1512.7407 1513.0591 1512.1406 1512.0495 1511.5371 1510.1739 1509.1236
#> Jan 2015 1551.2480 1552.2073 1550.1907 1548.9743 1549.6359 1549.3701 1548.4466
#> Feb 2015 1496.3248 1497.4895 1495.3017 1492.9116 1492.6366 1493.7997 1492.3536
#> Mar 2015 1538.2064 1537.7340 1534.7568 1532.8459 1532.5171 1532.6335 1532.6014
#> Apr 2015 1552.5606 1551.3195 1548.1431 1545.8096 1545.3145 1545.3493 1545.3162
#> May 2015 1554.6652 1553.4520 1549.1638 1546.7135 1546.0698 1545.5464 1545.4792
#> Jun 2015 1505.0688 1500.7076 1499.4564 1498.9805 1499.7700 1496.6098 1499.2118
#> Jul 2015 1557.4567 1564.4829 1573.7713 1574.1103 1572.6106 1571.6412 1572.7427
#> Aug 2015 1569.0300 1561.3801 1583.2640 1593.0705 1591.5578 1590.2655 1590.0821
#> Sep 2015 1562.6386 1562.4399 1555.3222 1566.5080 1564.8442 1563.1093 1563.4422
#> Oct 2015 1612.9527 1616.8409 1612.8397 1608.0437 1616.2346 1614.2271 1614.6892
#> Nov 2015 1570.9235 1571.9509 1573.0843 1570.2700 1568.2095 1581.2552 1581.9100
#> Dec 2015 1599.1955 1599.8209 1598.0534 1597.7111 1596.9046 1594.2316 1591.8809
#> Jan 2016 1603.2441 1604.6561 1601.4534 1599.5467 1600.7720 1599.7719 1599.8254
#> Feb 2016 1590.1299 1591.0641 1588.7459 1585.4696 1585.0401 1586.7687 1585.1477
#> Mar 2016 1583.6884 1582.0725 1579.3443 1577.2169 1576.5920 1576.7209 1576.7905
#> Apr 2016 1608.7076 1607.0613 1602.5354 1599.7877 1599.5328 1599.1320 1599.2093
#> May 2016 1571.0484 1567.9294 1563.7957 1561.0642 1560.1974 1559.7134 1559.7705
#> Jun 2016 1620.8695 1614.7193 1612.8467 1612.4199 1613.4443 1609.4108 1612.7279
#> Jul 2016 NaN 1523.8437 1532.7602 1533.3864 1532.0938 1530.2854 1531.0450
#> Aug 2016 NaN NaN 1520.4309 1530.6921 1528.6537 1526.9904 1527.4574
#> Sep 2016 NaN NaN NaN 1562.6172 1560.6576 1558.2031 1558.9234
#> Oct 2016 NaN NaN NaN NaN 1551.2111 1548.4690 1549.3303
#> Nov 2016 NaN NaN NaN NaN NaN 1528.4091 1529.5703
#> Dec 2016 NaN NaN NaN NaN NaN NaN 1567.2535
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 85 Series 86 Series 87 Series 88 Series 89 Series 90 Series 91
#> Apr 1982 489.8227 489.8226 489.8555 489.7182 489.7108 489.7055 489.6916
#> May 1982 478.2754 478.2754 478.2927 478.1751 478.1801 478.1804 478.1908
#> Jun 1982 486.9648 486.9648 486.9618 487.0027 486.9922 486.9899 486.9687
#> Jul 1982 485.1853 485.1853 485.1864 485.1926 485.1900 485.1894 485.1842
#> Aug 1982 490.9148 490.9148 490.9233 490.8717 490.8811 490.8830 490.9022
#> Sep 1982 497.3940 497.3939 497.3773 497.4924 497.4774 497.4749 497.4442
#> Oct 1982 480.7033 480.7033 480.7124 480.6482 480.6631 480.6663 480.6966
#> Nov 1982 485.9255 485.9255 485.9200 485.9589 485.9568 485.9567 485.9523
#> Dec 1982 488.7692 488.7691 488.7522 488.8745 488.8582 488.8553 488.8220
#> Jan 1983 444.3897 444.3899 444.4037 444.2866 444.3168 444.3234 444.3847
#> Feb 1983 504.3321 504.3322 504.3301 504.3461 504.3478 504.3484 504.3518
#> Mar 1983 513.4408 513.4406 513.5274 513.2101 513.1831 513.1706 513.1178
#> Apr 1983 560.4843 560.4845 560.4014 560.6454 560.6723 560.6834 560.7366
#> May 1983 481.9168 481.9167 481.9221 481.8906 481.8800 481.8771 481.8556
#> Jun 1983 507.5406 507.5406 507.5359 507.5863 507.5739 507.5711 507.5459
#> Jul 1983 498.9855 498.9856 499.0003 498.9030 498.9193 498.9225 498.9559
#> Aug 1983 510.4301 510.4300 510.4227 510.4845 510.4740 510.4720 510.4506
#> Sep 1983 516.5741 516.5740 516.5549 516.6818 516.6656 516.6629 516.6297
#> Oct 1983 514.8356 514.8357 514.8461 514.7677 514.7854 514.7892 514.8252
#> Nov 1983 528.9088 528.9088 528.8982 528.9726 528.9720 528.9727 528.9713
#> Dec 1983 531.3266 531.3266 531.3223 531.3477 531.3489 531.3495 531.3517
#> Jan 1984 481.4919 481.4920 481.4930 481.4666 481.4812 481.4847 481.5143
#> Feb 1984 534.4815 534.4815 534.4738 534.5274 534.5233 534.5229 534.5145
#> Mar 1984 554.9896 554.9896 554.9657 554.9952 555.0003 555.0033 555.0133
#> Apr 1984 521.3957 521.3957 521.4593 521.1677 521.1765 521.1734 521.1929
#> May 1984 560.9688 560.9686 560.9603 561.0272 560.9966 560.9897 560.9276
#> Jun 1984 553.0789 553.0789 553.0864 553.0441 553.0483 553.0489 553.0574
#> Jul 1984 574.8730 574.8730 574.8733 574.8688 574.8702 574.8706 574.8734
#> Aug 1984 564.9887 564.9886 564.9762 565.0714 565.0559 565.0529 565.0214
#> Sep 1984 570.2325 570.2326 570.2395 570.1661 570.1869 570.1918 570.2341
#> Oct 1984 578.8053 578.8052 578.7884 578.9062 578.8900 578.8871 578.8539
#> Nov 1984 578.9899 578.9899 578.9713 579.1003 579.1017 579.1035 579.1060
#> Dec 1984 571.4324 571.4325 571.4431 571.3533 571.3750 571.3798 571.4240
#> Jan 1985 594.2615 594.2615 594.2439 594.3459 594.3392 594.3387 594.3248
#> Feb 1985 610.7223 610.7223 610.7163 610.7489 610.7500 610.7508 610.7528
#> Mar 1985 604.6330 604.6330 604.6857 604.3519 604.3708 604.3719 604.4112
#> Apr 1985 629.7492 629.7492 629.7690 629.6994 629.6912 629.6869 629.6712
#> May 1985 662.3260 662.3258 662.3150 662.3950 662.3627 662.3556 662.2899
#> Jun 1985 623.4133 623.4134 623.4359 623.2735 623.2995 623.3046 623.3577
#> Jul 1985 633.9008 633.9007 633.8799 634.0075 633.9881 633.9847 633.9450
#> Aug 1985 666.9778 666.9778 666.9743 666.9913 666.9918 666.9922 666.9930
#> Sep 1985 609.4630 609.4630 609.4542 609.4892 609.4913 609.4925 609.4966
#> Oct 1985 661.0339 661.0338 661.0169 661.1326 661.1162 661.1132 661.0796
#> Nov 1985 651.3640 651.3642 651.3554 651.4129 651.4400 651.4475 651.5021
#> Dec 1985 636.7945 636.7945 636.7918 636.8010 636.8042 636.8052 636.8115
#> Jan 1986 659.1883 659.1883 659.1681 659.2946 659.2808 659.2787 659.2505
#> Feb 1986 652.4012 652.4012 652.3958 652.4249 652.4254 652.4259 652.4269
#> Mar 1986 611.1505 611.1504 611.3496 610.4692 610.4721 610.4595 610.4695
#> Apr 1986 658.1638 658.1639 658.0319 658.5424 658.5476 658.5571 658.5652
#> May 1986 727.0432 727.0431 727.0519 726.9887 726.9818 726.9796 726.9656
#> Jun 1986 603.7840 603.7840 603.7911 603.7356 603.7422 603.7434 603.7569
#> Jul 1986 703.5953 703.5951 703.5700 703.7087 703.6861 703.6822 703.6359
#> Aug 1986 676.4085 676.4086 676.4226 676.3038 676.3266 676.3314 676.3776
#> Sep 1986 711.6581 711.6580 711.6308 711.7897 711.7698 711.7668 711.7261
#> Oct 1986 690.4383 690.4382 690.4202 690.5376 690.5208 690.5179 690.4836
#> Nov 1986 655.3780 655.3783 655.3836 655.3319 655.3818 655.3940 655.4951
#> Dec 1986 714.7100 714.7099 714.6856 714.8497 714.8286 714.8249 714.7816
#> Jan 1987 720.5221 720.5222 720.5145 720.5509 720.5554 720.5570 720.5660
#> Feb 1987 708.6038 708.6038 708.5940 708.6556 708.6557 708.6564 708.6566
#> Mar 1987 702.0603 702.0605 702.0167 702.0966 702.1078 702.1135 702.1355
#> Apr 1987 707.9277 707.9274 708.0584 707.6051 707.5728 707.5556 707.4930
#> May 1987 709.9559 709.9560 709.9789 709.8096 709.8325 709.8368 709.8838
#> Jun 1987 715.1213 715.1213 715.1196 715.1037 715.0972 715.0958 715.0826
#> Jul 1987 774.1037 774.1036 774.0684 774.2647 774.2365 774.2318 774.1740
#> Aug 1987 704.5153 704.5154 704.5281 704.3318 704.3517 704.3559 704.3965
#> Sep 1987 721.5561 721.5560 721.5305 721.6764 721.6582 721.6555 721.6183
#> Oct 1987 744.4241 744.4241 744.4230 744.4113 744.4170 744.4185 744.4300
#> Nov 1987 683.1565 683.1567 683.1462 683.2095 683.2395 683.2478 683.3083
#> Dec 1987 751.5784 751.5782 751.5524 751.7327 751.7083 751.7039 751.6540
#> Jan 1988 753.7619 753.7620 753.7758 753.6768 753.7052 753.7114 753.7691
#> Feb 1988 738.2612 738.2612 738.2456 738.3824 738.3743 738.3732 738.3564
#> Mar 1988 757.9382 757.9380 758.0217 757.7769 757.7451 757.7314 757.6690
#> Apr 1988 787.8092 787.8092 787.8044 787.8410 787.8462 787.8477 787.8582
#> May 1988 744.7881 744.7881 744.7880 744.8414 744.8433 744.8437 744.8474
#> Jun 1988 757.8246 757.8246 757.8363 757.7061 757.7129 757.7140 757.7280
#> Jul 1988 755.9890 755.9891 755.9905 755.8513 755.8687 755.8730 755.9082
#> Aug 1988 750.5334 750.5333 750.5160 750.3223 750.2934 750.2872 750.2283
#> Sep 1988 777.2166 777.2165 777.1917 777.2290 777.2144 777.2124 777.1823
#> Oct 1988 772.4699 772.4701 772.4861 772.4014 772.4322 772.4389 772.5016
#> Nov 1988 785.5428 785.5429 785.5136 785.7605 785.7636 785.7664 785.7721
#> Dec 1988 809.8914 809.8913 809.8812 809.9917 809.9895 809.9896 809.9850
#> Jan 1989 753.4616 753.4616 753.4561 753.5419 753.5460 753.5473 753.5554
#> Feb 1989 768.4392 768.4392 768.4270 768.5830 768.5803 768.5804 768.5747
#> Mar 1989 793.5554 793.5551 793.6795 793.3676 793.3279 793.3095 793.2319
#> Apr 1989 786.1033 786.1035 786.0712 786.1622 786.1978 786.2087 786.2803
#> May 1989 770.5807 770.5806 770.5549 770.8394 770.8187 770.8152 770.7727
#> Jun 1989 815.6889 815.6890 815.7133 815.4595 815.4791 815.4827 815.5230
#> Jul 1989 799.0119 799.0120 799.0119 798.8069 798.8214 798.8252 798.8544
#> Aug 1989 835.9133 835.9131 835.9023 835.3829 835.3517 835.3445 835.2812
#> Sep 1989 821.8224 821.8225 821.8183 821.5870 821.6026 821.6069 821.6383
#> Oct 1989 784.1991 784.1991 784.1928 784.3283 784.3324 784.3339 784.3420
#> Nov 1989 827.7868 827.7868 827.7623 828.0320 828.0288 828.0297 828.0228
#> Dec 1989 818.4384 818.4386 818.4483 818.4653 818.4878 818.4928 818.5385
#> Jan 1990 804.8995 804.8994 804.8761 805.1485 805.1276 805.1239 805.0811
#> Feb 1990 813.0849 813.0849 813.0737 813.2780 813.2736 813.2732 813.2642
#> Mar 1990 854.4372 854.4375 854.2810 855.0253 855.0452 855.0604 855.0975
#> Apr 1990 792.4182 792.4179 792.6267 791.9310 791.9119 791.8929 791.8585
#> May 1990 821.0108 821.0107 820.9837 821.3396 821.3176 821.3138 821.2687
#> Jun 1990 863.2216 863.2219 863.2746 862.8061 862.8600 862.8703 862.9805
#> Jul 1990 793.0752 793.0751 793.0610 792.8978 792.8849 792.8828 792.8564
#> Aug 1990 877.0887 877.0886 877.0876 876.2428 876.2135 876.2062 876.1469
#> Sep 1990 811.2405 811.2408 811.2587 810.7558 810.8017 810.8121 810.9052
#> Oct 1990 804.5142 804.5140 804.4850 804.8464 804.8228 804.8189 804.7705
#> Nov 1990 833.0012 833.0012 832.9797 833.2818 833.2706 833.2692 833.2461
#> Dec 1990 823.2339 823.2340 823.2420 823.3225 823.3454 823.3506 823.3972
#> Jan 1991 821.9545 821.9543 821.9282 822.2683 822.2471 822.2435 822.2001
#> Feb 1991 833.1080 833.1080 833.0924 833.3652 833.3586 833.3580 833.3443
#> Mar 1991 813.1968 813.1968 813.3616 812.8438 812.8561 812.8478 812.8763
#> Apr 1991 832.9743 832.9744 832.8681 833.4339 833.4243 833.4288 833.4072
#> May 1991 828.1399 828.1397 828.1074 828.5085 828.4821 828.4776 828.4235
#> Jun 1991 777.0320 777.0324 777.0981 776.5509 776.6250 776.6394 776.7907
#> Jul 1991 883.6372 883.6370 883.6171 883.3358 883.3043 883.2980 883.2342
#> Aug 1991 901.3839 901.3838 901.4019 900.3248 900.3216 900.3195 900.3134
#> Sep 1991 803.3134 803.3135 803.3090 802.9851 803.0034 803.0084 803.0454
#> Oct 1991 866.7503 866.7502 866.7159 867.1367 867.1076 867.1026 867.0429
#> Nov 1991 856.3489 856.3490 856.3512 856.4999 856.5147 856.5183 856.5482
#> Dec 1991 842.4493 842.4493 842.4388 842.6722 842.6694 842.6694 842.6637
#> Jan 1992 872.7269 872.7268 872.7035 873.0919 873.0652 873.0600 873.0053
#> Feb 1992 886.7601 886.7602 886.7627 886.9272 886.9413 886.9446 886.9731
#> Mar 1992 831.3240 831.3242 831.2096 831.8138 831.8305 831.8420 831.8735
#> Apr 1992 878.4010 878.4006 878.5443 878.2241 878.1861 878.1668 878.0929
#> May 1992 888.7288 888.7289 888.7417 888.8457 888.8741 888.8803 888.9380
#> Jun 1992 844.7535 844.7535 844.7718 844.6129 844.6290 844.6320 844.6650
#> Jul 1992 874.4672 874.4670 874.4671 873.9232 873.9016 873.8965 873.8532
#> Aug 1992 856.5792 856.5793 856.6078 855.4549 855.4776 855.4814 855.5283
#> Sep 1992 881.2214 881.2214 881.1983 881.0051 880.9983 880.9982 880.9839
#> Oct 1992 910.3910 910.3909 910.3779 910.6781 910.6739 910.6737 910.6648
#> Nov 1992 885.3046 885.3047 885.3089 885.4759 885.4905 885.4939 885.5234
#> Dec 1992 865.2681 865.2679 865.2394 865.6298 865.6010 865.5956 865.5366
#> Jan 1993 909.5946 909.5948 909.6243 909.6892 909.7199 909.7257 909.7882
#> Feb 1993 878.6037 878.6037 878.5934 878.8387 878.8315 878.8304 878.8157
#> Mar 1993 888.6809 888.6809 888.5606 889.2320 889.2188 889.2232 889.1942
#> Apr 1993 884.7736 884.7733 884.8725 884.6941 884.6606 884.6455 884.5798
#> May 1993 915.7196 915.7198 915.7354 915.7788 915.8056 915.8113 915.8659
#> Jun 1993 911.4165 911.4166 911.4219 911.3994 911.4031 911.4038 911.4114
#> Jul 1993 858.4092 858.4093 858.4507 857.5776 857.5972 857.5997 857.6408
#> Aug 1993 857.3937 857.3936 857.3768 856.6619 856.6518 856.6505 856.6313
#> Sep 1993 908.4842 908.4842 908.4758 908.3669 908.3652 908.3654 908.3602
#> Oct 1993 899.6902 899.6903 899.7016 899.7862 899.8085 899.8132 899.8584
#> Nov 1993 883.8856 883.8856 883.8688 884.1562 884.1401 884.1371 884.1041
#> Dec 1993 895.0792 895.0790 895.0537 895.3947 895.3667 895.3613 895.3040
#> Jan 1994 887.8230 887.8232 887.8597 887.8753 887.9040 887.9088 887.9671
#> Feb 1994 907.9895 907.9895 907.9850 908.1475 908.1432 908.1424 908.1333
#> Mar 1994 932.8402 932.8399 932.9549 932.6996 932.6599 932.6419 932.5637
#> Apr 1994 917.5574 917.5577 917.4276 917.9931 918.0184 918.0335 918.0818
#> May 1994 911.3876 911.3876 911.3861 911.5060 911.5044 911.5041 911.5005
#> Jun 1994 943.4109 943.4107 943.4022 943.5381 943.5262 943.5238 943.5025
#> Jul 1994 868.9009 868.9011 868.9700 867.9949 868.0472 868.0559 868.1632
#> Aug 1994 930.0775 930.0772 930.0127 929.6916 929.6462 929.6394 929.5488
#> Sep 1994 954.0882 954.0883 954.0958 954.0674 954.0702 954.0704 954.0730
#> Oct 1994 954.0224 954.0226 954.0387 954.0543 954.0787 954.0837 954.1328
#> Nov 1994 911.0607 911.0606 911.0442 911.2920 911.2740 911.2706 911.2334
#> Dec 1994 956.6101 956.6101 956.6104 956.7330 956.7368 956.7376 956.7446
#> Jan 1995 887.3457 887.3457 887.3630 887.4238 887.4269 887.4265 887.4325
#> Feb 1995 933.8922 933.8922 933.8914 933.9777 933.9768 933.9766 933.9748
#> Mar 1995 956.4626 956.4626 956.3302 956.9515 956.9371 956.9422 956.9105
#> Apr 1995 973.0030 973.0031 973.1472 972.5298 972.5620 972.5604 972.6290
#> May 1995 927.4544 927.4543 927.4316 927.6410 927.6113 927.6053 927.5450
#> Jun 1995 944.9730 944.9726 944.9551 945.1959 945.1717 945.1668 945.1282
#> Jul 1995 963.9210 963.9216 963.9807 963.2208 963.2763 963.2865 963.3893
#> Aug 1995 1013.4550 1013.4546 1013.3700 1013.3109 1013.2578 1013.2504 1013.1459
#> Sep 1995 929.9089 929.9092 929.9527 929.8388 929.8759 929.8822 929.9541
#> Oct 1995 938.4840 938.4840 938.4813 938.5716 938.5681 938.5673 938.5601
#> Nov 1995 967.9756 967.9754 967.9571 968.1644 968.1413 968.1366 968.0891
#> Dec 1995 983.4930 983.4933 983.5220 983.3829 983.4210 983.4286 983.5053
#> Jan 1996 972.4391 972.4390 972.4394 972.4558 972.4357 972.4306 972.3900
#> Feb 1996 974.7822 974.7822 974.7778 974.8504 974.8432 974.8416 974.8262
#> Mar 1996 962.6397 962.6400 962.6223 962.6161 962.6578 962.6693 962.7528
#> Apr 1996 960.7602 960.7601 960.7921 960.7462 960.7238 960.7160 960.6712
#> May 1996 968.9470 968.9468 968.9262 969.1071 969.0785 969.0727 969.0146
#> Jun 1996 973.3024 973.3018 973.3311 973.2618 973.2958 973.3025 973.3972
#> Jul 1996 958.9006 958.9010 958.8766 958.9766 958.9515 958.9472 958.8742
#> Aug 1996 1035.8595 1035.8592 1035.8011 1035.6041 1035.5834 1035.5823 1035.5442
#> Sep 1996 907.0631 907.0634 907.1084 906.9630 907.0008 907.0073 907.0811
#> Oct 1996 949.5484 949.5482 949.5265 949.7436 949.7133 949.7072 949.6457
#> Nov 1996 982.3259 982.3260 982.3334 982.3411 982.3481 982.3493 982.3635
#> Dec 1996 965.2243 965.2244 965.2323 965.2355 965.2433 965.2447 965.2592
#> Jan 1997 977.2916 977.2916 977.2923 977.1121 977.0998 977.0966 977.0722
#> Feb 1997 1001.9369 1001.9370 1001.9443 1001.9206 1001.9250 1001.9255 1001.9324
#> Mar 1997 983.9293 983.9293 984.1679 983.1838 983.1958 983.1827 983.2091
#> Apr 1997 946.1830 946.1834 945.9748 946.7858 946.7963 946.8128 946.8269
#> May 1997 1014.3228 1014.3229 1014.3309 1014.2827 1014.2878 1014.2884 1014.2955
#> Jun 1997 892.3655 892.3639 892.3599 892.4975 892.4880 892.4864 892.5157
#> Jul 1997 1009.0986 1009.0996 1009.0422 1009.5991 1009.5604 1009.5549 1009.4288
#> Aug 1997 981.9237 981.9235 981.9056 981.5911 981.6090 981.6148 981.6613
#> Sep 1997 1014.4931 1014.4931 1014.5192 1014.4996 1014.5076 1014.5078 1014.5238
#> Oct 1997 996.4947 996.4945 996.4770 996.6379 996.6094 996.6034 996.5470
#> Nov 1997 1013.1051 1013.1054 1013.1419 1012.9152 1012.9560 1012.9637 1013.0470
#> Dec 1997 979.1366 979.1366 979.1239 979.2641 979.2415 979.2366 979.1878
#> Jan 1998 1069.4258 1069.4261 1069.4511 1068.9290 1068.9552 1068.9598 1069.0124
#> Feb 1998 989.6823 989.6825 989.6912 989.6559 989.6603 989.6607 989.6643
#> Mar 1998 987.6490 987.6495 987.5305 987.9619 987.9826 987.9956 988.0282
#> Apr 1998 1028.5267 1028.5267 1028.6457 1028.2352 1028.2082 1028.1933 1028.1328
#> May 1998 998.0787 998.0792 998.1144 997.8677 997.9062 997.9132 997.9832
#> Jun 1998 914.1470 914.1441 914.1129 914.4036 914.3583 914.3498 914.3355
#> Jul 1998 1071.3036 1071.3050 1071.2281 1072.0722 1072.0234 1072.0168 1071.8524
#> Aug 1998 1027.1712 1027.1709 1027.1717 1026.8621 1026.8862 1026.8923 1026.9555
#> Sep 1998 1015.6065 1015.6064 1015.6212 1015.6098 1015.6082 1015.6068 1015.6065
#> Oct 1998 1052.1461 1052.1461 1052.1581 1052.0818 1052.0891 1052.0900 1052.1066
#> Nov 1998 1024.2104 1024.2105 1024.2247 1024.1457 1024.1556 1024.1570 1024.1760
#> Dec 1998 1027.9225 1027.9226 1027.9130 1028.0265 1028.0056 1028.0009 1027.9544
#> Jan 1999 1103.5616 1103.5622 1103.6104 1102.8497 1102.9127 1102.9249 1103.0506
#> Feb 1999 1025.2559 1025.2563 1025.2666 1025.2307 1025.2357 1025.2360 1025.2382
#> Mar 1999 1042.6157 1042.6158 1042.6873 1042.5133 1042.4768 1042.4627 1042.3809
#> Apr 1999 1041.6282 1041.6287 1041.5205 1041.9735 1041.9704 1041.9766 1041.9565
#> May 1999 1042.2843 1042.2850 1042.3244 1042.0619 1042.1044 1042.1122 1042.1865
#> Jun 1999 965.6499 965.6462 965.6083 965.8874 965.8357 965.8262 965.8246
#> Jul 1999 1089.8159 1089.8179 1089.7666 1090.4032 1090.3889 1090.3894 1090.2778
#> Aug 1999 1056.8135 1056.8128 1056.8071 1056.7174 1056.7149 1056.7148 1056.7293
#> Sep 1999 1086.1215 1086.1212 1086.1213 1086.1532 1086.1389 1086.1354 1086.1142
#> Oct 1999 1084.4434 1084.4437 1084.4848 1084.1788 1084.2236 1084.2320 1084.3258
#> Nov 1999 1076.7256 1076.7256 1076.7185 1076.7866 1076.7671 1076.7625 1076.7204
#> Dec 1999 1074.1846 1074.1846 1074.1723 1074.3022 1074.2777 1074.2722 1074.2174
#> Jan 2000 1082.1298 1082.1304 1082.1781 1081.4874 1081.5498 1081.5619 1081.6850
#> Feb 2000 1072.2978 1072.2982 1072.2994 1072.3362 1072.3305 1072.3287 1072.3072
#> Mar 2000 1070.3804 1070.3809 1070.2244 1070.9166 1070.9069 1070.9147 1070.8814
#> Apr 2000 1101.1944 1101.1950 1101.3658 1100.5974 1100.6405 1100.6396 1100.7174
#> May 2000 1069.9161 1069.9165 1069.9025 1070.0500 1070.0246 1070.0189 1069.9538
#> Jun 2000 1256.1372 1256.1324 1256.0845 1256.3761 1256.3126 1256.3012 1256.3068
#> Jul 2000 897.7152 897.7170 897.7087 897.9081 897.9244 897.9296 897.8966
#> Aug 2000 1178.1107 1178.1099 1178.0823 1178.2449 1178.2045 1178.1963 1178.1341
#> Sep 2000 1157.4784 1157.4782 1157.4913 1157.3739 1157.3861 1157.3883 1157.4231
#> Oct 2000 1102.5811 1102.5811 1102.5935 1102.4944 1102.5051 1102.5068 1102.5306
#> Nov 2000 1093.7359 1093.7360 1093.7369 1093.7446 1093.7355 1093.7331 1093.7117
#> Dec 2000 1150.4593 1150.4597 1150.5028 1150.2245 1150.2743 1150.2837 1150.3809
#> Jan 2001 1115.7396 1115.7398 1115.7284 1115.6035 1115.5888 1115.5856 1115.5511
#> Feb 2001 1140.0768 1140.0772 1140.0840 1140.0769 1140.0801 1140.0802 1140.0778
#> Mar 2001 1213.8764 1213.8770 1213.7455 1214.2562 1214.2814 1214.2963 1214.3345
#> Apr 2001 1106.0939 1106.0943 1106.2194 1105.7363 1105.7424 1105.7353 1105.7390
#> May 2001 1147.2936 1147.2940 1147.2811 1147.4308 1147.4079 1147.4028 1147.3434
#> Jun 2001 1100.8653 1100.8619 1100.8497 1100.8409 1100.8263 1100.8244 1100.8968
#> Jul 2001 1149.0004 1149.0023 1148.9754 1149.2502 1149.2303 1149.2277 1149.1057
#> Aug 2001 1122.3802 1122.3793 1122.3530 1122.5194 1122.4827 1122.4753 1122.4205
#> Sep 2001 1122.9697 1122.9696 1123.0024 1122.7361 1122.7810 1122.7899 1122.8918
#> Oct 2001 1156.5422 1156.5420 1156.5265 1156.6451 1156.6183 1156.6125 1156.5605
#> Nov 2001 1190.5616 1190.5618 1190.5716 1190.5299 1190.5277 1190.5263 1190.5192
#> Dec 2001 1208.0332 1208.0336 1208.0768 1207.8018 1207.8509 1207.8602 1207.9572
#> Jan 2002 1174.1368 1174.1369 1174.1256 1174.1456 1174.1272 1174.1232 1174.0814
#> Feb 2002 1174.1701 1174.1704 1174.1752 1174.1758 1174.1765 1174.1763 1174.1704
#> Mar 2002 1184.4401 1184.4403 1184.7355 1183.5436 1183.5602 1183.5445 1183.5774
#> Apr 2002 1196.5278 1196.5285 1196.2153 1197.4601 1197.4781 1197.5037 1197.5260
#> May 2002 1223.6333 1223.6335 1223.6181 1223.7800 1223.7555 1223.7501 1223.6906
#> Jun 2002 1218.8902 1218.8875 1218.9170 1218.6469 1218.6693 1218.6736 1218.8005
#> Jul 2002 1121.4669 1121.4681 1121.4269 1121.7194 1121.6605 1121.6489 1121.4686
#> Aug 2002 1251.2252 1251.2248 1251.2288 1251.1881 1251.1929 1251.1936 1251.2174
#> Sep 2002 1164.8438 1164.8437 1164.8390 1164.8394 1164.8461 1164.8478 1164.8677
#> Oct 2002 1235.7226 1235.7225 1235.7034 1235.8550 1235.8267 1235.8206 1235.7638
#> Nov 2002 1329.8228 1329.8233 1329.8716 1329.5557 1329.6036 1329.6122 1329.7067
#> Dec 2002 1249.1599 1249.1601 1249.1717 1249.1268 1249.1377 1249.1395 1249.1601
#> Jan 2003 1250.1059 1250.1058 1250.0909 1250.2207 1250.1944 1250.1890 1250.1335
#> Feb 2003 1250.8659 1250.8660 1250.8707 1250.8632 1250.8604 1250.8598 1250.8523
#> Mar 2003 1298.9533 1298.9539 1298.8350 1299.1449 1299.2158 1299.2422 1299.3828
#> Apr 2003 1290.1916 1290.1913 1290.2884 1289.9859 1289.9553 1289.9421 1289.8827
#> May 2003 1296.7700 1296.7699 1296.7865 1296.7309 1296.7364 1296.7371 1296.7499
#> Jun 2003 1284.3721 1284.3700 1284.3818 1284.3445 1284.3208 1284.3151 1284.3181
#> Jul 2003 1234.1218 1234.1234 1234.0703 1234.3868 1234.3316 1234.3180 1234.1409
#> Aug 2003 1298.0044 1298.0044 1298.0488 1297.7254 1297.7789 1297.7893 1297.9075
#> Sep 2003 1304.7327 1304.7334 1304.6768 1304.9204 1304.9032 1304.8990 1304.8551
#> Oct 2003 1342.7821 1342.7818 1342.7601 1342.9505 1342.9127 1342.9050 1342.8313
#> Nov 2003 1371.4847 1371.4852 1371.5744 1370.9822 1371.0758 1371.0939 1371.2861
#> Dec 2003 1300.6336 1300.6332 1300.6148 1300.8103 1300.7741 1300.7671 1300.6969
#> Jan 2004 1351.2258 1351.2257 1351.2463 1351.1445 1351.1550 1351.1573 1351.1829
#> Feb 2004 1327.2363 1327.2363 1327.2686 1327.0829 1327.1075 1327.1127 1327.1670
#> Mar 2004 1314.0787 1314.0785 1313.8865 1314.7042 1314.6903 1314.7015 1314.6755
#> Apr 2004 1345.0828 1345.0819 1345.1925 1344.7980 1344.7729 1344.7635 1344.7277
#> May 2004 1372.2558 1372.2555 1372.3038 1372.0395 1372.0776 1372.0842 1372.1717
#> Jun 2004 1400.7751 1400.7734 1400.7592 1401.0279 1400.9492 1400.9306 1400.7942
#> Jul 2004 1369.7713 1369.7739 1369.7372 1369.8411 1369.8386 1369.8312 1369.7558
#> Aug 2004 1359.2153 1359.2156 1359.2295 1359.1180 1359.1367 1359.1395 1359.1763
#> Sep 2004 1434.7888 1434.7910 1434.7106 1434.9454 1434.9515 1434.9493 1434.9289
#> Oct 2004 1411.8871 1411.8875 1411.9322 1411.6072 1411.6619 1411.6724 1411.7846
#> Nov 2004 1358.1739 1358.1739 1358.1871 1358.1252 1358.1278 1358.1281 1358.1354
#> Dec 2004 1355.4086 1355.4080 1355.3870 1355.5937 1355.5524 1355.5452 1355.4682
#> Jan 2005 1429.4714 1429.4706 1429.5370 1429.1789 1429.2241 1429.2358 1429.3469
#> Feb 2005 1426.6371 1426.6354 1426.6610 1426.6710 1426.6436 1426.6418 1426.6131
#> Mar 2005 1433.7031 1433.7008 1433.9967 1433.0700 1432.9857 1432.9531 1432.8185
#> Apr 2005 1284.2208 1284.2193 1283.9646 1284.8590 1284.9122 1284.9548 1285.0959
#> May 2005 1359.8882 1359.8860 1359.9144 1359.9814 1359.9425 1359.9362 1359.8914
#> Jun 2005 1452.7141 1452.7130 1452.7054 1452.9990 1452.9208 1452.8971 1452.7443
#> Jul 2005 1349.5855 1349.5977 1349.4541 1349.2737 1349.4536 1349.4609 1349.6189
#> Aug 2005 1397.0271 1397.0262 1397.0236 1397.1685 1397.1273 1397.1202 1397.0531
#> Sep 2005 1392.5615 1392.5636 1392.4836 1392.7162 1392.7236 1392.7219 1392.7062
#> Oct 2005 1376.8403 1376.8397 1376.8976 1376.5974 1376.6339 1376.6428 1376.7334
#> Nov 2005 1370.8465 1370.8458 1370.8627 1370.8423 1370.8293 1370.8286 1370.8155
#> Dec 2005 1393.0174 1393.0164 1393.0353 1392.9788 1392.9723 1392.9753 1392.9780
#> Jan 2006 1348.2969 1348.2952 1348.3301 1348.2285 1348.2183 1348.2234 1348.2298
#> Feb 2006 1422.9463 1422.9431 1422.9913 1422.9839 1422.9411 1422.9416 1422.9032
#> Mar 2006 1390.7870 1390.7846 1390.5845 1391.4849 1391.4569 1391.4779 1391.4566
#> Apr 2006 1436.2526 1436.2493 1436.5315 1435.2335 1435.2844 1435.3011 1435.4702
#> May 2006 1359.9607 1359.9500 1360.0830 1360.4806 1360.2743 1360.2444 1359.9780
#> Jun 2006 1421.4895 1421.4946 1421.4288 1421.8805 1421.8532 1421.8073 1421.6848
#> Jul 2006 1462.0059 1462.0292 1461.7119 1461.4601 1461.8062 1461.8262 1462.1616
#> Aug 2006 1430.7611 1430.7604 1430.7474 1430.8797 1430.8420 1430.8386 1430.7768
#> Sep 2006 1346.3009 1346.3034 1346.2593 1346.1863 1346.2429 1346.2530 1346.3348
#> Oct 2006 1405.6092 1405.6085 1405.6248 1405.5605 1405.5572 1405.5604 1405.5638
#> Nov 2006 1451.2969 1451.2960 1451.2975 1451.3273 1451.3079 1451.3084 1451.2753
#> Dec 2006 1447.4728 1447.4718 1447.5236 1447.1796 1447.2228 1447.2380 1447.3342
#> Jan 2007 1407.3512 1407.3393 1407.4887 1407.6939 1407.5081 1407.5025 1407.3161
#> Feb 2007 1437.6346 1437.6304 1437.6901 1437.6639 1437.6157 1437.6181 1437.5740
#> Mar 2007 1540.1292 1540.1266 1539.9814 1540.4910 1540.5102 1540.5432 1540.6158
#> Apr 2007 1385.5285 1385.5250 1385.7378 1384.7733 1384.7834 1384.7960 1384.8757
#> May 2007 1465.6249 1465.6054 1465.8825 1466.3843 1466.0421 1465.9946 1465.5795
#> Jun 2007 1496.1593 1496.1730 1496.0629 1496.3558 1496.4605 1496.4038 1496.4543
#> Jul 2007 1481.9215 1481.9556 1481.4270 1481.3608 1481.8222 1481.8467 1482.2629
#> Aug 2007 1521.4967 1521.4965 1521.4612 1521.6104 1521.5705 1521.5713 1521.5112
#> Sep 2007 1515.6407 1515.6443 1515.6294 1515.1785 1515.3044 1515.3323 1515.5584
#> Oct 2007 1501.4624 1501.4619 1501.4252 1501.6529 1501.6029 1501.6012 1501.5162
#> Nov 2007 1515.3464 1515.3458 1515.3223 1515.4878 1515.4521 1515.4531 1515.3926
#> Dec 2007 1525.3111 1525.3104 1525.3552 1525.0378 1525.0828 1525.1013 1525.2030
#> Jan 2008 1536.0141 1535.9899 1536.3225 1536.7027 1536.3433 1536.3301 1535.9780
#> Feb 2008 1513.2140 1513.2060 1513.3019 1513.4423 1513.3427 1513.3356 1513.1752
#> Mar 2008 1504.3849 1504.3791 1504.7681 1503.3300 1503.3204 1503.3120 1503.3025
#> Apr 2008 1543.6797 1543.6696 1543.4895 1543.5357 1543.6034 1543.6675 1543.8130
#> May 2008 1532.7040 1532.6729 1533.1830 1533.5574 1533.1061 1533.0411 1532.4941
#> Jun 2008 1412.4180 1412.4345 1412.3064 1412.7762 1412.9097 1412.8314 1412.8503
#> Jul 2008 1576.5002 1576.5784 1575.3801 1575.6768 1576.4774 1576.5621 1577.6876
#> Aug 2008 1493.3848 1493.3830 1493.4446 1493.1035 1493.1401 1493.1548 1493.2146
#> Sep 2008 1530.9254 1530.9253 1530.8819 1531.0089 1531.0007 1531.0034 1530.9418
#> Oct 2008 1514.9299 1514.9276 1514.9066 1515.1802 1515.1143 1515.1103 1514.9673
#> Nov 2008 1531.6345 1531.6324 1531.7086 1531.3392 1531.3856 1531.4047 1531.4969
#> Dec 2008 1581.0350 1581.0310 1581.0252 1581.3245 1581.2462 1581.2435 1581.0893
#> Jan 2009 1591.8417 1591.8028 1592.3929 1592.6494 1592.1451 1592.1336 1591.6986
#> Feb 2009 1461.2108 1461.1983 1461.3573 1461.4658 1461.3401 1461.3318 1461.1286
#> Mar 2009 1610.3325 1610.3212 1610.2379 1611.0199 1610.9653 1610.9874 1610.8737
#> Apr 2009 1590.6880 1590.6674 1591.1182 1588.3863 1588.4159 1588.4402 1588.4930
#> May 2009 1642.9093 1642.8707 1643.5321 1643.6590 1643.1853 1643.1173 1642.5296
#> Jun 2009 1506.7246 1506.7418 1506.6326 1507.5108 1507.5770 1507.4368 1507.2120
#> Jul 2009 1552.8914 1553.0307 1550.9561 1551.3540 1552.7823 1552.9553 1555.1496
#> Aug 2009 1581.1410 1581.1328 1581.3466 1581.2270 1581.0386 1581.0391 1580.8871
#> Sep 2009 1550.6693 1550.6622 1550.7243 1550.8896 1550.8042 1550.7966 1550.5862
#> Oct 2009 1615.4326 1615.4246 1615.5229 1615.5645 1615.4872 1615.4865 1615.3153
#> Nov 2009 1579.8197 1579.8115 1579.9211 1579.8907 1579.8300 1579.8349 1579.7099
#> Dec 2009 1535.9861 1535.9764 1536.0413 1536.3253 1536.2067 1536.2076 1535.9879
#> Jan 2010 1613.2322 1613.1861 1613.8869 1613.9025 1613.3886 1613.3924 1612.9798
#> Feb 2010 1538.2159 1538.1951 1538.4304 1538.5667 1538.3844 1538.3812 1538.1223
#> Mar 2010 1532.0140 1531.9950 1532.2819 1532.0717 1531.8817 1531.8625 1531.5483
#> Apr 2010 1518.6346 1518.6049 1518.7877 1516.6709 1516.7611 1516.8354 1517.0488
#> May 2010 1535.8212 1535.7788 1536.4729 1536.5508 1536.0726 1536.0081 1535.4409
#> Jun 2010 1566.2788 1566.3013 1566.2997 1567.4967 1567.5164 1567.2267 1566.6555
#> Jul 2010 1575.7630 1575.9802 1572.8695 1573.0605 1575.3407 1575.6450 1579.2865
#> Aug 2010 1543.8214 1543.7989 1544.2790 1544.9466 1544.2767 1544.2094 1543.0867
#> Sep 2010 1575.1107 1575.0963 1575.2628 1575.4303 1575.2687 1575.2646 1574.9730
#> Oct 2010 1553.2413 1553.2273 1553.4406 1553.1431 1553.0700 1553.0929 1552.9934
#> Nov 2010 1541.7632 1541.7473 1541.9001 1542.0607 1541.9035 1541.9173 1541.6665
#> Dec 2010 1515.3109 1515.2930 1515.4403 1515.6416 1515.4764 1515.4957 1515.2542
#> Jan 2011 1544.5653 1544.5145 1545.2354 1545.1829 1544.6650 1544.6873 1544.3125
#> Feb 2011 1546.9181 1546.8926 1547.1391 1547.1916 1547.0117 1547.0251 1546.8295
#> Mar 2011 1509.5375 1509.5138 1509.5077 1510.4389 1510.2735 1510.2866 1510.0757
#> Apr 2011 1575.9467 1575.9100 1576.4697 1572.8696 1572.9619 1573.0062 1573.2760
#> May 2011 1501.3039 1501.2646 1501.7884 1502.0134 1501.6191 1501.5502 1501.0692
#> Jun 2011 1491.4548 1491.4744 1491.5878 1492.7960 1492.7680 1492.3604 1491.5424
#> Jul 2011 1541.5301 1541.7723 1538.3185 1538.2577 1540.9721 1541.3006 1545.4774
#> Aug 2011 1493.1478 1493.1168 1493.8083 1495.1971 1494.1123 1493.9592 1491.9902
#> Sep 2011 1490.0297 1490.0218 1490.2125 1490.3529 1490.1752 1490.1559 1489.8702
#> Oct 2011 1489.0666 1489.0605 1489.3004 1488.9470 1488.8556 1488.8749 1488.7881
#> Nov 2011 1500.3109 1500.3041 1500.4801 1500.5746 1500.3935 1500.4173 1500.1799
#> Dec 2011 1516.7466 1516.7380 1516.9443 1516.7317 1516.5744 1516.6735 1516.5719
#> Jan 2012 1471.6292 1471.6011 1472.0928 1472.0187 1471.5759 1471.7208 1471.5704
#> Feb 2012 1512.2744 1512.0983 1512.5729 1512.9377 1512.7323 1512.8192 1512.8266
#> Mar 2012 1539.8870 1539.8738 1539.9514 1540.1747 1540.0020 1540.1556 1540.1120
#> Apr 2012 1497.9277 1497.9027 1498.3453 1494.9860 1495.0410 1495.2204 1495.5736
#> May 2012 1540.3587 1540.3351 1540.6710 1540.8958 1540.5324 1540.5951 1540.2252
#> Jun 2012 1655.7757 1655.8089 1656.1232 1658.5851 1658.7701 1657.0692 1655.2574
#> Jul 2012 1427.0597 1427.3023 1423.9389 1424.0667 1426.6254 1427.0314 1430.9983
#> Aug 2012 1567.5316 1567.4975 1568.4035 1570.1290 1568.7312 1568.6085 1565.8508
#> Sep 2012 1542.2811 1542.2798 1542.5743 1542.0698 1541.9655 1542.0485 1542.0229
#> Oct 2012 1499.6230 1499.6217 1499.8090 1499.8893 1499.6851 1499.7689 1499.5546
#> Nov 2012 1510.8372 1510.8353 1511.0267 1510.9773 1510.7800 1510.8887 1510.7221
#> Dec 2012 1540.8071 1540.8020 1541.0588 1540.2884 1540.1571 1540.4002 1540.5596
#> Jan 2013 1487.6706 1487.6566 1487.9259 1487.6565 1487.2856 1487.6110 1487.8573
#> Feb 2013 1554.1679 1553.8266 1554.5297 1554.8305 1554.6483 1554.8839 1555.3792
#> Mar 2013 1537.0347 1537.0300 1537.4952 1535.4039 1535.2008 1535.5332 1535.7899
#> Apr 2013 1489.6202 1489.6102 1489.4711 1488.3555 1488.2993 1488.7037 1489.2074
#> May 2013 1526.6653 1526.6633 1526.7552 1526.3722 1526.1040 1526.4066 1526.4952
#> Jun 2013 1587.8990 1587.9807 1588.3978 1593.0435 1593.5934 1589.9419 1585.9147
#> Jul 2013 1393.2458 1393.4602 1390.5947 1390.5782 1392.6689 1393.1761 1396.4512
#> Aug 2013 1560.9535 1560.9403 1561.7924 1562.8826 1561.5274 1561.6094 1559.2034
#> Sep 2013 1522.7231 1522.7403 1522.9525 1522.4697 1522.3171 1522.5636 1522.6719
#> Oct 2013 1515.3829 1515.3949 1515.6042 1515.5911 1515.4048 1515.6557 1515.6922
#> Nov 2013 1520.9231 1520.9292 1521.1814 1521.0110 1520.9127 1521.1841 1521.3460
#> Dec 2013 1507.8121 1507.8079 1508.0714 1507.7771 1507.6852 1508.0880 1508.3741
#> Jan 2014 1535.5105 1535.5050 1535.6871 1534.3934 1533.9845 1534.4648 1535.9117
#> Feb 2014 1494.8456 1494.3350 1495.3585 1496.3937 1496.3250 1496.7182 1497.3379
#> Mar 2014 1496.2836 1496.2808 1495.2093 1495.5138 1495.4754 1496.1057 1496.4488
#> Apr 2014 1517.1129 1517.1088 1517.6326 1511.2861 1511.1936 1511.8213 1511.9667
#> May 2014 1510.4351 1510.4392 1510.5368 1510.4957 1509.6507 1510.2701 1510.3090
#> Jun 2014 1495.2788 1495.4055 1495.6606 1503.3834 1504.3953 1498.6154 1492.0214
#> Jul 2014 1520.1646 1520.3527 1518.0598 1517.3295 1518.9929 1519.7980 1524.6474
#> Aug 2014 1484.5019 1484.5236 1485.1983 1485.6638 1484.5293 1484.8696 1482.3725
#> Sep 2014 1511.6032 1511.6692 1511.7740 1511.4990 1511.3623 1511.7398 1511.7962
#> Oct 2014 1520.0369 1520.0972 1520.3190 1520.3420 1520.2384 1520.6607 1521.2310
#> Nov 2014 1552.0595 1552.1248 1552.4917 1552.2973 1552.3331 1552.7724 1553.3280
#> Dec 2014 1507.6398 1507.6665 1508.0087 1508.3643 1508.3502 1508.8998 1509.2915
#> Jan 2015 1559.5080 1559.6236 1560.0588 1557.8779 1557.4249 1558.0634 1560.5786
#> Feb 2015 1489.1424 1488.0665 1489.3289 1491.0143 1491.1460 1491.8018 1492.3098
#> Mar 2015 1532.0161 1532.0050 1529.2870 1529.6025 1529.7213 1530.6755 1530.5918
#> Apr 2015 1546.7021 1546.6995 1547.2048 1536.6213 1536.7105 1537.7633 1537.3324
#> May 2015 1545.5911 1545.6013 1545.7600 1546.6094 1544.9460 1546.1073 1545.6691
#> Jun 2015 1498.1057 1498.2896 1498.3728 1508.9160 1510.3234 1501.7390 1492.8083
#> Jul 2015 1572.7804 1572.9200 1571.7791 1570.4151 1571.2248 1572.2812 1580.2146
#> Aug 2015 1588.6139 1588.6989 1589.0914 1589.1629 1588.2917 1588.9637 1586.3304
#> Sep 2015 1562.1781 1562.3089 1562.3513 1562.1695 1562.1222 1562.6298 1562.4694
#> Oct 2015 1612.7871 1612.9174 1613.1942 1613.1977 1613.2528 1613.8833 1614.9932
#> Nov 2015 1579.5155 1579.6629 1580.0679 1580.7027 1580.7902 1581.3962 1581.9294
#> Dec 2015 1589.1094 1589.1875 1589.6884 1590.7292 1590.8602 1591.6240 1592.0151
#> Jan 2016 1617.2969 1617.5808 1618.3746 1615.3102 1614.7107 1615.5284 1619.1515
#> Feb 2016 1580.0276 1578.1759 1579.9782 1583.0902 1583.4003 1584.3940 1584.4624
#> Mar 2016 1575.7285 1575.7086 1570.8096 1571.4629 1571.7415 1573.0949 1572.1911
#> Apr 2016 1601.2428 1601.2369 1601.9440 1584.3099 1584.7094 1586.3195 1585.0875
#> May 2016 1559.9691 1559.9812 1560.2386 1563.1848 1560.5753 1562.3549 1560.7201
#> Jun 2016 1611.1211 1611.3510 1611.3514 1624.8967 1626.8129 1614.3890 1603.1010
#> Jul 2016 1530.7804 1530.9047 1530.5737 1528.3195 1528.6620 1530.0225 1542.9866
#> Aug 2016 1526.3365 1526.5004 1526.6078 1527.1539 1526.4652 1527.3873 1524.2480
#> Sep 2016 1557.2498 1557.4937 1557.5704 1557.8107 1557.7953 1558.3908 1557.6639
#> Oct 2016 1546.8891 1547.1297 1547.5008 1547.5819 1547.7362 1548.5046 1549.8358
#> Nov 2016 1526.6689 1526.9472 1527.4415 1528.7535 1528.8030 1529.5368 1529.7779
#> Dec 2016 1563.5824 1563.7648 1564.4755 1565.7133 1565.9164 1566.8687 1567.1350
#> Jan 2017 1506.1470 1506.6416 1507.6376 1505.2341 1504.5387 1505.5096 1508.9104
#> Feb 2017 NaN 1551.6453 1553.6657 1557.1447 1557.5509 1558.9086 1558.5765
#> Mar 2017 NaN NaN 1559.7271 1562.9668 1563.4561 1565.2933 1563.9775
#> Apr 2017 NaN NaN NaN 1581.4519 1581.9589 1584.0379 1582.0239
#> May 2017 NaN NaN NaN NaN 1554.0694 1556.4824 1553.8863
#> Jun 2017 NaN NaN NaN NaN NaN 1571.1992 1558.8636
#> Jul 2017 NaN NaN NaN NaN NaN NaN 1528.2812
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 92
#> Apr 1982 489.6927
#> May 1982 478.1847
#> Jun 1982 486.9787
#> Jul 1982 485.1866
#> Aug 1982 490.8928
#> Sep 1982 497.4600
#> Oct 1982 480.6821
#> Nov 1982 485.9550
#> Dec 1982 488.8389
#> Jan 1983 444.3556
#> Feb 1983 504.3506
#> Mar 1983 513.1330
#> Apr 1983 560.7190
#> May 1983 481.8651
#> Jun 1983 507.5579
#> Jul 1983 498.9394
#> Aug 1983 510.4611
#> Sep 1983 516.6469
#> Oct 1983 514.8080
#> Nov 1983 528.9732
#> Dec 1983 531.3513
#> Jan 1984 481.5008
#> Feb 1984 534.5192
#> Mar 1984 555.0111
#> Apr 1984 521.1762
#> May 1984 560.9569
#> Jun 1984 553.0529
#> Jul 1984 574.8722
#> Aug 1984 565.0370
#> Sep 1984 570.2145
#> Oct 1984 578.8707
#> Nov 1984 579.1069
#> Dec 1984 571.4030
#> Jan 1985 594.3328
#> Feb 1985 610.7526
#> Mar 1985 604.3880
#> Apr 1985 629.6748
#> May 1985 662.3210
#> Jun 1985 623.3315
#> Jul 1985 633.9652
#> Aug 1985 666.9931
#> Sep 1985 609.4958
#> Oct 1985 661.0966
#> Nov 1985 651.4785
#> Dec 1985 636.8090
#> Jan 1986 659.2652
#> Feb 1986 652.4270
#> Mar 1986 610.4448
#> Apr 1986 658.5739
#> May 1986 726.9713
#> Jun 1986 603.7501
#> Jul 1986 703.6595
#> Aug 1986 676.3554
#> Sep 1986 711.7474
#> Oct 1986 690.5009
#> Nov 1986 655.4490
#> Dec 1986 714.8036
#> Jan 1987 720.5627
#> Feb 1987 708.6575
#> Mar 1987 702.1297
#> Apr 1987 707.5077
#> May 1987 709.8603
#> Jun 1987 715.0888
#> Jul 1987 774.2038
#> Aug 1987 704.3768
#> Sep 1987 721.6378
#> Oct 1987 744.4249
#> Nov 1987 683.2821
#> Dec 1987 751.6791
#> Jan 1988 753.7416
#> Feb 1988 738.3656
#> Mar 1988 757.6886
#> Apr 1988 787.8537
#> May 1988 744.8458
#> Jun 1988 757.7207
#> Jul 1988 755.8922
#> Aug 1988 750.2565
#> Sep 1988 777.1985
#> Oct 1988 772.4716
#> Nov 1988 785.7726
#> Dec 1988 809.9881
#> Jan 1989 753.5523
#> Feb 1989 768.5785
#> Mar 1989 793.2542
#> Apr 1989 786.2509
#> May 1989 770.7945
#> Jun 1989 815.5027
#> Jul 1989 798.8414
#> Aug 1989 835.3107
#> Sep 1989 821.6247
#> Oct 1989 784.3390
#> Nov 1989 828.0285
#> Dec 1989 818.5168
#> Jan 1990 805.1028
#> Feb 1990 813.2694
#> Mar 1990 855.0961
#> Apr 1990 791.8528
#> May 1990 821.2918
#> Jun 1990 862.9258
#> Jul 1990 792.8700
#> Aug 1990 876.1738
#> Sep 1990 810.8614
#> Oct 1990 804.7953
#> Nov 1990 833.2587
#> Dec 1990 823.3753
#> Jan 1991 822.2224
#> Feb 1991 833.3520
#> Mar 1991 812.8463
#> Apr 1991 833.4273
#> May 1991 828.4512
#> Jun 1991 776.7161
#> Jul 1991 883.2656
#> Aug 1991 900.3145
#> Sep 1991 803.0293
#> Oct 1991 867.0733
#> Nov 1991 856.5344
#> Dec 1991 842.6673
#> Jan 1992 873.0323
#> Feb 1992 886.9599
#> Mar 1992 831.8701
#> Apr 1992 878.1116
#> May 1992 888.9105
#> Jun 1992 844.6486
#> Jul 1992 873.8735
#> Aug 1992 855.5048
#> Sep 1992 880.9927
#> Oct 1992 910.6700
#> Nov 1992 885.5095
#> Dec 1992 865.5660
#> Jan 1993 909.7566
#> Feb 1993 878.8233
#> Mar 1993 889.2188
#> Apr 1993 884.5995
#> May 1993 915.8396
#> Jun 1993 911.4077
#> Jul 1993 857.6190
#> Aug 1993 856.6436
#> Sep 1993 908.3619
#> Oct 1993 899.8368
#> Nov 1993 884.1206
#> Dec 1993 895.3323
#> Jan 1994 887.9365
#> Feb 1994 908.1376
#> Mar 1994 932.5868
#> Apr 1994 918.0728
#> May 1994 911.5020
#> Jun 1994 943.5159
#> Jul 1994 868.1082
#> Aug 1994 929.5994
#> Sep 1994 954.0674
#> Oct 1994 954.1084
#> Nov 1994 911.2513
#> Dec 1994 956.7407
#> Jan 1995 887.4276
#> Feb 1995 933.9758
#> Mar 1995 956.9382
#> Apr 1995 972.5840
#> May 1995 927.5750
#> Jun 1995 945.1581
#> Jul 1995 963.3256
#> Aug 1995 1013.2068
#> Sep 1995 929.9126
#> Oct 1995 938.5636
#> Nov 1995 968.1123
#> Dec 1995 983.4668
#> Jan 1996 972.4086
#> Feb 1996 974.8332
#> Mar 1996 962.7165
#> Apr 1996 960.6883
#> May 1996 969.0431
#> Jun 1996 973.3762
#> Jul 1996 958.8862
#> Aug 1996 1035.5727
#> Sep 1996 907.0390
#> Oct 1996 949.6761
#> Nov 1996 982.3564
#> Dec 1996 965.2505
#> Jan 1997 977.0839
#> Feb 1997 1001.9272
#> Mar 1997 983.1712
#> Apr 1997 946.8393
#> May 1997 1014.2889
#> Jun 1997 892.5500
#> Jul 1997 1009.4407
#> Aug 1997 981.6531
#> Sep 1997 1014.5131
#> Oct 1997 996.5764
#> Nov 1997 1013.0062
#> Dec 1997 979.2091
#> Jan 1998 1068.9857
#> Feb 1998 989.6572
#> Mar 1998 988.0199
#> Apr 1998 1028.1412
#> May 1998 997.9407
#> Jun 1998 914.4207
#> Jul 1998 1071.8642
#> Aug 1998 1026.9416
#> Sep 1998 1015.6078
#> Oct 1998 1052.1001
#> Nov 1998 1024.1653
#> Dec 1998 1027.9731
#> Jan 1999 1102.9871
#> Feb 1999 1025.2297
#> Mar 1999 1042.4029
#> Apr 1999 1041.9666
#> May 1999 1042.1381
#> Jun 1999 965.9295
#> Jul 1999 1090.2433
#> Aug 1999 1056.7430
#> Sep 1999 1086.1318
#> Oct 1999 1084.2823
#> Nov 1999 1076.7389
#> Dec 1999 1074.2398
#> Jan 2000 1081.6215
#> Feb 2000 1072.3085
#> Mar 2000 1070.9035
#> Apr 2000 1100.6539
#> May 2000 1069.9730
#> Jun 2000 1256.4397
#> Jul 2000 897.8390
#> Aug 2000 1178.1852
#> Sep 2000 1157.4166
#> Oct 2000 1102.5214
#> Nov 2000 1093.7196
#> Dec 2000 1150.3296
#> Jan 2001 1115.5646
#> Feb 2001 1140.0706
#> Mar 2001 1214.3222
#> Apr 2001 1105.7150
#> May 2001 1147.3605
#> Jun 2001 1100.9641
#> Jul 2001 1149.0719
#> Aug 2001 1122.4681
#> Sep 2001 1122.8543
#> Oct 2001 1156.5892
#> Nov 2001 1190.5201
#> Dec 2001 1207.9073
#> Jan 2002 1174.0984
#> Feb 2002 1174.1666
#> Mar 2002 1183.5277
#> Apr 2002 1197.5405
#> May 2002 1223.7115
#> Jun 2002 1218.8142
#> Jul 2002 1121.4860
#> Aug 2002 1251.2218
#> Sep 2002 1164.8688
#> Oct 2002 1235.7943
#> Nov 2002 1329.6582
#> Dec 2002 1249.1499
#> Jan 2003 1250.1589
#> Feb 2003 1250.8530
#> Mar 2003 1299.3299
#> Apr 2003 1289.8978
#> May 2003 1296.7396
#> Jun 2003 1284.3535
#> Jul 2003 1234.1712
#> Aug 2003 1297.8599
#> Sep 2003 1304.8926
#> Oct 2003 1342.8699
#> Nov 2003 1371.1904
#> Dec 2003 1300.7318
#> Jan 2004 1351.1696
#> Feb 2004 1327.1388
#> Mar 2004 1314.7076
#> Apr 2004 1344.7368
#> May 2004 1372.1277
#> Jun 2004 1400.8637
#> Jul 2004 1369.7583
#> Aug 2004 1359.1625
#> Sep 2004 1434.9598
#> Oct 2004 1411.7332
#> Nov 2004 1358.1333
#> Dec 2004 1355.5081
#> Jan 2005 1429.2899
#> Feb 2005 1426.6206
#> Mar 2005 1432.8465
#> Apr 2005 1285.0597
#> May 2005 1359.9031
#> Jun 2005 1452.8023
#> Jul 2005 1349.5711
#> Aug 2005 1397.0830
#> Sep 2005 1392.7327
#> Oct 2005 1376.6863
#> Nov 2005 1370.8205
#> Dec 2005 1392.9778
#> Jan 2006 1348.2247
#> Feb 2006 1422.9104
#> Mar 2006 1391.4857
#> Apr 2006 1435.3728
#> May 2006 1360.0424
#> Jun 2006 1421.7171
#> Jul 2006 1462.1062
#> Aug 2006 1430.8088
#> Sep 2006 1346.3148
#> Oct 2006 1405.5626
#> Nov 2006 1451.2928
#> Dec 2006 1447.2898
#> Jan 2007 1407.3626
#> Feb 2007 1437.5810
#> Mar 2007 1540.6006
#> Apr 2007 1384.8295
#> May 2007 1465.6567
#> Jun 2007 1496.3991
#> Jul 2007 1482.2459
#> Aug 2007 1521.5520
#> Sep 2007 1515.4779
#> Oct 2007 1501.5655
#> Nov 2007 1515.4279
#> Dec 2007 1525.1585
#> Jan 2008 1536.0448
#> Feb 2008 1513.2128
#> Mar 2008 1503.2563
#> Apr 2008 1543.7924
#> May 2008 1532.5458
#> Jun 2008 1412.7844
#> Jul 2008 1577.6078
#> Aug 2008 1493.1794
#> Sep 2008 1530.9797
#> Oct 2008 1515.0327
#> Nov 2008 1531.4437
#> Dec 2008 1581.1567
#> Jan 2009 1591.7355
#> Feb 2009 1461.1661
#> Mar 2009 1610.9048
#> Apr 2009 1588.4614
#> May 2009 1642.5557
#> Jun 2009 1507.1617
#> Jul 2009 1554.9190
#> Aug 2009 1580.8876
#> Sep 2009 1550.6584
#> Oct 2009 1615.3645
#> Nov 2009 1579.7378
#> Dec 2009 1536.0717
#> Jan 2010 1612.9918
#> Feb 2010 1538.1665
#> Mar 2010 1531.6206
#> Apr 2010 1516.9790
#> May 2010 1535.4459
#> Jun 2010 1566.5176
#> Jul 2010 1578.8196
#> Aug 2010 1543.5155
#> Sep 2010 1575.0479
#> Oct 2010 1552.9862
#> Nov 2010 1541.7381
#> Dec 2010 1515.3308
#> Jan 2011 1544.3088
#> Feb 2011 1546.8523
#> Mar 2011 1510.1301
#> Apr 2011 1573.1333
#> May 2011 1501.0853
#> Jun 2011 1491.3312
#> Jul 2011 1544.8956
#> Aug 2011 1492.8019
#> Sep 2011 1489.9337
#> Oct 2011 1488.7718
#> Nov 2011 1500.2487
#> Dec 2011 1516.6084
#> Jan 2012 1471.5635
#> Feb 2012 1512.7378
#> Mar 2012 1540.1315
#> Apr 2012 1495.4477
#> May 2012 1540.2896
#> Jun 2012 1654.7404
#> Jul 2012 1430.5186
#> Aug 2012 1567.0938
#> Sep 2012 1541.9881
#> Oct 2012 1499.6313
#> Nov 2012 1510.7854
#> Dec 2012 1540.5397
#> Jan 2013 1487.8260
#> Feb 2013 1555.1293
#> Mar 2013 1535.7821
#> Apr 2013 1489.1998
#> May 2013 1526.5877
#> Jun 2013 1585.0270
#> Jul 2013 1396.1953
#> Aug 2013 1560.4611
#> Sep 2013 1522.7601
#> Oct 2013 1515.8371
#> Nov 2013 1521.4346
#> Dec 2013 1508.4700
#> Jan 2014 1535.7590
#> Feb 2014 1496.9499
#> Mar 2014 1496.3836
#> Apr 2014 1511.9293
#> May 2014 1510.2627
#> Jun 2014 1490.7884
#> Jul 2014 1524.4310
#> Aug 2014 1484.6562
#> Sep 2014 1511.6798
#> Oct 2014 1521.2870
#> Nov 2014 1553.4994
#> Dec 2014 1509.3949
#> Jan 2015 1560.1888
#> Feb 2015 1491.8495
#> Mar 2015 1530.4663
#> Apr 2015 1537.2003
#> May 2015 1545.4307
#> Jun 2015 1491.3551
#> Jul 2015 1580.0616
#> Aug 2015 1590.0953
#> Sep 2015 1562.0279
#> Oct 2015 1614.8992
#> Nov 2015 1582.3382
#> Dec 2015 1592.0876
#> Jan 2016 1618.4846
#> Feb 2016 1583.8935
#> Mar 2016 1571.9949
#> Apr 2016 1584.7526
#> May 2016 1560.3737
#> Jun 2016 1601.3059
#> Jul 2016 1542.6425
#> Aug 2016 1529.5677
#> Sep 2016 1556.8055
#> Oct 2016 1549.5338
#> Nov 2016 1530.3727
#> Dec 2016 1567.0502
#> Jan 2017 1508.1994
#> Feb 2017 1557.9416
#> Mar 2017 1563.5836
#> Apr 2017 1581.4058
#> May 2017 1553.3763
#> Jun 2017 1556.9286
#> Jul 2017 1527.8039
#> Aug 2017 1546.3989
#>
#> $t
#> Series 1 Series 2 Series 3 Series 4 Series 5 Series 6 Series 7
#> Apr 1982 482.7392 482.7395 482.7755 482.7471 482.7357 482.7350 482.7384
#> May 1982 483.8255 483.8258 483.8645 483.8386 483.8258 483.8248 483.8285
#> Jun 1982 485.2102 485.2104 485.2503 485.2332 485.2177 485.2159 485.2207
#> Jul 1982 486.1437 486.1438 486.1750 486.1647 486.1516 486.1499 486.1540
#> Aug 1982 487.2839 487.2840 487.3113 487.3077 487.2947 487.2928 487.2970
#> Sep 1982 488.6547 488.6547 488.6813 488.6815 488.6681 488.6660 488.6703
#> Oct 1982 490.2549 490.2549 490.2825 490.2822 490.2689 490.2668 490.2711
#> Nov 1982 491.9725 491.9725 492.0005 491.9943 491.9830 491.9813 491.9848
#> Dec 1982 493.7744 493.7745 493.8048 493.7898 493.7804 493.7792 493.7818
#> Jan 1983 495.5367 495.5368 495.5693 495.5436 495.5365 495.5361 495.5376
#> Feb 1983 497.3119 497.3121 497.3453 497.3095 497.3052 497.3056 497.3060
#> Mar 1983 499.1691 499.1693 499.2006 499.1577 499.1563 499.1575 499.1567
#> Apr 1983 501.0751 501.0753 501.1015 501.0554 501.0574 501.0592 501.0573
#> May 1983 503.1842 503.1844 503.2029 503.1585 503.1637 503.1659 503.1631
#> Jun 1983 505.5621 505.5623 505.5711 505.5329 505.5407 505.5432 505.5397
#> Jul 1983 508.2225 508.2227 508.2217 508.1934 508.2024 508.2049 508.2012
#> Aug 1983 511.1367 511.1368 511.1295 511.1133 511.1210 511.1229 511.1201
#> Sep 1983 514.3645 514.3646 514.3556 514.3519 514.3557 514.3566 514.3555
#> Oct 1983 518.0125 518.0126 518.0084 518.0155 518.0126 518.0122 518.0137
#> Nov 1983 522.1560 522.1561 522.1624 522.1775 522.1660 522.1641 522.1686
#> Dec 1983 526.7343 526.7344 526.7545 526.7732 526.7530 526.7496 526.7572
#> Jan 1984 531.6700 531.6702 531.7057 531.7245 531.6961 531.6914 531.7017
#> Feb 1984 536.7528 536.7531 536.8030 536.8199 536.7846 536.7790 536.7915
#> Mar 1984 541.7443 541.7446 541.8045 541.8191 541.7797 541.7734 541.7872
#> Apr 1984 546.5885 546.5887 546.6532 546.6674 546.6261 546.6195 546.6339
#> May 1984 551.2974 551.2977 551.3613 551.3764 551.3359 551.3293 551.3434
#> Jun 1984 555.8266 555.8268 555.8836 555.9001 555.8633 555.8572 555.8700
#> Jul 1984 560.3465 560.3466 560.3912 560.4086 560.3785 560.3733 560.3839
#> Aug 1984 565.1514 565.1515 565.1792 565.1960 565.1754 565.1716 565.1790
#> Sep 1984 570.3236 570.3236 570.3312 570.3451 570.3361 570.3343 570.3377
#> Oct 1984 576.1263 576.1263 576.1144 576.1243 576.1267 576.1268 576.1263
#> Nov 1984 582.6264 582.6263 582.5981 582.6033 582.6155 582.6173 582.6134
#> Dec 1984 589.8006 589.8005 589.7615 589.7613 589.7806 589.7837 589.7774
#> Jan 1985 597.6502 597.6502 597.6064 597.6008 597.6239 597.6279 597.6202
#> Feb 1985 605.9454 605.9454 605.9011 605.8901 605.9150 605.9195 605.9111
#> Mar 1985 614.3273 614.3274 614.2853 614.2694 614.2947 614.2994 614.2908
#> Apr 1985 622.5048 622.5048 622.4676 622.4454 622.4701 622.4750 622.4664
#> May 1985 630.0857 630.0859 630.0552 630.0257 630.0492 630.0541 630.0458
#> Jun 1985 636.4857 636.4859 636.4604 636.4260 636.4481 636.4530 636.4451
#> Jul 1985 641.3937 641.3939 641.3706 641.3382 641.3583 641.3628 641.3556
#> Aug 1985 644.5833 644.5834 644.5562 644.5356 644.5538 644.5576 644.5514
#> Sep 1985 646.3418 646.3418 646.3052 646.3079 646.3238 646.3264 646.3215
#> Oct 1985 647.0400 647.0398 646.9896 647.0258 647.0385 647.0395 647.0363
#> Nov 1985 647.3547 647.3543 647.2870 647.3630 647.3726 647.3717 647.3705
#> Dec 1985 648.0621 648.0614 647.9752 648.0934 648.1003 648.0974 648.0980
#> Jan 1986 649.6274 649.6266 649.5232 649.6810 649.6852 649.6805 649.6829
#> Feb 1986 652.2084 652.2074 652.0944 652.2841 652.2843 652.2778 652.2822
#> Mar 1986 655.9187 655.9176 655.8076 656.0179 656.0113 656.0030 656.0100
#> Apr 1986 660.7757 660.7746 660.6835 660.9003 660.8831 660.8729 660.8834
#> May 1986 666.5552 666.5542 666.4941 666.7031 666.6736 666.6617 666.6759
#> Jun 1986 672.9805 672.9795 672.9605 673.1493 673.1061 673.0926 673.1108
#> Jul 1986 679.7436 679.7428 679.7696 679.9279 679.8714 679.8567 679.8784
#> Aug 1986 686.2782 686.2776 686.3486 686.4694 686.4021 686.3868 686.4111
#> Sep 1986 692.2045 692.2041 692.3138 692.3959 692.3206 692.3052 692.3313
#> Oct 1986 697.3253 697.3251 697.4628 697.5089 697.4301 697.4153 697.4417
#> Nov 1986 701.2890 701.2889 701.4400 701.4559 701.3792 701.3658 701.3907
#> Dec 1986 704.1576 704.1577 704.3075 704.3016 704.2321 704.2205 704.2427
#> Jan 1987 706.1127 706.1128 706.2458 706.2266 706.1695 706.1606 706.1783
#> Feb 1987 707.4335 707.4336 707.5394 707.5136 707.4723 707.4663 707.4788
#> Mar 1987 708.6953 708.6954 708.7701 708.7409 708.7165 708.7136 708.7205
#> Apr 1987 710.3034 710.3036 710.3468 710.3159 710.3080 710.3081 710.3095
#> May 1987 712.2908 712.2911 712.3064 712.2756 712.2816 712.2841 712.2811
#> Jun 1987 714.9055 714.9057 714.9002 714.8716 714.8870 714.8912 714.8851
#> Jul 1987 718.2818 718.2820 718.2662 718.2389 718.2579 718.2625 718.2555
#> Aug 1987 722.4477 722.4479 722.4332 722.4062 722.4226 722.4265 722.4204
#> Sep 1987 727.4438 727.4439 727.4382 727.4108 727.4206 727.4231 727.4194
#> Oct 1987 732.9121 732.9122 732.9170 732.8885 732.8913 732.8924 732.8911
#> Nov 1987 738.5275 738.5275 738.5421 738.5135 738.5103 738.5102 738.5109
#> Dec 1987 743.7797 743.7797 743.8016 743.7748 743.7674 743.7665 743.7687
#> Jan 1988 748.1324 748.1325 748.1604 748.1367 748.1267 748.1253 748.1283
#> Feb 1988 751.6954 751.6955 751.7272 751.7089 751.6978 751.6964 751.6997
#> Mar 1988 754.7412 754.7413 754.7731 754.7631 754.7528 754.7516 754.7545
#> Apr 1988 757.3904 757.3905 757.4147 757.4184 757.4111 757.4104 757.4123
#> May 1988 759.7577 759.7578 759.7704 759.7906 759.7870 759.7867 759.7876
#> Jun 1988 762.0871 762.0871 762.0890 762.1229 762.1223 762.1222 762.1224
#> Jul 1988 764.3984 764.3984 764.3938 764.4328 764.4331 764.4330 764.4330
#> Aug 1988 766.7673 766.7673 766.7624 766.7984 766.7968 766.7960 766.7968
#> Sep 1988 769.1399 769.1398 769.1385 769.1653 769.1605 769.1590 769.1610
#> Oct 1988 771.4234 771.4233 771.4273 771.4417 771.4338 771.4318 771.4348
#> Nov 1988 773.8463 773.8462 773.8563 773.8595 773.8490 773.8466 773.8504
#> Dec 1988 776.5363 776.5362 776.5509 776.5471 776.5356 776.5331 776.5372
#> Jan 1989 779.5239 779.5238 779.5407 779.5366 779.5258 779.5237 779.5274
#> Feb 1989 782.9335 782.9335 782.9485 782.9515 782.9433 782.9419 782.9445
#> Mar 1989 786.7702 786.7703 786.7772 786.7928 786.7900 786.7897 786.7905
#> Apr 1989 790.6903 790.6904 790.6870 790.7155 790.7194 790.7204 790.7189
#> May 1989 794.7685 794.7685 794.7552 794.7950 794.8047 794.8067 794.8033
#> Jun 1989 799.1146 799.1147 799.0915 799.1389 799.1529 799.1556 799.1508
#> Jul 1989 803.4200 803.4200 803.3881 803.4388 803.4557 803.4588 803.4532
#> Aug 1989 807.6053 807.6053 807.5672 807.6158 807.6340 807.6370 807.6312
#> Sep 1989 811.3324 811.3323 811.2953 811.3332 811.3487 811.3510 811.3462
#> Oct 1989 814.2980 814.2979 814.2736 814.2930 814.2994 814.2999 814.2982
#> Nov 1989 816.4793 816.4791 816.4766 816.4714 816.4639 816.4616 816.4647
#> Dec 1989 817.8246 817.8244 817.8457 817.8127 817.7902 817.7849 817.7932
#> Jan 1990 818.5075 818.5072 818.5496 818.4910 818.4547 818.4466 818.4596
#> Feb 1990 818.8922 818.8918 818.9473 818.8697 818.8235 818.8133 818.8298
#> Mar 1990 819.0099 819.0095 819.0673 818.9793 818.9289 818.9176 818.9358
#> Apr 1990 819.0205 819.0201 819.0701 818.9825 818.9327 818.9212 818.9394
#> May 1990 819.0746 819.0742 819.1136 819.0289 818.9832 818.9723 818.9893
#> Jun 1990 819.1940 819.1936 819.2193 819.1371 819.0991 819.0897 819.1041
#> Jul 1990 819.2599 819.2595 819.2659 819.1932 819.1676 819.1606 819.1708
#> Aug 1990 819.1793 819.1790 819.1647 819.1086 819.0976 819.0937 819.0987
#> Sep 1990 818.9554 818.9552 818.9248 818.8849 818.8869 818.8859 818.8863
#> Oct 1990 819.0507 819.0506 819.0169 818.9841 818.9923 818.9929 818.9908
#> Nov 1990 819.6803 819.6802 819.6612 819.6180 819.6219 819.6221 819.6212
#> Dec 1990 820.8386 820.8385 820.8560 820.7811 820.7674 820.7646 820.7693
#> Jan 1991 822.7397 822.7395 822.8141 822.6871 822.6428 822.6343 822.6492
#> Feb 1991 825.3165 825.3161 825.4604 825.2656 825.1821 825.1662 825.1943
#> Mar 1991 828.2604 828.2599 828.4789 828.2105 828.0836 828.0593 828.1022
#> Apr 1991 831.6236 831.6229 831.9123 831.5752 831.4067 831.3743 831.4313
#> May 1991 835.4132 835.4124 835.7528 835.3669 835.1661 835.1273 835.1954
#> Jun 1991 839.2317 839.2308 839.5982 839.1903 838.9705 838.9278 839.0026
#> Jul 1991 843.0791 843.0781 843.4496 843.0463 842.8212 842.7772 842.8540
#> Aug 1991 846.9646 846.9636 847.3172 846.9426 846.7254 846.6828 846.7570
#> Sep 1991 850.7075 850.7066 851.0243 850.7010 850.5035 850.4646 850.5323
#> Oct 1991 854.2046 854.2038 854.4684 854.2139 854.0474 854.0146 854.0716
#> Nov 1991 857.1212 857.1205 857.3191 857.1415 857.0150 856.9900 857.0333
#> Dec 1991 859.3258 859.3253 859.4547 859.3528 859.2692 859.2528 859.2814
#> Jan 1992 861.1262 861.1259 861.1903 861.1533 861.1108 861.1026 861.1170
#> Feb 1992 862.6580 862.6579 862.6690 862.6793 862.6711 862.6696 862.6723
#> Mar 1992 864.2028 864.2029 864.1774 864.2143 864.2301 864.2334 864.2278
#> Apr 1992 866.0278 866.0280 865.9837 866.0253 866.0548 866.0607 866.0506
#> May 1992 868.2123 868.2125 868.1621 868.1915 868.2271 868.2343 868.2221
#> Jun 1992 870.6144 870.6147 870.5648 870.5794 870.6156 870.6229 870.6106
#> Jul 1992 873.0211 873.0214 872.9770 872.9801 873.0122 873.0187 873.0078
#> Aug 1992 875.5523 875.5524 875.5219 875.5136 875.5356 875.5399 875.5326
#> Sep 1992 878.5313 878.5314 878.5177 878.4996 878.5091 878.5110 878.5078
#> Oct 1992 881.7575 881.7575 881.7612 881.7366 881.7335 881.7328 881.7339
#> Nov 1992 884.7647 884.7646 884.7841 884.7585 884.7444 884.7417 884.7463
#> Dec 1992 887.3709 887.3707 887.4007 887.3814 887.3607 887.3567 887.3633
#> Jan 1993 889.3534 889.3533 889.3838 889.3775 889.3568 889.3529 889.3594
#> Feb 1993 890.5320 890.5319 890.5545 890.5666 890.5520 890.5493 890.5538
#> Mar 1993 890.9291 890.9290 890.9382 890.9717 890.9670 890.9664 890.9675
#> Apr 1993 890.6228 890.6228 890.6126 890.6684 890.6763 890.6780 890.6751
#> May 1993 889.6756 889.6757 889.6458 889.7191 889.7389 889.7429 889.7362
#> Jun 1993 888.6101 888.6102 888.5681 888.6482 888.6756 888.6811 888.6720
#> Jul 1993 887.8891 887.8892 887.8440 887.9181 887.9477 887.9537 887.9440
#> Aug 1993 887.8309 887.8311 887.7874 887.8446 887.8741 887.8804 887.8706
#> Sep 1993 888.6963 888.6965 888.6603 888.6968 888.7234 888.7296 888.7204
#> Oct 1993 890.4100 890.4102 890.3882 890.4063 890.4266 890.4320 890.4244
#> Nov 1993 892.9619 892.9621 892.9628 892.9722 892.9807 892.9841 892.9800
#> Dec 1993 896.6472 896.6473 896.6765 896.6908 896.6824 896.6825 896.6838
#> Jan 1994 901.2825 901.2824 901.3420 901.3749 901.3459 901.3418 901.3499
#> Feb 1994 906.5755 906.5753 906.6640 906.7253 906.6742 906.6653 906.6811
#> Mar 1994 912.3066 912.3062 912.4173 912.5117 912.4405 912.4271 912.4502
#> Apr 1994 917.9096 917.9091 918.0335 918.1594 918.0725 918.0554 918.0845
#> May 1994 922.8010 922.8003 922.9286 923.0839 922.9856 922.9655 922.9994
#> Jun 1994 926.8687 926.8680 926.9925 927.1695 927.0647 927.0425 927.0798
#> Jul 1994 930.3312 930.3304 930.4432 930.6299 930.5252 930.5022 930.5409
#> Aug 1994 933.3008 933.3000 933.3971 933.5834 933.4844 933.4620 933.5000
#> Sep 1994 935.5110 935.5102 935.5929 935.7668 935.6773 935.6562 935.6921
#> Oct 1994 937.1353 937.1345 937.2069 937.3607 937.2831 937.2640 937.2966
#> Nov 1994 938.7028 938.7021 938.7661 938.8964 938.8335 938.8173 938.8450
#> Dec 1994 940.4761 940.4755 940.5276 940.6347 940.5906 940.5784 940.5990
#> Jan 1995 942.3831 942.3827 942.4199 942.5088 942.4854 942.4778 942.4901
#> Feb 1995 944.3808 944.3805 944.3989 944.4767 944.4751 944.4724 944.4760
#> Mar 1995 946.3838 946.3837 946.3780 946.4508 946.4714 946.4737 946.4684
#> Apr 1995 948.4617 948.4618 948.4312 948.5026 948.5427 948.5496 948.5363
#> May 1995 950.7933 950.7935 950.7407 950.8088 950.8640 950.8750 950.8551
#> Jun 1995 953.3445 953.3448 953.2695 953.3314 953.3987 953.4132 953.3879
#> Jul 1995 955.9269 955.9273 955.8313 955.8831 955.9592 955.9768 955.9477
#> Aug 1995 958.5147 958.5151 958.4027 958.4419 958.5242 958.5441 958.5125
#> Sep 1995 960.8339 960.8343 960.7091 960.7368 960.8216 960.8422 960.8106
#> Oct 1995 962.7960 962.7964 962.6606 962.6803 962.7625 962.7824 962.7528
#> Nov 1995 964.5669 964.5672 964.4313 964.4493 964.5220 964.5395 964.5138
#> Dec 1995 966.1092 966.1094 965.9958 966.0189 966.0736 966.0874 966.0674
#> Jan 1996 967.2355 967.2357 967.1761 967.2107 967.2380 967.2467 967.2341
#> Feb 1996 967.9549 967.9550 967.9815 968.0306 968.0246 968.0271 968.0231
#> Mar 1996 968.0288 968.0289 968.1662 968.2324 968.1900 968.1861 968.1911
#> Apr 1996 967.4695 967.4695 967.7286 967.8161 967.7375 967.7272 967.7411
#> May 1996 966.7627 966.7627 967.1398 967.2515 967.1398 967.1238 967.1458
#> Jun 1996 966.1707 966.1707 966.6481 966.7782 966.6408 966.6206 966.6489
#> Jul 1996 965.7805 965.7805 966.3326 966.4690 966.3150 966.2924 966.3251
#> Aug 1996 965.6987 965.6988 966.2922 966.4164 966.2571 966.2339 966.2689
#> Sep 1996 966.2841 966.2842 966.8811 966.9756 966.8225 966.8008 966.8356
#> Oct 1996 967.7728 967.7731 968.3340 968.3862 968.2508 968.2327 968.2646
#> Nov 1996 970.0036 970.0039 970.4889 970.4913 970.3837 970.3714 970.3977
#> Dec 1996 972.6587 972.6591 973.0391 972.9916 972.9169 972.9115 972.9306
#> Jan 1997 975.7203 975.7206 975.9802 975.8891 975.8480 975.8494 975.8610
#> Feb 1997 979.1290 979.1293 979.2667 979.1448 979.1329 979.1404 979.1448
#> Mar 1997 982.7606 982.7609 982.7917 982.6547 982.6636 982.6753 982.6741
#> Apr 1997 986.4767 986.4768 986.4309 986.2913 986.3119 986.3258 986.3212
#> May 1997 989.8644 989.8643 989.7728 989.6408 989.6675 989.6819 989.6758
#> Jun 1997 992.6708 992.6705 992.5649 992.4477 992.4768 992.4899 992.4847
#> Jul 1997 994.8183 994.8179 994.7215 994.6227 994.6530 994.6640 994.6615
#> Aug 1997 996.2659 996.2652 996.1886 996.1140 996.1436 996.1527 996.1539
#> Sep 1997 997.0778 997.0768 997.0204 996.9690 997.0001 997.0084 997.0130
#> Oct 1997 997.6094 997.6082 997.5710 997.5322 997.5716 997.5805 997.5870
#> Nov 1997 998.0030 998.0017 997.9825 997.9345 997.9928 998.0035 998.0098
#> Dec 1997 998.4989 998.4977 998.4893 998.4064 998.4959 998.5086 998.5125
#> Jan 1998 999.4910 999.4902 999.4791 999.3380 999.4694 999.4844 999.4833
#> Feb 1998 1001.1445 1001.1443 1001.1137 1000.9028 1001.0800 1001.0967 1001.0885
#> Mar 1998 1003.6501 1003.6506 1003.5869 1003.3062 1003.5265 1003.5436 1003.5274
#> Apr 1998 1007.1129 1007.1142 1007.0088 1006.6662 1006.9243 1006.9405 1006.9165
#> May 1998 1011.3353 1011.3372 1011.1927 1010.7955 1011.0840 1011.0985 1011.0677
#> Jun 1998 1015.7961 1015.7985 1015.6278 1015.1886 1015.4969 1015.5089 1015.4739
#> Jul 1998 1020.2196 1020.2222 1020.0445 1019.5815 1019.8969 1019.9063 1019.8704
#> Aug 1998 1024.0746 1024.0772 1023.9126 1023.4459 1023.7559 1023.7630 1023.7297
#> Sep 1998 1027.2206 1027.2230 1027.0920 1026.6464 1026.9375 1026.9435 1026.9162
#> Oct 1998 1029.5471 1029.5488 1029.4640 1029.0613 1029.3233 1029.3299 1029.3113
#> Nov 1998 1031.3081 1031.3090 1031.2755 1030.9354 1031.1596 1031.1685 1031.1602
#> Dec 1998 1032.9327 1032.9326 1032.9472 1032.6831 1032.8641 1032.8763 1032.8784
#> Jan 1999 1035.0123 1035.0113 1035.0602 1034.8783 1035.0138 1035.0299 1035.0403
#> Feb 1999 1037.8394 1037.8376 1037.9062 1037.8022 1037.8939 1037.9132 1037.9295
#> Mar 1999 1041.6955 1041.6932 1041.7654 1041.7234 1041.7791 1041.8003 1041.8194
#> Apr 1999 1046.5680 1046.5656 1046.6266 1046.6235 1046.6540 1046.6754 1046.6940
#> May 1999 1052.0525 1052.0501 1052.0878 1052.1073 1052.1215 1052.1409 1052.1569
#> Jun 1999 1057.9282 1057.9261 1057.9349 1057.9669 1057.9698 1057.9859 1057.9980
#> Jul 1999 1063.7488 1063.7472 1063.7267 1063.7673 1063.7603 1063.7706 1063.7779
#> Aug 1999 1069.0488 1069.0478 1069.0043 1069.0496 1069.0371 1069.0417 1069.0423
#> Sep 1999 1073.4685 1073.4680 1073.4085 1073.4476 1073.4391 1073.4397 1073.4323
#> Oct 1999 1076.6719 1076.6719 1076.6042 1076.6293 1076.6305 1076.6304 1076.6169
#> Nov 1999 1078.6466 1078.6467 1078.5783 1078.5889 1078.5993 1078.6036 1078.5885
#> Dec 1999 1079.7255 1079.7253 1079.6605 1079.6617 1079.6770 1079.6927 1079.6810
#> Jan 2000 1079.8631 1079.8618 1079.8037 1079.8098 1079.8179 1079.8524 1079.8498
#> Feb 2000 1079.2906 1079.2878 1079.2358 1079.2586 1079.2507 1079.3101 1079.3220
#> Mar 2000 1078.3172 1078.3123 1078.2636 1078.3060 1078.2811 1078.3696 1078.3996
#> Apr 2000 1077.3081 1077.3007 1077.2496 1077.3108 1077.2714 1077.3902 1077.4396
#> May 2000 1076.8066 1076.7968 1076.7392 1076.8136 1076.7654 1076.9120 1076.9795
#> Jun 2000 1077.0606 1077.0487 1076.9805 1077.0581 1077.0110 1077.1797 1077.2617
#> Jul 2000 1078.3698 1078.3563 1078.2744 1078.3383 1078.3071 1078.4910 1078.5812
#> Aug 2000 1080.7325 1080.7182 1080.6229 1080.6530 1080.6529 1080.8442 1080.9329
#> Sep 2000 1084.2278 1084.2136 1084.1097 1084.0925 1084.1334 1084.3242 1084.4023
#> Oct 2000 1088.6576 1088.6445 1088.5431 1088.4735 1088.5567 1088.7392 1088.8013
#> Nov 2000 1093.7232 1093.7120 1093.6258 1093.5093 1093.6267 1093.7936 1093.8376
#> Dec 2000 1098.9411 1098.9324 1098.8723 1098.7217 1098.8598 1099.0053 1099.0305
#> Jan 2001 1103.8319 1103.8258 1103.8019 1103.6213 1103.7750 1103.8941 1103.9028
#> Feb 2001 1108.3192 1108.3155 1108.3347 1108.1352 1108.2925 1108.3821 1108.3800
#> Mar 2001 1112.6090 1112.6073 1112.6693 1112.4781 1112.6128 1112.6724 1112.6669
#> Apr 2001 1116.9053 1116.9050 1117.0038 1116.8647 1116.9394 1116.9707 1116.9701
#> May 2001 1121.4593 1121.4595 1121.5870 1121.5432 1121.5183 1121.5231 1121.5339
#> Jun 2001 1126.5714 1126.5716 1126.7154 1126.7982 1126.6440 1126.6266 1126.6510
#> Jul 2001 1132.3367 1132.3362 1132.4854 1132.7129 1132.4144 1132.3835 1132.4213
#> Aug 2001 1138.8955 1138.8940 1139.0367 1139.4125 1138.9721 1138.9409 1138.9891
#> Sep 2001 1146.1818 1146.1796 1146.3058 1146.8166 1146.2519 1146.2318 1146.2857
#> Oct 2001 1154.2478 1154.2456 1154.3487 1154.9665 1154.3096 1154.3100 1154.3604
#> Nov 2001 1163.0130 1163.0115 1163.0870 1163.7698 1163.0664 1163.0928 1163.1293
#> Dec 2001 1171.9746 1171.9745 1172.0231 1172.7221 1172.0222 1172.0746 1172.0884
#> Jan 2002 1180.6207 1180.6224 1180.6492 1181.3178 1180.6675 1180.7405 1180.7283
#> Feb 2002 1188.8503 1188.8538 1188.8618 1189.4502 1188.8980 1188.9824 1188.9450
#> Mar 2002 1196.5196 1196.5245 1196.5171 1196.9846 1196.5692 1196.6532 1196.5958
#> Apr 2002 1203.5177 1203.5232 1203.5081 1203.8248 1203.5692 1203.6412 1203.5721
#> May 2002 1209.8767 1209.8816 1209.8644 1210.0154 1209.9267 1209.9731 1209.9016
#> Jun 2002 1215.7258 1215.7289 1215.7148 1215.7038 1215.7683 1215.7844 1215.7180
#> Jul 2002 1221.5293 1221.5298 1221.5222 1221.3738 1221.5609 1221.5534 1221.4999
#> Aug 2002 1227.5890 1227.5871 1227.5930 1227.3511 1227.6133 1227.5909 1227.5664
#> Sep 2002 1234.1074 1234.1040 1234.1285 1233.8464 1234.1338 1234.1099 1234.1234
#> Oct 2002 1240.9093 1240.9063 1240.9457 1240.6684 1240.9454 1240.9426 1240.9855
#> Nov 2002 1247.5491 1247.5483 1247.5871 1247.3435 1247.5952 1247.6357 1247.6810
#> Dec 2002 1253.7103 1253.7126 1253.7307 1253.5345 1253.7613 1253.8587 1253.8771
#> Jan 2003 1259.7679 1259.7733 1259.7507 1259.6065 1259.8153 1259.9724 1259.9315
#> Feb 2003 1266.0180 1266.0257 1265.9497 1265.8662 1266.0547 1266.2640 1266.1312
#> Mar 2003 1272.6067 1272.6154 1272.4848 1272.4565 1272.6276 1272.8712 1272.6205
#> Apr 2003 1279.6474 1279.6561 1279.4734 1279.4733 1279.6381 1279.8897 1279.5079
#> May 2003 1286.9786 1286.9851 1286.7610 1286.7423 1286.9134 1287.1329 1286.6233
#> Jun 2003 1294.1715 1294.1739 1293.9310 1293.8600 1294.0422 1294.2064 1293.5892
#> Jul 2003 1300.8417 1300.8386 1300.6069 1300.4687 1300.6630 1300.7715 1300.0852
#> Aug 2003 1306.9182 1306.9109 1306.7174 1306.5153 1306.7213 1306.7908 1306.0778
#> Sep 2003 1312.5316 1312.5224 1312.3906 1312.1470 1312.3603 1312.4161 1311.7203
#> Oct 2003 1317.7859 1317.7774 1317.7224 1317.4765 1317.6836 1317.7515 1317.1147
#> Nov 2003 1322.7757 1322.7700 1322.7994 1322.5958 1322.7806 1322.8825 1322.3397
#> Dec 2003 1328.0013 1327.9997 1328.1097 1327.9882 1328.1371 1328.2882 1327.8575
#> Jan 2004 1333.9859 1333.9888 1334.1602 1334.1440 1334.2511 1334.4565 1334.1398
#> Feb 2004 1340.5878 1340.5946 1340.8003 1340.8880 1340.9558 1341.2073 1340.9917
#> Mar 2004 1347.4266 1347.4357 1347.6449 1347.8137 1347.8481 1348.1251 1347.9872
#> Apr 2004 1354.1639 1354.1756 1354.3360 1354.5453 1354.5603 1354.8295 1354.7416
#> May 2004 1361.0136 1361.0284 1361.0946 1361.2863 1361.2978 1361.5383 1361.4737
#> Jun 2004 1368.2608 1368.2788 1368.2428 1368.3606 1368.3733 1368.5766 1368.5175
#> Jul 2004 1375.8103 1375.8325 1375.7119 1375.7197 1375.7434 1375.8877 1375.8181
#> Aug 2004 1383.3808 1383.4087 1383.2467 1383.1272 1383.1738 1383.2378 1383.1627
#> Sep 2004 1390.2057 1390.2365 1390.0850 1389.8414 1389.9213 1389.8983 1389.8302
#> Oct 2004 1395.5547 1395.5820 1395.4938 1395.1516 1395.2646 1395.1687 1395.1363
#> Nov 2004 1398.9704 1398.9836 1399.0086 1398.6172 1398.7447 1398.5902 1398.6300
#> Dec 2004 1400.5447 1400.5316 1400.7045 1400.3226 1400.4375 1400.2364 1400.3797
#> Jan 2005 1400.5696 1400.5191 1400.8505 1400.5284 1400.6051 1400.3638 1400.6215
#> Feb 2005 1399.3963 1399.3013 1399.7730 1399.5389 1399.5576 1399.2731 1399.6421
#> Mar 2005 1397.3098 1397.1651 1397.7323 1397.5885 1397.5380 1397.2002 1397.6624
#> Apr 2005 1394.5815 1394.3929 1394.9673 1394.8786 1394.7643 1394.3565 1394.8827
#> May 2005 1391.1602 1390.9382 1391.4367 1391.3342 1391.1640 1390.6542 1391.2131
#> Jun 2005 1387.5287 1387.2896 1387.6394 1387.4761 1387.2902 1386.6655 1387.2258
#> Jul 2005 1384.1331 1383.8983 1384.0554 1383.8180 1383.6817 1382.9989 1383.5254
#> Aug 2005 1381.3151 1381.1072 1381.0733 1380.7802 1380.7453 1380.1072 1380.5665
#> Sep 2005 1379.3875 1379.2286 1379.0615 1378.7534 1378.8210 1378.3499 1378.7151
#> Oct 2005 1378.8981 1378.8040 1378.6087 1378.3370 1378.4571 1378.2347 1378.4814
#> Nov 2005 1380.4607 1380.4436 1380.3463 1380.1571 1380.2457 1380.3372 1380.4506
#> Dec 2005 1383.9537 1384.0211 1384.1352 1384.0589 1384.0197 1384.4738 1384.4546
#> Jan 2006 1388.5733 1388.7259 1389.1288 1389.1745 1388.9175 1389.7564 1389.6257
#> Feb 2006 1393.6792 1393.9110 1394.6200 1394.7656 1394.2326 1395.4454 1395.2364
#> Mar 2006 1398.9748 1399.2650 1400.2328 1400.4299 1399.6089 1401.1508 1400.8995
#> Apr 2006 1404.1084 1404.4224 1405.6197 1405.8230 1404.7262 1406.5473 1406.2825
#> May 2006 1408.9949 1409.3149 1410.6746 1410.8890 1409.5834 1411.6881 1411.4268
#> Jun 2006 1413.5056 1413.8310 1415.1888 1415.3739 1413.9484 1416.2515 1416.0017
#> Jul 2006 1417.2476 1417.5889 1418.6822 1418.7225 1417.3567 1419.7038 1419.4799
#> Aug 2006 1420.3395 1420.7151 1421.2593 1420.9571 1419.8574 1422.0123 1421.8867
#> Sep 2006 1422.8627 1423.2857 1423.0371 1422.1780 1421.5041 1423.1711 1423.2058
#> Oct 2006 1425.3391 1425.8145 1424.6332 1423.0436 1422.8732 1423.7684 1423.9980
#> Nov 2006 1428.5555 1429.0747 1426.9520 1424.5459 1424.8657 1424.7527 1425.1744
#> Dec 2006 1433.1180 1433.6596 1430.7160 1427.5148 1428.2331 1426.9778 1427.5525
#> Jan 2007 1439.2947 1439.8275 1436.2931 1432.4250 1433.3910 1430.9853 1431.6501
#> Feb 2007 1447.1189 1447.6064 1443.7730 1439.4454 1440.4857 1437.0501 1437.7284
#> Mar 2007 1456.2355 1456.6176 1452.7936 1448.2627 1449.2197 1444.9862 1445.6011
#> Apr 2007 1466.5114 1466.7478 1463.1214 1458.6455 1459.4110 1454.6874 1455.1794
#> May 2007 1477.2476 1477.3198 1474.0585 1469.7798 1470.3010 1465.4314 1465.7631
#> Jun 2007 1487.7777 1487.7015 1484.9406 1481.0207 1481.2474 1476.6365 1476.7793
#> Jul 2007 1497.2575 1497.0771 1494.9539 1491.5229 1491.3485 1487.4114 1487.3592
#> Aug 2007 1505.1526 1504.9166 1503.5070 1500.7025 1500.0592 1497.0939 1496.8302
#> Sep 2007 1511.4341 1511.2097 1510.4832 1508.4193 1507.4246 1505.5919 1505.1580
#> Oct 2007 1515.8700 1515.7363 1515.5440 1514.2815 1513.2726 1512.5943 1512.1159
#> Nov 2007 1518.2826 1518.3192 1518.4276 1517.9548 1517.4165 1517.8055 1517.4774
#> Dec 2007 1518.7789 1519.0425 1519.1970 1519.4400 1519.8889 1521.1331 1521.1698
#> Jan 2008 1517.7449 1518.2533 1518.2367 1519.0784 1520.9448 1522.7575 1523.3404
#> Feb 2008 1515.7142 1516.4395 1516.1204 1517.4295 1520.9589 1523.0481 1524.2798
#> Mar 2008 1513.2732 1514.1611 1513.4762 1515.1081 1520.2974 1522.4349 1524.3175
#> Apr 2008 1511.1960 1512.1704 1511.0186 1512.8317 1519.4430 1521.4931 1523.9242
#> May 2008 1510.4334 1511.3999 1509.7122 1511.3976 1519.0176 1520.8851 1523.6816
#> Jun 2008 1511.3294 1512.1694 1510.0192 1511.2653 1519.2649 1520.8735 1523.8502
#> Jul 2008 1514.3351 1514.9387 1512.5099 1513.1687 1520.9449 1522.2274 1525.2275
#> Aug 2008 1519.7718 1520.0647 1517.6469 1517.7016 1524.7109 1525.6445 1528.5570
#> Sep 2008 1527.3066 1527.2510 1525.1910 1524.7860 1530.5882 1531.2652 1533.8942
#> Oct 2008 1536.4956 1536.1006 1534.7336 1534.1338 1538.4749 1539.0910 1541.1946
#> Nov 2008 1546.3904 1545.7054 1545.2883 1544.8213 1547.6701 1548.4544 1549.7946
#> Dec 2008 1555.9624 1555.0672 1555.7247 1555.7121 1557.2568 1558.4227 1558.8172
#> Jan 2009 1564.5939 1563.5798 1565.2657 1565.9449 1566.5528 1568.2479 1567.6102
#> Feb 2009 1571.6078 1570.5616 1573.0517 1574.5093 1574.6424 1576.9117 1575.2693
#> Mar 2009 1576.7659 1575.7188 1578.6533 1580.7884 1580.8945 1583.6698 1581.1565
#> Apr 2009 1579.8574 1578.8499 1582.0334 1584.5396 1584.9336 1588.0466 1584.8769
#> May 2009 1580.8872 1579.9501 1583.1538 1585.9012 1586.6680 1589.8941 1586.3201
#> Jun 2009 1580.2603 1579.4246 1582.2637 1585.0432 1586.3481 1589.4745 1585.7375
#> Jul 2009 1578.6840 1577.9729 1579.9722 1582.3517 1584.1794 1586.9627 1583.2850
#> Aug 2009 1576.7699 1576.2059 1576.8248 1578.2862 1580.4071 1582.7113 1579.2776
#> Sep 2009 1575.2825 1574.8909 1573.6344 1573.5872 1575.5696 1577.4086 1574.4811
#> Oct 2009 1574.7125 1574.4968 1571.0124 1568.8930 1570.0869 1571.5866 1569.4250
#> Nov 2009 1575.3713 1575.3116 1569.4359 1564.7995 1564.4453 1565.8141 1564.6165
#> Dec 2009 1577.1758 1577.2351 1568.9879 1561.5584 1558.9294 1560.4351 1560.3108
#> Jan 2010 1580.0238 1580.1520 1569.6943 1559.3705 1553.8977 1555.8214 1556.7842
#> Feb 2010 NaN 1583.9650 1571.5526 1558.3984 1549.7645 1552.3570 1554.3344
#> Mar 2010 NaN NaN 1574.4822 1558.7010 1546.8841 1550.3246 1553.1840
#> Apr 2010 NaN NaN NaN 1560.0763 1545.3434 1549.7101 1553.2999
#> May 2010 NaN NaN NaN NaN 1545.2905 1550.5586 1554.7539
#> Jun 2010 NaN NaN NaN NaN NaN 1552.7414 1557.4457
#> Jul 2010 NaN NaN NaN NaN NaN NaN 1561.1789
#> Aug 2010 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2010 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2010 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2010 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2010 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2011 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2011 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2011 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2011 NaN NaN NaN NaN NaN NaN NaN
#> May 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2011 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2011 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2011 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 8 Series 9 Series 10 Series 11 Series 12 Series 13 Series 14
#> Apr 1982 482.7394 482.7383 482.7312 482.7400 482.7481 482.7465 482.7458
#> May 1982 483.8297 483.8286 483.8207 483.8302 483.8385 483.8363 483.8357
#> Jun 1982 485.2223 485.2211 485.2108 485.2224 485.2316 485.2283 485.2279
#> Jul 1982 486.1555 486.1545 486.1455 486.1555 486.1631 486.1602 486.1600
#> Aug 1982 487.2986 487.2975 487.2885 487.2984 487.3055 487.3024 487.3023
#> Sep 1982 488.6720 488.6710 488.6615 488.6717 488.6787 488.6752 488.6753
#> Oct 1982 490.2727 490.2717 490.2624 490.2723 490.2791 490.2755 490.2756
#> Nov 1982 491.9861 491.9853 491.9778 491.9859 491.9917 491.9887 491.9887
#> Dec 1982 493.7828 493.7821 493.7765 493.7827 493.7879 493.7854 493.7854
#> Jan 1983 495.5381 495.5377 495.5344 495.5383 495.5426 495.5410 495.5407
#> Feb 1983 497.3060 497.3057 497.3050 497.3065 497.3097 497.3091 497.3087
#> Mar 1983 499.1563 499.1562 499.1579 499.1570 499.1590 499.1595 499.1588
#> Apr 1983 501.0563 501.0565 501.0607 501.0573 501.0577 501.0592 501.0585
#> May 1983 503.1618 503.1621 503.1684 503.1628 503.1616 503.1639 503.1632
#> Jun 1983 505.5381 505.5387 505.5464 505.5391 505.5364 505.5394 505.5387
#> Jul 1983 508.1997 508.2003 508.2083 508.2005 508.1971 508.2003 508.1997
#> Aug 1983 511.1189 511.1194 511.1255 511.1195 511.1166 511.1193 511.1189
#> Sep 1983 514.3549 514.3551 514.3576 514.3554 514.3543 514.3560 514.3557
#> Oct 1983 518.0141 518.0137 518.0106 518.0143 518.0167 518.0166 518.0164
#> Nov 1983 522.1702 522.1691 522.1593 522.1701 522.1770 522.1748 522.1746
#> Dec 1983 526.7600 526.7581 526.7418 526.7597 526.7713 526.7669 526.7667
#> Jan 1984 531.7055 531.7030 531.6807 531.7051 531.7213 531.7148 531.7147
#> Feb 1984 536.7961 536.7930 536.7660 536.7956 536.8155 536.8074 536.8072
#> Mar 1984 541.7924 541.7890 541.7591 541.7918 541.8140 541.8048 541.8046
#> Apr 1984 546.6393 546.6358 546.6047 546.6386 546.6617 546.6520 546.6518
#> May 1984 551.3487 551.3453 551.3148 551.3480 551.3703 551.3606 551.3605
#> Jun 1984 555.8749 555.8718 555.8441 555.8741 555.8941 555.8851 555.8851
#> Jul 1984 560.3879 560.3854 560.3626 560.3871 560.4032 560.3956 560.3957
#> Aug 1984 565.1818 565.1801 565.1642 565.1812 565.1919 565.1866 565.1868
#> Sep 1984 570.3390 570.3383 570.3309 570.3386 570.3431 570.3407 570.3408
#> Oct 1984 576.1261 576.1263 576.1273 576.1260 576.1245 576.1250 576.1251
#> Nov 1984 582.6120 582.6129 582.6212 582.6122 582.6057 582.6088 582.6088
#> Dec 1984 589.7750 589.7765 589.7900 589.7755 589.7655 589.7706 589.7705
#> Jan 1985 597.6172 597.6190 597.6356 597.6180 597.6062 597.6125 597.6123
#> Feb 1985 605.9078 605.9097 605.9278 605.9088 605.8964 605.9034 605.9030
#> Mar 1985 614.2874 614.2892 614.3079 614.2884 614.2762 614.2835 614.2830
#> Apr 1985 622.4630 622.4648 622.4834 622.4642 622.4526 622.4599 622.4593
#> May 1985 630.0424 630.0441 630.0621 630.0438 630.0332 630.0406 630.0398
#> Jun 1985 636.4418 636.4433 636.4606 636.4433 636.4338 636.4410 636.4401
#> Jul 1985 641.3526 641.3540 641.3696 641.3541 641.3456 641.3523 641.3514
#> Aug 1985 644.5488 644.5500 644.5636 644.5499 644.5420 644.5479 644.5472
#> Sep 1985 646.3195 646.3206 646.3312 646.3201 646.3124 646.3170 646.3167
#> Oct 1985 647.0353 647.0362 647.0428 647.0350 647.0274 647.0302 647.0306
#> Nov 1985 647.3704 647.3712 647.3735 647.3691 647.3612 647.3619 647.3632
#> Dec 1985 648.0990 648.0997 648.0978 648.0966 648.0882 648.0868 648.0889
#> Jan 1986 649.6847 649.6854 649.6795 649.6813 649.6726 649.6692 649.6721
#> Feb 1986 652.2850 652.2855 652.2752 652.2807 652.2725 652.2671 652.2706
#> Mar 1986 656.0140 656.0140 655.9979 656.0090 656.0033 655.9954 655.9994
#> Apr 1986 660.8888 660.8880 660.8644 660.8833 660.8827 660.8717 660.8759
#> May 1986 666.6827 666.6810 666.6493 666.6771 666.6830 666.6689 666.6730
#> Jun 1986 673.1190 673.1163 673.0762 673.1134 673.1271 673.1097 673.1136
#> Jul 1986 679.8878 679.8841 679.8363 679.8825 679.9042 679.8839 679.8874
#> Aug 1986 686.4214 686.4168 686.3634 686.4165 686.4451 686.4229 686.4258
#> Sep 1986 692.3420 692.3367 692.2799 692.3376 692.3718 692.3483 692.3507
#> Oct 1986 697.4523 697.4467 697.3894 697.4486 697.4858 697.4623 697.4642
#> Nov 1986 701.4006 701.3952 701.3410 701.3976 701.4350 701.4129 701.4141
#> Dec 1986 704.2514 704.2464 704.1984 704.2491 704.2837 704.2642 704.2650
#> Jan 1987 706.1852 706.1811 706.1427 706.1837 706.2127 706.1970 706.1975
#> Feb 1987 707.4835 707.4806 707.4537 707.4827 707.5043 707.4933 707.4933
#> Mar 1987 708.7230 708.7212 708.7065 708.7229 708.7364 708.7304 708.7301
#> Apr 1987 710.3099 710.3093 710.3062 710.3105 710.3161 710.3149 710.3143
#> May 1987 712.2797 712.2800 712.2868 712.2809 712.2797 712.2826 712.2817
#> Jun 1987 714.8825 714.8835 714.8968 714.8840 714.8782 714.8838 714.8828
#> Jul 1987 718.2525 718.2537 718.2692 718.2540 718.2463 718.2528 718.2518
#> Aug 1987 722.4179 722.4190 722.4322 722.4192 722.4125 722.4181 722.4173
#> Sep 1987 727.4178 727.4184 727.4265 727.4187 727.4150 727.4185 727.4179
#> Oct 1987 732.8905 732.8906 732.8935 732.8910 732.8904 732.8917 732.8913
#> Nov 1987 738.5112 738.5109 738.5093 738.5113 738.5135 738.5130 738.5128
#> Dec 1987 743.7695 743.7689 743.7642 743.7694 743.7735 743.7717 743.7716
#> Jan 1988 748.1294 748.1287 748.1223 748.1293 748.1347 748.1321 748.1321
#> Feb 1988 751.7008 751.7000 751.6931 751.7007 751.7067 751.7040 751.7039
#> Mar 1988 754.7555 754.7548 754.7485 754.7555 754.7613 754.7588 754.7586
#> Apr 1988 757.4130 757.4125 757.4082 757.4131 757.4173 757.4156 757.4155
#> May 1988 759.7879 759.7877 759.7856 759.7880 759.7902 759.7894 759.7893
#> Jun 1988 762.1224 762.1224 762.1221 762.1224 762.1229 762.1227 762.1227
#> Jul 1988 764.4330 764.4331 764.4330 764.4329 764.4326 764.4325 764.4326
#> Aug 1988 766.7972 766.7972 766.7953 766.7969 766.7972 766.7964 766.7966
#> Sep 1988 769.1619 769.1616 769.1572 769.1613 769.1629 769.1610 769.1614
#> Oct 1988 771.4361 771.4356 771.4290 771.4353 771.4384 771.4355 771.4360
#> Nov 1988 773.8520 773.8513 773.8430 773.8512 773.8555 773.8520 773.8525
#> Dec 1988 776.5389 776.5381 776.5293 776.5381 776.5431 776.5393 776.5398
#> Jan 1989 779.5289 779.5281 779.5202 779.5283 779.5332 779.5298 779.5301
#> Feb 1989 782.9456 782.9450 782.9393 782.9452 782.9491 782.9467 782.9469
#> Mar 1989 786.7908 786.7906 786.7889 786.7907 786.7922 786.7915 786.7915
#> Apr 1989 790.7183 790.7185 790.7218 790.7186 790.7171 790.7184 790.7182
#> May 1989 794.8019 794.8025 794.8100 794.8025 794.7983 794.8014 794.8010
#> Jun 1989 799.1489 799.1499 799.1603 799.1497 799.1433 799.1476 799.1472
#> Jul 1989 803.4509 803.4521 803.4643 803.4517 803.4437 803.4488 803.4484
#> Aug 1989 807.6288 807.6301 807.6429 807.6295 807.6207 807.6259 807.6256
#> Sep 1989 811.3444 811.3455 811.3559 811.3448 811.3369 811.3411 811.3410
#> Oct 1989 814.2977 814.2982 814.3017 814.2975 814.2935 814.2949 814.2951
#> Nov 1989 816.4661 816.4657 816.4588 816.4652 816.4675 816.4645 816.4652
#> Dec 1989 817.7967 817.7952 817.7771 817.7949 817.8040 817.7964 817.7975
#> Jan 1990 818.4651 818.4627 818.4341 818.4625 818.4779 818.4659 818.4675
#> Feb 1990 818.8368 818.8336 818.7974 818.8335 818.8532 818.8381 818.8401
#> Mar 1990 818.9434 818.9400 818.9002 818.9398 818.9612 818.9445 818.9467
#> Apr 1990 818.9471 818.9438 818.9038 818.9433 818.9640 818.9473 818.9497
#> May 1990 818.9965 818.9934 818.9562 818.9928 819.0114 818.9958 818.9981
#> Jun 1990 819.1103 819.1077 819.0761 819.1069 819.1220 819.1087 819.1108
#> Jul 1990 819.1752 819.1735 819.1512 819.1726 819.1821 819.1726 819.1744
#> Aug 1990 819.1010 819.1004 819.0892 819.0993 819.1024 819.0975 819.0988
#> Sep 1990 818.8866 818.8868 818.8858 818.8858 818.8832 818.8826 818.8833
#> Oct 1990 818.9902 818.9908 818.9951 818.9899 818.9849 818.9865 818.9869
#> Nov 1990 819.6209 819.6212 819.6232 819.6207 819.6180 819.6187 819.6189
#> Dec 1990 820.7713 820.7704 820.7601 820.7704 820.7761 820.7717 820.7723
#> Jan 1991 822.6553 822.6523 822.6199 822.6529 822.6730 822.6594 822.6607
#> Feb 1991 825.2057 825.2000 825.1390 825.2013 825.2396 825.2141 825.2165
#> Mar 1991 828.1196 828.1108 828.0178 828.1129 828.1712 828.1324 828.1360
#> Apr 1991 831.4545 831.4428 831.3191 831.4455 831.5231 831.4715 831.4763
#> May 1991 835.2232 835.2093 835.0612 835.2124 835.3046 835.2429 835.2487
#> Jun 1991 839.0331 839.0179 838.8553 839.0211 839.1218 839.0540 839.0605
#> Jul 1991 842.8854 842.8698 842.7028 842.8729 842.9758 842.9061 842.9130
#> Aug 1991 846.7874 846.7724 846.6109 846.7752 846.8741 846.8068 846.8135
#> Sep 1991 850.5599 850.5463 850.3993 850.5487 850.6383 850.5770 850.5832
#> Oct 1991 854.0950 854.0835 853.9595 854.0854 854.1605 854.1089 854.1142
#> Nov 1991 857.0511 857.0424 856.9482 857.0437 857.1004 857.0612 857.0653
#> Dec 1991 859.2930 859.2874 859.2253 859.2881 859.3252 859.2993 859.3021
#> Jan 1992 861.1229 861.1200 861.0888 861.1204 861.1388 861.1258 861.1272
#> Feb 1992 862.6733 862.6729 862.6672 862.6728 862.6759 862.6735 862.6739
#> Mar 1992 864.2255 864.2267 864.2388 864.2264 864.2190 864.2240 864.2235
#> Apr 1992 866.0464 866.0484 866.0705 866.0481 866.0350 866.0443 866.0433
#> May 1992 868.2171 868.2194 868.2460 868.2193 868.2040 868.2151 868.2138
#> Jun 1992 870.6055 870.6079 870.6347 870.6078 870.5927 870.6039 870.6025
#> Jul 1992 873.0033 873.0054 873.0290 873.0054 872.9923 873.0021 873.0009
#> Aug 1992 875.5295 875.5309 875.5469 875.5310 875.5224 875.5290 875.5281
#> Sep 1992 878.5065 878.5071 878.5139 878.5072 878.5038 878.5066 878.5062
#> Oct 1992 881.7343 881.7340 881.7318 881.7342 881.7358 881.7348 881.7348
#> Nov 1992 884.7481 884.7472 884.7373 884.7473 884.7531 884.7490 884.7494
#> Dec 1992 887.3661 887.3648 887.3503 887.3648 887.3731 887.3670 887.3677
#> Jan 1993 889.3621 889.3609 889.3467 889.3608 889.3686 889.3627 889.3634
#> Feb 1993 890.5556 890.5548 890.5452 890.5547 890.5597 890.5556 890.5562
#> Mar 1993 890.9680 890.9678 890.9655 890.9677 890.9685 890.9675 890.9677
#> Apr 1993 890.6739 890.6745 890.6810 890.6743 890.6698 890.6725 890.6724
#> May 1993 889.7334 889.7348 889.7495 889.7345 889.7252 889.7313 889.7308
#> Jun 1993 888.6683 888.6701 888.6899 888.6698 888.6577 888.6660 888.6652
#> Jul 1993 887.9399 887.9419 887.9631 887.9416 887.9291 887.9380 887.9371
#> Aug 1993 887.8665 887.8684 887.8897 887.8683 887.8561 887.8652 887.8642
#> Sep 1993 888.7165 888.7183 888.7384 888.7183 888.7072 888.7158 888.7147
#> Oct 1993 890.4211 890.4226 890.4393 890.4227 890.4139 890.4211 890.4202
#> Nov 1993 892.9781 892.9788 892.9881 892.9791 892.9749 892.9789 892.9783
#> Dec 1993 896.6841 896.6837 896.6813 896.6841 896.6867 896.6858 896.6857
#> Jan 1994 901.3531 901.3514 901.3341 901.3519 901.3630 901.3558 901.3565
#> Feb 1994 906.6875 906.6844 906.6503 906.6848 906.7054 906.6912 906.6927
#> Mar 1994 912.4596 912.4551 912.4050 912.4555 912.4850 912.4641 912.4665
#> Apr 1994 918.0964 918.0907 918.0275 918.0912 918.1279 918.1015 918.1046
#> May 1994 923.0134 923.0069 922.9330 923.0072 923.0495 923.0187 923.0223
#> Jun 1994 927.0953 927.0881 927.0067 927.0883 927.1342 927.1003 927.1044
#> Jul 1994 930.5570 930.5496 930.4652 930.5495 930.5961 930.5610 930.5656
#> Aug 1994 933.5159 933.5088 933.4256 933.5084 933.5532 933.5187 933.5234
#> Sep 1994 935.7072 935.7005 935.6220 935.6998 935.7413 935.7087 935.7133
#> Oct 1994 937.3102 937.3043 937.2332 937.3034 937.3402 937.3107 937.3151
#> Nov 1994 938.8565 938.8515 938.7913 938.8506 938.8812 938.8561 938.8600
#> Dec 1994 940.6077 940.6040 940.5591 940.6031 940.6251 940.6063 940.6094
#> Jan 1995 942.4954 942.4933 942.4662 942.4924 942.5044 942.4931 942.4952
#> Feb 1995 944.4778 944.4773 944.4691 944.4764 944.4778 944.4744 944.4754
#> Mar 1995 946.4666 946.4678 946.4787 946.4669 946.4574 946.4620 946.4621
#> Apr 1995 948.5312 948.5340 948.5621 948.5331 948.5139 948.5257 948.5249
#> May 1995 950.8473 950.8514 950.8935 950.8505 950.8236 950.8416 950.8399
#> Jun 1995 953.3779 953.3830 953.4368 953.3822 953.3490 953.3719 953.3696
#> Jul 1995 955.9359 955.9418 956.0043 955.9409 955.9027 955.9294 955.9267
#> Aug 1995 958.4996 958.5060 958.5744 958.5050 958.4634 958.4924 958.4897
#> Sep 1995 960.7974 960.8039 960.8731 960.8027 960.7603 960.7896 960.7870
#> Oct 1995 962.7402 962.7464 962.8118 962.7450 962.7045 962.7321 962.7298
#> Nov 1995 964.5028 964.5082 964.5656 964.5068 964.4708 964.4948 964.4930
#> Dec 1995 966.0587 966.0630 966.1081 966.0616 966.0330 966.0518 966.0505
#> Jan 1996 967.2285 967.2312 967.2599 967.2303 967.2122 967.2239 967.2231
#> Feb 1996 968.0213 968.0221 968.0316 968.0219 968.0165 968.0201 968.0197
#> Mar 1996 968.1932 968.1919 968.1810 968.1927 968.2012 968.1963 968.1963
#> Apr 1996 967.7471 967.7438 967.7127 967.7455 967.7678 967.7546 967.7549
#> May 1996 967.1553 967.1503 967.1008 967.1527 967.1874 967.1666 967.1671
#> Jun 1996 966.6610 966.6546 966.5910 966.6577 966.7018 966.6752 966.6761
#> Jul 1996 966.3390 966.3316 966.2585 966.3351 966.3859 966.3554 966.3564
#> Aug 1996 966.2834 966.2755 966.1981 966.2794 966.3340 966.3016 966.3027
#> Sep 1996 966.8495 966.8415 966.7660 966.8457 966.9008 966.8689 966.8698
#> Oct 1996 968.2767 968.2694 968.2018 968.2735 968.3249 968.2962 968.2968
#> Nov 1996 970.4069 970.4007 970.3471 970.4045 970.4477 970.4248 970.4252
#> Dec 1996 972.9363 972.9319 972.8951 972.9350 972.9673 972.9516 972.9517
#> Jan 1997 975.8633 975.8607 975.8410 975.8629 975.8831 975.8749 975.8750
#> Feb 1997 979.1441 979.1433 979.1393 979.1446 979.1529 979.1518 979.1519
#> Mar 1997 982.6712 982.6719 982.6794 982.6723 982.6709 982.6753 982.6755
#> Apr 1997 986.3173 986.3189 986.3326 986.3187 986.3109 986.3186 986.3189
#> May 1997 989.6718 989.6740 989.6892 989.6732 989.6620 989.6708 989.6715
#> Jun 1997 992.4816 992.4837 992.4957 992.4824 992.4708 992.4787 992.4799
#> Jul 1997 994.6599 994.6616 994.6670 994.6598 994.6497 994.6550 994.6569
#> Aug 1997 996.1539 996.1552 996.1524 996.1525 996.1442 996.1461 996.1492
#> Sep 1997 997.0144 997.0153 997.0057 997.0115 997.0038 997.0028 997.0072
#> Oct 1997 997.5889 997.5897 997.5776 997.5848 997.5757 997.5734 997.5789
#> Nov 1997 998.0111 998.0120 998.0024 998.0065 997.9949 997.9929 997.9990
#> Dec 1997 998.5121 998.5134 998.5118 998.5077 998.4930 998.4933 998.4990
#> Jan 1998 999.4799 999.4819 999.4940 999.4768 999.4583 999.4629 999.4671
#> Feb 1998 1001.0812 1001.0842 1001.1143 1001.0803 1001.0579 1001.0682 1001.0702
#> Mar 1998 1003.5162 1003.5202 1003.5694 1003.5179 1003.4924 1003.5090 1003.5079
#> Apr 1998 1006.9016 1006.9066 1006.9737 1006.9062 1006.8787 1006.9011 1006.8968
#> May 1998 1011.0498 1011.0555 1011.1374 1011.0570 1011.0291 1011.0563 1011.0491
#> Jun 1998 1015.4542 1015.4603 1015.5506 1015.4636 1015.4376 1015.4675 1015.4578
#> Jul 1998 1019.8507 1019.8565 1019.9476 1019.8611 1019.8390 1019.8690 1019.8581
#> Aug 1998 1023.7116 1023.7163 1023.8006 1023.7218 1023.7054 1023.7327 1023.7216
#> Sep 1998 1026.9014 1026.9044 1026.9743 1026.9101 1026.8995 1026.9214 1026.9118
#> Oct 1998 1029.3008 1029.3021 1029.3525 1029.3065 1029.3002 1029.3152 1029.3087
#> Nov 1998 1031.1543 1031.1542 1031.1821 1031.1562 1031.1520 1031.1595 1031.1571
#> Dec 1998 1032.8769 1032.8758 1032.8814 1032.8747 1032.8703 1032.8706 1032.8729
#> Jan 1999 1035.0421 1035.0409 1035.0286 1035.0364 1035.0289 1035.0240 1035.0307
#> Feb 1999 1037.9332 1037.9326 1037.9079 1037.9248 1037.9132 1037.9052 1037.9152
#> Mar 1999 1041.8234 1041.8241 1041.7938 1041.8137 1041.7978 1041.7890 1041.8010
#> Apr 1999 1046.6965 1046.6993 1046.6705 1046.6869 1046.6675 1046.6604 1046.6727
#> May 1999 1052.1567 1052.1619 1052.1396 1052.1485 1052.1271 1052.1231 1052.1344
#> Jun 1999 1057.9949 1058.0022 1057.9887 1057.9886 1057.9670 1057.9665 1057.9759
#> Jul 1999 1063.7725 1063.7809 1063.7766 1063.7688 1063.7502 1063.7529 1063.7592
#> Aug 1999 1069.0371 1069.0442 1069.0480 1069.0361 1069.0214 1069.0267 1069.0296
#> Sep 1999 1073.4293 1073.4332 1073.4445 1073.4307 1073.4193 1073.4267 1073.4265
#> Oct 1999 1076.6166 1076.6168 1076.6333 1076.6193 1076.6092 1076.6178 1076.6156
#> Nov 1999 1078.5904 1078.5876 1078.6058 1078.5924 1078.5802 1078.5883 1078.5864
#> Dec 1999 1079.6843 1079.6795 1079.6959 1079.6830 1079.6628 1079.6691 1079.6708
#> Jan 2000 1079.8528 1079.8480 1079.8592 1079.8453 1079.8109 1079.8142 1079.8230
#> Feb 2000 1079.3222 1079.3201 1079.3240 1079.3061 1079.2510 1079.2510 1079.2703
#> Mar 2000 1078.3942 1078.3979 1078.3945 1078.3678 1078.2870 1078.2843 1078.3165
#> Apr 2000 1077.4260 1077.4381 1077.4292 1077.3889 1077.2800 1077.2759 1077.3217
#> May 2000 1076.9565 1076.9783 1076.9662 1076.9096 1076.7739 1076.7696 1076.8283
#> Jun 2000 1077.2294 1077.2606 1077.2484 1077.1745 1077.0165 1077.0133 1077.0825
#> Jul 2000 1078.5411 1078.5801 1078.5718 1078.4811 1078.3063 1078.3060 1078.3820
#> Aug 2000 1080.8903 1080.9315 1080.9307 1080.8287 1080.6445 1080.6480 1080.7264
#> Sep 2000 1084.3624 1084.4004 1084.4093 1084.3028 1084.1166 1084.1247 1084.2008
#> Oct 2000 1088.7680 1088.7993 1088.8167 1088.7137 1088.5334 1088.5455 1088.6150
#> Nov 2000 1093.8132 1093.8359 1093.8588 1093.7667 1093.5997 1093.6145 1093.6743
#> Dec 2000 1099.0169 1099.0294 1099.0543 1098.9798 1098.8319 1098.8478 1098.8960
#> Jan 2001 1103.9002 1103.9025 1103.9248 1103.8729 1103.7495 1103.7646 1103.8010
#> Feb 2001 1108.3859 1108.3806 1108.3957 1108.3677 1108.2730 1108.2852 1108.3108
#> Mar 2001 1112.6768 1112.6683 1112.6733 1112.6661 1112.6011 1112.6090 1112.6260
#> Apr 2001 1116.9787 1116.9723 1116.9645 1116.9733 1116.9373 1116.9396 1116.9505
#> May 2001 1121.5364 1121.5368 1121.5154 1121.5342 1121.5267 1121.5228 1121.5301
#> Jun 2001 1126.6443 1126.6542 1126.6224 1126.6439 1126.6612 1126.6523 1126.6574
#> Jul 2001 1132.4037 1132.4247 1132.3862 1132.4038 1132.4391 1132.4269 1132.4300
#> Aug 2001 1138.9615 1138.9926 1138.9521 1138.9611 1139.0027 1138.9893 1138.9908
#> Sep 2001 1146.2518 1146.2891 1146.2503 1146.2503 1146.2874 1146.2741 1146.2740
#> Oct 2001 1154.3292 1154.3638 1154.3289 1154.3264 1154.3484 1154.3362 1154.3351
#> Nov 2001 1163.1110 1163.1325 1163.1033 1163.1072 1163.1056 1163.0953 1163.0938
#> Dec 2001 1172.0921 1172.0915 1172.0681 1172.0880 1172.0589 1172.0508 1172.0499
#> Jan 2002 1180.7583 1180.7314 1180.7120 1180.7543 1180.6998 1180.6932 1180.6936
#> Feb 2002 1189.0001 1188.9481 1188.9317 1188.9968 1188.9230 1188.9175 1188.9194
#> Mar 2002 1196.6704 1196.5988 1196.5838 1196.6684 1196.5851 1196.5800 1196.5834
#> Apr 2002 1203.6576 1203.5750 1203.5590 1203.6569 1203.5768 1203.5710 1203.5754
#> May 2002 1209.9882 1209.9042 1209.8859 1209.9886 1209.9271 1209.9200 1209.9246
#> Jun 2002 1215.7974 1215.7202 1215.6997 1215.7986 1215.7643 1215.7556 1215.7598
#> Jul 2002 1221.5638 1221.5017 1221.4801 1221.5647 1221.5578 1221.5477 1221.5496
#> Aug 2002 1227.6005 1227.5682 1227.5458 1227.6004 1227.6155 1227.6043 1227.6033
#> Sep 2002 1234.1214 1234.1257 1234.1025 1234.1201 1234.1447 1234.1330 1234.1293
#> Oct 2002 1240.9583 1240.9891 1240.9668 1240.9560 1240.9689 1240.9579 1240.9517
#> Nov 2002 1247.6541 1247.6860 1247.6696 1247.6520 1247.6309 1247.6230 1247.6141
#> Dec 2002 1253.8757 1253.8829 1253.8783 1253.8748 1253.8053 1253.8025 1253.7907
#> Jan 2003 1259.9829 1259.9372 1259.9488 1259.9839 1259.8609 1259.8647 1259.8497
#> Feb 2003 1266.2640 1266.1356 1266.1644 1266.2671 1266.0949 1266.1053 1266.0874
#> Mar 2003 1272.8590 1272.6228 1272.6653 1272.8640 1272.6577 1272.6728 1272.6528
#> Apr 2003 1279.8653 1279.5073 1279.5584 1279.8715 1279.6536 1279.6710 1279.6500
#> May 2003 1287.0970 1286.6191 1286.6732 1287.1035 1286.9128 1286.9297 1286.9089
#> Jun 2003 1294.1636 1293.5815 1293.6319 1294.1693 1294.0309 1294.0445 1294.0250
#> Jul 2003 1300.7271 1300.0752 1300.1167 1300.7309 1300.6525 1300.6608 1300.6414
#> Aug 2003 1306.7532 1306.0675 1306.0979 1306.7551 1306.7234 1306.7264 1306.7061
#> Sep 2003 1312.3941 1311.7116 1311.7294 1312.3946 1312.3846 1312.3830 1312.3618
#> Oct 2003 1317.7522 1317.1094 1317.1143 1317.7531 1317.7417 1317.7362 1317.7146
#> Nov 2003 1322.9099 1322.3393 1322.3307 1322.9124 1322.8767 1322.8681 1322.8478
#> Dec 2003 1328.3413 1327.8625 1327.8406 1328.3459 1328.2636 1328.2530 1328.2363
#> Jan 2004 1334.5278 1334.1496 1334.1175 1334.5343 1334.3876 1334.3771 1334.3667
#> Feb 2004 1341.2852 1341.0049 1340.9664 1341.2923 1341.0749 1341.0664 1341.0645
#> Mar 2004 1348.1957 1348.0018 1347.9608 1348.2015 1347.9217 1347.9167 1347.9243
#> Apr 2004 1354.8786 1354.7553 1354.7165 1354.8811 1354.5603 1354.5596 1354.5770
#> May 2004 1361.5559 1361.4844 1361.4520 1361.5531 1361.2089 1361.2128 1361.2389
#> Jun 2004 1368.5607 1368.5243 1368.5011 1368.5522 1368.2022 1368.2104 1368.2428
#> Jul 2004 1375.8492 1375.8214 1375.8057 1375.8379 1375.5144 1375.5254 1375.5652
#> Aug 2004 1383.2025 1383.1648 1383.1555 1383.1934 1382.9346 1382.9475 1382.9931
#> Sep 2004 1389.8845 1389.8332 1389.8333 1389.8814 1389.7253 1389.7402 1389.7835
#> Oct 2004 1395.1833 1395.1424 1395.1577 1395.1877 1395.1622 1395.1800 1395.2080
#> Nov 2004 1398.6258 1398.6399 1398.6740 1398.6355 1398.7654 1398.7860 1398.7846
#> Dec 2004 1400.2746 1400.3925 1400.4460 1400.2840 1400.5842 1400.6063 1400.5637
#> Jan 2005 1400.3807 1400.6351 1400.7054 1400.3831 1400.8539 1400.8755 1400.7858
#> Feb 2005 1399.2446 1399.6530 1399.7354 1399.2330 1399.8630 1399.8817 1399.7461
#> Mar 2005 1397.1058 1397.6671 1397.7559 1397.0749 1397.8417 1397.8561 1397.6834
#> Apr 2005 1394.1837 1394.8781 1394.9687 1394.1310 1395.0036 1395.0130 1394.8172
#> May 2005 1390.4037 1391.1981 1391.2865 1390.3300 1391.2965 1391.2993 1391.0970
#> Jun 2005 1386.3493 1387.2010 1387.2816 1386.2559 1387.2851 1387.2810 1387.0861
#> Jul 2005 1382.6400 1383.4950 1383.5651 1382.5328 1383.5690 1383.5597 1383.3761
#> Aug 2005 1379.7477 1380.5357 1380.5946 1379.6397 1380.6070 1380.5953 1380.4242
#> Sep 2005 1378.0397 1378.6894 1378.7386 1377.9476 1378.7488 1378.7387 1378.5826
#> Oct 2005 1378.0152 1378.4630 1378.5041 1377.9513 1378.4927 1378.4889 1378.3544
#> Nov 2005 1380.2424 1380.4413 1380.4771 1380.2165 1380.4020 1380.4096 1380.3045
#> Dec 2005 1384.5271 1384.4564 1384.4922 1384.5467 1384.2990 1384.3220 1384.2528
#> Jan 2006 1389.9674 1389.6408 1389.6813 1390.0363 1389.3157 1389.3554 1389.3249
#> Feb 2006 1395.8057 1395.2662 1395.3158 1395.9233 1394.7354 1394.7904 1394.7978
#> Mar 2006 1401.6339 1400.9445 1401.0070 1401.7942 1400.1919 1400.2599 1400.3037
#> Apr 2006 1407.1198 1406.3430 1406.4194 1407.3142 1405.3882 1405.4659 1405.5413
#> May 2006 1412.3176 1411.5035 1411.5928 1412.5393 1410.3279 1410.4139 1410.5091
#> Jun 2006 1416.9009 1416.0931 1416.1927 1417.1413 1414.7404 1414.8319 1414.9370
#> Jul 2006 1420.3360 1419.5861 1419.6905 1420.5871 1418.2134 1418.3017 1418.3994
#> Aug 2006 1422.6293 1422.0070 1422.1168 1422.8877 1420.8326 1420.9088 1420.9813
#> Sep 2006 1423.7657 1423.3321 1423.4470 1424.0272 1422.6018 1422.6567 1422.6963
#> Oct 2006 1424.3281 1424.1232 1424.2379 1424.5897 1424.0525 1424.0771 1424.0870
#> Nov 2006 1425.2546 1425.2878 1425.3836 1425.4958 1426.0099 1425.9971 1425.9907
#> Dec 2006 1427.3921 1427.6411 1427.7027 1427.5766 1429.1712 1429.1176 1429.1147
#> Jan 2007 1431.2833 1431.7014 1431.7199 1431.3839 1433.9344 1433.8390 1433.8620
#> Feb 2007 1437.2081 1437.7328 1437.7064 1437.2124 1440.4844 1440.3382 1440.4061
#> Mar 2007 1444.9892 1445.5550 1445.4886 1444.8974 1448.5962 1448.3994 1448.5358
#> Apr 2007 1454.5343 1455.0862 1454.9895 1454.3615 1458.1784 1457.9414 1458.1546
#> May 2007 1465.1356 1465.6333 1465.5200 1464.9096 1468.5846 1468.3247 1468.6020
#> Jun 2007 1476.2194 1476.6271 1476.5131 1475.9733 1479.2280 1478.9713 1479.2820
#> Jul 2007 1486.9108 1487.2037 1487.1098 1486.6876 1489.3112 1489.0862 1489.3888
#> Aug 2007 1496.5167 1496.6853 1496.6215 1496.3481 1498.2351 1498.0643 1498.3194
#> Sep 2007 1504.9796 1505.0330 1505.0079 1504.8967 1506.0440 1505.9458 1506.1152
#> Oct 2007 1512.0593 1512.0321 1512.0571 1512.1007 1512.6034 1512.5901 1512.6395
#> Nov 2007 1517.5244 1517.4593 1517.5254 1517.7001 1517.7106 1517.7865 1517.6906
#> Dec 2007 1521.2942 1521.2336 1521.3338 1521.5670 1521.2744 1521.4327 1521.1828
#> Jan 2008 1523.5130 1523.4912 1523.6257 1523.8463 1523.3816 1523.6050 1523.2113
#> Feb 2008 1524.4768 1524.5097 1524.6801 1524.8407 1524.2940 1524.5304 1524.0186
#> Mar 2008 1524.5256 1524.6073 1524.8164 1524.9026 1524.3041 1524.5008 1523.9119
#> Apr 2008 1524.1409 1524.2482 1524.4982 1524.5230 1523.8393 1523.9660 1523.3442
#> May 2008 1523.9045 1524.0119 1524.3029 1524.2908 1523.4960 1523.5465 1522.9408
#> Jun 2008 1524.0707 1524.1679 1524.5087 1524.4936 1523.7624 1523.7507 1523.2040
#> Jul 2008 1525.4313 1525.5070 1525.9080 1525.9271 1525.3453 1525.3158 1524.8928
#> Aug 2008 1528.7444 1528.7779 1529.2363 1529.3264 1528.8805 1528.8944 1528.6490
#> Sep 2008 1534.0650 1534.0363 1534.5188 1534.6995 1534.3266 1534.4403 1534.3850
#> Oct 2008 1541.3675 1541.2736 1541.7214 1541.9892 1541.5939 1541.8467 1541.9480
#> Nov 2008 1549.9976 1549.8410 1550.1458 1550.4663 1549.9460 1550.3502 1550.5386
#> Dec 2008 1559.0787 1558.8680 1558.9463 1559.2090 1558.4643 1558.9990 1559.1859
#> Jan 2009 1567.9516 1567.7021 1567.5071 1567.6250 1566.4970 1567.1097 1567.2084
#> Feb 2009 1575.7001 1575.4286 1574.9521 1574.8768 1573.2924 1573.8683 1573.8197
#> Mar 2009 1581.6722 1581.3936 1580.6691 1580.3922 1578.3796 1578.8238 1578.6287
#> Apr 2009 1585.4587 1585.1834 1584.2838 1583.8419 1581.5142 1581.7613 1581.4252
#> May 2009 1586.9396 1586.6705 1585.6951 1585.1638 1582.7040 1582.7251 1582.2608
#> Jun 2009 1586.3617 1586.0921 1585.1456 1584.6256 1582.1963 1582.0079 1581.4397
#> Jul 2009 1583.8779 1583.6063 1582.7867 1582.3847 1580.2141 1579.8709 1579.2103
#> Aug 2009 1579.8070 1579.5353 1578.9263 1578.7377 1577.0180 1576.6081 1575.8669
#> Sep 2009 1574.9622 1574.6992 1574.3642 1574.4481 1573.2909 1572.9242 1572.1209
#> Oct 2009 1569.8693 1569.5933 1569.5497 1569.9071 1569.3158 1569.0961 1568.2577
#> Nov 2009 1565.0061 1564.7143 1565.0556 1565.6236 1565.4849 1565.4851 1564.6433
#> Dec 2009 1560.6052 1560.3339 1561.0648 1561.8713 1561.9646 1562.2070 1561.3922
#> Jan 2010 1556.9249 1556.7372 1557.7056 1558.7089 1558.9089 1559.3567 1558.5942
#> Feb 2010 1554.2524 1554.2276 1555.1665 1556.1829 1556.3315 1557.0316 1556.3389
#> Mar 2010 1552.8135 1553.0335 1553.6091 1554.3647 1554.2119 1555.1398 1554.4546
#> Apr 2010 1552.5896 1553.1241 1552.9939 1553.1672 1552.4495 1553.4461 1552.7463
#> May 2010 1553.6750 1554.5676 1553.4477 1552.7233 1551.1779 1551.9913 1551.3355
#> Jun 2010 1555.9989 1557.2528 1554.9580 1553.0779 1550.3809 1550.7139 1550.2265
#> Jul 2010 1559.4033 1560.9774 1557.4335 1554.2298 1550.0463 1549.6010 1549.4378
#> Aug 2010 1563.1620 1564.9941 1560.2509 1555.6708 1549.8587 1548.3832 1548.6780
#> Sep 2010 NaN 1568.5832 1562.7997 1556.8974 1549.4390 1546.7714 1547.6477
#> Oct 2010 NaN NaN 1564.7383 1557.6529 1548.6313 1544.7196 1546.2739
#> Nov 2010 NaN NaN NaN 1557.7775 1547.3420 1542.2415 1544.5329
#> Dec 2010 NaN NaN NaN NaN 1545.9660 1539.8188 1542.8644
#> Jan 2011 NaN NaN NaN NaN NaN 1537.8445 1541.6201
#> Feb 2011 NaN NaN NaN NaN NaN NaN 1541.0479
#> Mar 2011 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2011 NaN NaN NaN NaN NaN NaN NaN
#> May 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2011 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2011 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2011 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 15 Series 16 Series 17 Series 18 Series 19 Series 20 Series 21
#> Apr 1982 482.7272 482.6871 482.7004 482.7090 482.7034 482.7117 482.7124
#> May 1982 483.8200 483.7802 483.7933 483.8011 483.7952 483.8044 483.8055
#> Jun 1982 485.2164 485.1835 485.1975 485.2046 485.1975 485.2091 485.2110
#> Jul 1982 486.1516 486.1088 486.1206 486.1263 486.1201 486.1303 486.1320
#> Aug 1982 487.2971 487.2503 487.2613 487.2660 487.2598 487.2702 487.2722
#> Sep 1982 488.6724 488.6247 488.6353 488.6392 488.6330 488.6437 488.6459
#> Oct 1982 490.2739 490.2253 490.2353 490.2387 490.2327 490.2432 490.2454
#> Nov 1982 491.9863 491.9385 491.9466 491.9497 491.9449 491.9531 491.9548
#> Dec 1982 493.7811 493.7327 493.7393 493.7424 493.7388 493.7448 493.7459
#> Jan 1983 495.5337 495.4816 495.4866 495.4898 495.4876 495.4910 495.4913
#> Feb 1983 497.2987 497.2407 497.2440 497.2474 497.2467 497.2472 497.2468
#> Mar 1983 499.1464 499.0809 499.0825 499.0859 499.0866 499.0845 499.0833
#> Apr 1983 501.0451 500.9732 500.9727 500.9757 500.9778 500.9731 500.9713
#> May 1983 503.1505 503.0742 503.0716 503.0737 503.0771 503.0703 503.0681
#> Jun 1983 505.5279 505.4464 505.4420 505.4432 505.4474 505.4392 505.4368
#> Jul 1983 508.1910 508.1019 508.0969 508.0974 508.1017 508.0935 508.0912
#> Aug 1983 511.1121 511.0125 511.0090 511.0095 511.0126 511.0066 511.0049
#> Sep 1983 514.3499 514.2373 514.2375 514.2389 514.2396 514.2379 514.2372
#> Oct 1983 518.0105 517.8850 517.8911 517.8944 517.8915 517.8961 517.8968
#> Nov 1983 522.1673 522.0295 522.0430 522.0490 522.0418 522.0538 522.0560
#> Dec 1983 526.7568 526.6072 526.6281 526.6372 526.6257 526.6450 526.6486
#> Jan 1984 531.7016 531.5417 531.5696 531.5816 531.5663 531.5921 531.5970
#> Feb 1984 536.7913 536.6237 536.6573 536.6717 536.6532 536.6843 536.6902
#> Mar 1984 541.7871 541.6159 541.6528 541.6686 541.6483 541.6826 541.6890
#> Apr 1984 546.6346 546.4646 546.5026 546.5187 546.4976 546.5332 546.5400
#> May 1984 551.3454 551.1849 551.2216 551.2368 551.2162 551.2511 551.2578
#> Jun 1984 555.8736 555.7293 555.7620 555.7751 555.7564 555.7882 555.7945
#> Jul 1984 560.3885 560.2656 560.2920 560.3019 560.2866 560.3129 560.3183
#> Aug 1984 565.1838 565.0877 565.1056 565.1118 565.1011 565.1197 565.1237
#> Sep 1984 570.3414 570.2768 570.2849 570.2872 570.2821 570.2911 570.2931
#> Oct 1984 576.1281 576.0937 576.0923 576.0912 576.0916 576.0911 576.0912
#> Nov 1984 582.6129 582.6057 582.5964 582.5925 582.5977 582.5890 582.5873
#> Dec 1984 589.7741 589.7922 589.7774 589.7719 589.7806 589.7656 589.7625
#> Jan 1985 597.6143 597.6591 597.6412 597.6352 597.6461 597.6271 597.6230
#> Feb 1985 605.9028 605.9780 605.9588 605.9531 605.9652 605.9438 605.9390
#> Mar 1985 614.2805 614.3903 614.3707 614.3655 614.3783 614.3555 614.3503
#> Apr 1985 622.4540 622.6015 622.5821 622.5778 622.5910 622.5673 622.5617
#> May 1985 630.0308 630.2102 630.1919 630.1890 630.2021 630.1782 630.1723
#> Jun 1985 636.4282 636.6305 636.6136 636.6119 636.6246 636.6011 636.5950
#> Jul 1985 641.3393 641.5544 641.5390 641.5380 641.5498 641.5277 641.5220
#> Aug 1985 644.5387 644.7537 644.7394 644.7378 644.7486 644.7287 644.7237
#> Sep 1985 646.3164 646.5176 646.5042 646.5009 646.5099 646.4938 646.4900
#> Oct 1985 647.0426 647.2177 647.2052 647.1991 647.2058 647.1947 647.1927
#> Nov 1985 647.3902 647.5270 647.5149 647.5053 647.5095 647.5039 647.5041
#> Dec 1985 648.1320 648.2245 648.2124 648.1987 648.2006 648.2005 648.2029
#> Jan 1986 649.7303 649.7753 649.7635 649.7461 649.7455 649.7509 649.7554
#> Feb 1986 652.3406 652.3365 652.3262 652.3063 652.3030 652.3141 652.3206
#> Mar 1986 656.0765 656.0235 656.0173 655.9968 655.9898 656.0080 656.0165
#> Apr 1986 660.9543 660.8531 660.8543 660.8357 660.8238 660.8508 660.8613
#> May 1986 666.7473 666.6043 666.6149 666.6001 666.5829 666.6190 666.6313
#> Jun 1986 673.1793 673.0050 673.0263 673.0168 672.9941 673.0393 673.0531
#> Jul 1986 679.9412 679.7499 679.7820 679.7787 679.7509 679.8041 679.8191
#> Aug 1986 686.4659 686.2723 686.3136 686.3165 686.2848 686.3437 686.3590
#> Sep 1986 692.3771 692.1925 692.2408 692.2492 692.2150 692.2772 692.2925
#> Oct 1986 697.4782 697.3097 697.3617 697.3743 697.3395 697.4018 697.4164
#> Nov 1986 701.4181 701.2723 701.3239 701.3388 701.3058 701.3642 701.3774
#> Dec 1986 704.2617 704.1408 704.1883 704.2037 704.1743 704.2257 704.2369
#> Jan 1987 706.1895 706.0913 706.1306 706.1446 706.1210 706.1619 706.1705
#> Feb 1987 707.4826 707.4007 707.4295 707.4410 707.4244 707.4527 707.4584
#> Mar 1987 708.7173 708.6432 708.6609 708.6695 708.6601 708.6755 708.6782
#> Apr 1987 710.2996 710.2246 710.2316 710.2372 710.2349 710.2379 710.2377
#> May 1987 712.2660 712.1819 712.1798 712.1829 712.1864 712.1791 712.1766
#> Jun 1987 714.8672 714.7702 714.7619 714.7631 714.7704 714.7563 714.7523
#> Jul 1987 718.2376 718.1260 718.1154 718.1155 718.1241 718.1079 718.1035
#> Aug 1987 722.4054 722.2807 722.2718 722.2718 722.2791 722.2654 722.2617
#> Sep 1987 727.4088 727.2782 727.2735 727.2742 727.2784 727.2703 727.2680
#> Oct 1987 732.8846 732.7592 732.7588 732.7602 732.7614 732.7588 732.7579
#> Nov 1987 738.5079 738.3991 738.4024 738.4045 738.4031 738.4052 738.4054
#> Dec 1987 743.7678 743.6838 743.6895 743.6922 743.6891 743.6943 743.6952
#> Jan 1988 748.1281 748.0693 748.0766 748.0798 748.0757 748.0826 748.0838
#> Feb 1988 751.6990 751.6624 751.6704 751.6740 751.6697 751.6769 751.6782
#> Mar 1988 754.7528 754.7329 754.7405 754.7442 754.7403 754.7467 754.7478
#> Apr 1988 757.4102 757.4019 757.4073 757.4103 757.4076 757.4119 757.4125
#> May 1988 759.7861 759.7855 759.7882 759.7898 759.7886 759.7905 759.7908
#> Jun 1988 762.1220 762.1249 762.1254 762.1257 762.1255 762.1258 762.1258
#> Jul 1988 764.4346 764.4396 764.4391 764.4385 764.4385 764.4387 764.4389
#> Aug 1988 766.8013 766.8086 766.8093 766.8083 766.8073 766.8095 766.8103
#> Sep 1988 769.1681 769.1775 769.1801 769.1792 769.1766 769.1817 769.1833
#> Oct 1988 771.4436 771.4551 771.4597 771.4592 771.4552 771.4629 771.4650
#> Nov 1988 773.8597 773.8729 773.8793 773.8794 773.8744 773.8839 773.8865
#> Dec 1988 776.5456 776.5590 776.5662 776.5670 776.5616 776.5716 776.5742
#> Jan 1989 779.5337 779.5454 779.5524 779.5537 779.5487 779.5578 779.5600
#> Feb 1989 782.9480 782.9565 782.9619 782.9633 782.9597 782.9662 782.9677
#> Mar 1989 786.7905 786.7945 786.7965 786.7973 786.7962 786.7981 786.7985
#> Apr 1989 790.7150 790.7130 790.7108 790.7109 790.7127 790.7092 790.7083
#> May 1989 794.7964 794.7896 794.7836 794.7829 794.7873 794.7791 794.7771
#> Jun 1989 799.1429 799.1340 799.1250 799.1233 799.1296 799.1182 799.1154
#> Jul 1989 803.4456 803.4369 803.4257 803.4229 803.4304 803.4171 803.4140
#> Aug 1989 807.6252 807.6189 807.6066 807.6030 807.6107 807.5970 807.5940
#> Sep 1989 811.3436 811.3424 811.3317 811.3277 811.3341 811.3231 811.3208
#> Oct 1989 814.3019 814.3089 814.3037 814.3005 814.3028 814.2993 814.2989
#> Nov 1989 816.4767 816.4938 816.4974 816.4957 816.4918 816.4996 816.5020
#> Dec 1989 817.8140 817.8416 817.8546 817.8546 817.8441 817.8639 817.8692
#> Jan 1990 818.4888 818.5282 818.5497 818.5512 818.5346 818.5654 818.5734
#> Feb 1990 818.8658 818.9174 818.9448 818.9470 818.9261 818.9648 818.9748
#> Mar 1990 818.9762 819.0390 819.0685 819.0705 819.0477 819.0900 819.1010
#> Apr 1990 818.9825 819.0556 819.0841 819.0849 819.0623 819.1045 819.1157
#> May 1990 819.0318 819.1104 819.1358 819.1355 819.1147 819.1538 819.1644
#> Jun 1990 819.1427 819.2217 819.2421 819.2406 819.2232 819.2563 819.2654
#> Jul 1990 819.2019 819.2751 819.2877 819.2849 819.2730 819.2960 819.3026
#> Aug 1990 819.1201 819.1830 819.1865 819.1824 819.1771 819.1881 819.1918
#> Sep 1990 818.8977 818.9480 818.9438 818.9389 818.9394 818.9396 818.9404
#> Oct 1990 818.9956 819.0338 819.0263 819.0219 819.0252 819.0200 819.0193
#> Nov 1990 819.6249 819.6545 819.6506 819.6479 819.6493 819.6472 819.6471
#> Dec 1990 820.7796 820.8066 820.8148 820.8155 820.8092 820.8210 820.8241
#> Jan 1991 822.6738 822.7062 822.7349 822.7405 822.7205 822.7569 822.7658
#> Feb 1991 825.2388 825.2834 825.3380 825.3494 825.3117 825.3799 825.3964
#> Mar 1991 828.1698 828.2317 828.3148 828.3321 828.2749 828.3785 828.4034
#> Apr 1991 831.5216 831.6023 831.7125 831.7354 831.6595 831.7969 831.8300
#> May 1991 835.3050 835.4045 835.5356 835.5623 835.4716 835.6357 835.6753
#> Jun 1991 839.1247 839.2383 839.3814 839.4099 839.3106 839.4905 839.5341
#> Jul 1991 842.9811 843.1022 843.2484 843.2768 843.1750 843.3596 843.4045
#> Aug 1991 846.8815 847.0027 847.1433 847.1700 847.0717 847.2501 847.2935
#> Sep 1991 850.6469 850.7608 850.8881 850.9118 850.8225 850.9846 851.0242
#> Oct 1991 854.1694 854.2690 854.3757 854.3951 854.3200 854.4565 854.4899
#> Nov 1991 857.1085 857.1874 857.2679 857.2822 857.2253 857.3288 857.3541
#> Dec 1991 859.3314 859.3863 859.4389 859.4480 859.4106 859.4786 859.4952
#> Jan 1992 861.1427 861.1731 861.1993 861.2036 861.1849 861.2189 861.2273
#> Feb 1992 862.6774 862.6863 862.6906 862.6911 862.6878 862.6938 862.6952
#> Mar 1992 864.2184 864.2109 864.2003 864.1983 864.2057 864.1922 864.1889
#> Apr 1992 866.0322 866.0129 865.9943 865.9912 866.0045 865.9802 865.9742
#> May 1992 868.1987 868.1710 868.1492 868.1462 868.1621 868.1330 868.1257
#> Jun 1992 870.5861 870.5550 870.5335 870.5308 870.5468 870.5175 870.5101
#> Jul 1992 872.9858 872.9565 872.9377 872.9356 872.9496 872.9239 872.9173
#> Aug 1992 875.5171 875.4950 875.4826 875.4815 875.4909 875.4735 875.4691
#> Sep 1992 878.5006 878.4890 878.4840 878.4838 878.4878 878.4804 878.4785
#> Oct 1992 881.7352 881.7353 881.7375 881.7381 881.7367 881.7393 881.7399
#> Nov 1992 884.7551 884.7658 884.7740 884.7752 884.7692 884.7802 884.7830
#> Dec 1992 887.3768 887.3948 887.4065 887.4079 887.3992 887.4152 887.4193
#> Jan 1993 889.3731 889.3929 889.4040 889.4051 889.3967 889.4123 889.4162
#> Feb 1993 890.5637 890.5798 890.5871 890.5874 890.5818 890.5923 890.5950
#> Mar 1993 890.9709 890.9791 890.9804 890.9800 890.9787 890.9812 890.9819
#> Apr 1993 890.6709 890.6698 890.6637 890.6622 890.6662 890.6589 890.6572
#> May 1993 889.7250 889.7148 889.7019 889.6993 889.7083 889.6920 889.6879
#> Jun 1993 888.6555 888.6375 888.6206 888.6178 888.6298 888.6078 888.6023
#> Jul 1993 887.9247 887.9018 887.8842 887.8818 887.8946 887.8710 887.8650
#> Aug 1993 887.8495 887.8231 887.8061 887.8044 887.8172 887.7934 887.7872
#> Sep 1993 888.6986 888.6714 888.6559 888.6551 888.6670 888.6446 888.6386
#> Oct 1993 890.4043 890.3799 890.3677 890.3677 890.3775 890.3589 890.3537
#> Nov 1993 892.9658 892.9494 892.9436 892.9448 892.9501 892.9396 892.9365
#> Dec 1993 896.6800 896.6767 896.6805 896.6829 896.6813 896.6837 896.6837
#> Jan 1994 901.3603 901.3738 901.3896 901.3934 901.3829 901.4017 901.4059
#> Feb 1994 906.7074 906.7391 906.7684 906.7737 906.7532 906.7904 906.7993
#> Mar 1994 912.4919 912.5406 912.5825 912.5891 912.5591 912.6138 912.6273
#> Apr 1994 918.1391 918.2012 918.2535 918.2611 918.2233 918.2925 918.3097
#> May 1994 923.0652 923.1386 923.1990 923.2071 923.1630 923.2439 923.2642
#> Jun 1994 927.1540 927.2356 927.3015 927.3097 927.2612 927.3503 927.3728
#> Jul 1994 930.6196 930.7055 930.7729 930.7805 930.7304 930.8227 930.8461
#> Aug 1994 933.5794 933.6653 933.7308 933.7372 933.6880 933.7788 933.8018
#> Sep 1994 935.7687 935.8510 935.9119 935.9171 935.8708 935.9563 935.9781
#> Oct 1994 937.3674 937.4428 937.4970 937.5009 937.4592 937.5364 937.5561
#> Nov 1994 938.9065 938.9717 939.0169 939.0194 938.9843 939.0493 939.0660
#> Dec 1994 940.6475 940.6993 940.7318 940.7326 940.7067 940.7549 940.7675
#> Jan 1995 942.5231 942.5599 942.5779 942.5766 942.5614 942.5901 942.5979
#> Feb 1995 944.4924 944.5136 944.5161 944.5129 944.5089 944.5170 944.5197
#> Mar 1995 946.4681 946.4734 946.4604 946.4551 946.4626 946.4498 946.4474
#> Apr 1995 948.5202 948.5105 948.4838 948.4770 948.4946 948.4632 948.4561
#> May 1995 950.8243 950.7998 950.7624 950.7550 950.7808 950.7342 950.7231
#> Jun 1995 953.3442 953.3070 953.2610 953.2532 953.2858 953.2265 953.2121
#> Jul 1995 955.8934 955.8465 955.7941 955.7861 955.8237 955.7549 955.7378
#> Aug 1995 958.4509 958.3971 958.3403 958.3322 958.3731 958.2979 958.2788
#> Sep 1995 960.7473 960.6911 960.6335 960.6252 960.6666 960.5902 960.5706
#> Oct 1995 962.6933 962.6402 962.5853 962.5768 962.6160 962.5437 962.5250
#> Nov 1995 964.4628 964.4188 964.3700 964.3618 964.3963 964.3327 964.3162
#> Dec 1995 966.0286 965.9994 965.9603 965.9532 965.9804 965.9303 965.9172
#> Jan 1996 967.2105 967.2007 967.1755 967.1705 967.1879 967.1559 967.1477
#> Feb 1996 968.0158 968.0268 968.0183 968.0166 968.0224 968.0118 968.0091
#> Mar 1996 968.1999 968.2309 968.2409 968.2432 968.2367 968.2487 968.2519
#> Apr 1996 967.7657 967.8163 967.8446 967.8511 967.8322 967.8668 967.8758
#> May 1996 967.1848 967.2540 967.2989 967.3090 967.2791 967.3340 967.3483
#> Jun 1996 966.6980 966.7806 966.8383 966.8515 966.8130 966.8835 966.9016
#> Jul 1996 966.3791 966.4666 966.5334 966.5492 966.5048 966.5856 966.6061
#> Aug 1996 966.3219 966.4026 966.4744 966.4924 966.4453 966.5305 966.5515
#> Sep 1996 966.8810 966.9443 967.0162 967.0359 966.9897 967.0724 967.0920
#> Oct 1996 968.2963 968.3335 968.4004 968.4209 968.3792 968.4526 968.4689
#> Nov 1996 970.4106 970.4169 970.4733 970.4936 970.4600 970.5175 970.5287
#> Dec 1996 972.9230 972.8988 972.9419 972.9609 972.9373 972.9757 972.9813
#> Jan 1997 975.8342 975.7839 975.8129 975.8301 975.8165 975.8359 975.8359
#> Feb 1997 979.1027 979.0347 979.0503 979.0652 979.0608 979.0630 979.0584
#> Mar 1997 982.6224 982.5473 982.5524 982.5650 982.5675 982.5572 982.5495
#> Apr 1997 986.2661 986.1919 986.1909 986.2017 986.2079 986.1912 986.1823
#> May 1997 989.6232 989.5557 989.5521 989.5612 989.5684 989.5505 989.5419
#> Jun 1997 992.4402 992.3828 992.3801 992.3876 992.3929 992.3791 992.3721
#> Jul 1997 994.6287 994.5821 994.5828 994.5887 994.5903 994.5840 994.5794
#> Aug 1997 996.1340 996.1015 996.1063 996.1102 996.1072 996.1099 996.1077
#> Sep 1997 997.0036 996.9837 996.9913 996.9929 996.9861 996.9958 996.9954
#> Oct 1997 997.5826 997.5661 997.5734 997.5726 997.5646 997.5765 997.5762
#> Nov 1997 998.0046 997.9757 997.9792 997.9764 997.9702 997.9785 997.9767
#> Dec 1997 998.5008 998.4410 998.4373 998.4329 998.4316 998.4304 998.4257
#> Jan 1998 999.4603 999.3535 999.3389 999.3332 999.3403 999.3235 999.3147
#> Feb 1998 1001.0519 1000.8907 1000.8624 1000.8555 1000.8736 1000.8369 1000.8233
#> Mar 1998 1003.4780 1003.2636 1003.2210 1003.2132 1003.2429 1003.1854 1003.1674
#> Apr 1998 1006.8575 1006.5963 1006.5404 1006.5316 1006.5723 1006.4957 1006.4742
#> May 1998 1011.0014 1010.6997 1010.6336 1010.6245 1010.6742 1010.5822 1010.5583
#> Jun 1998 1015.4038 1015.0706 1014.9997 1014.9915 1015.0463 1014.9460 1014.9211
#> Jul 1998 1019.8003 1019.4485 1019.3790 1019.3725 1019.4276 1019.3271 1019.3029
#> Aug 1998 1023.6634 1023.3066 1023.2445 1023.2402 1023.2909 1023.1984 1023.1761
#> Sep 1998 1026.8571 1026.5132 1026.4636 1026.4618 1026.5035 1026.4266 1026.4073
#> Oct 1998 1029.2613 1028.9481 1028.9138 1028.9139 1028.9436 1028.8873 1028.8714
#> Nov 1998 1031.1203 1030.8540 1030.8363 1030.8376 1030.8536 1030.8207 1030.8086
#> Dec 1998 1032.8484 1032.6410 1032.6387 1032.6406 1032.6430 1032.6331 1032.6248
#> Jan 1999 1035.0183 1034.8766 1034.8855 1034.8870 1034.8788 1034.8871 1034.8816
#> Feb 1999 1037.9132 1037.8355 1037.8513 1037.8521 1037.8367 1037.8575 1037.8542
#> Mar 1999 1041.8062 1041.7814 1041.7994 1041.7993 1041.7807 1041.8072 1041.8052
#> Apr 1999 1046.6805 1046.6915 1046.7069 1046.7061 1046.6888 1046.7135 1046.7118
#> May 1999 1052.1425 1052.1755 1052.1853 1052.1837 1052.1706 1052.1889 1052.1870
#> Jun 1999 1057.9829 1058.0287 1058.0316 1058.0293 1058.0217 1058.0315 1058.0292
#> Jul 1999 1063.7655 1063.8170 1063.8140 1063.8111 1063.8092 1063.8109 1063.8090
#> Aug 1999 1069.0355 1069.0866 1069.0791 1069.0757 1069.0786 1069.0739 1069.0731
#> Sep 1999 1073.4312 1073.4711 1073.4597 1073.4558 1073.4630 1073.4524 1073.4522
#> Oct 1999 1076.6183 1076.6418 1076.6276 1076.6228 1076.6331 1076.6178 1076.6173
#> Nov 1999 1078.5860 1078.5968 1078.5808 1078.5748 1078.5862 1078.5677 1078.5651
#> Dec 1999 1079.6658 1079.6751 1079.6573 1079.6493 1079.6600 1079.6390 1079.6313
#> Jan 2000 1079.8119 1079.8408 1079.8206 1079.8097 1079.8180 1079.7947 1079.7790
#> Feb 2000 1079.2513 1079.3186 1079.2948 1079.2799 1079.2849 1079.2585 1079.2317
#> Mar 2000 1078.2878 1078.4036 1078.3740 1078.3541 1078.3561 1078.3246 1078.2844
#> Apr 2000 1077.2817 1077.4490 1077.4118 1077.3861 1077.3860 1077.3473 1077.2924
#> May 2000 1076.7766 1076.9900 1076.9445 1076.9129 1076.9118 1076.8647 1076.7957
#> Jun 2000 1077.0206 1077.2665 1077.2126 1077.1751 1077.1745 1077.1185 1077.0376
#> Jul 2000 1078.3116 1078.5687 1078.5061 1078.4632 1078.4653 1078.3995 1078.3095
#> Aug 2000 1080.6496 1080.8909 1080.8208 1080.7735 1080.7799 1080.7046 1080.6097
#> Sep 2000 1084.1209 1084.3238 1084.2486 1084.1986 1084.2103 1084.1274 1084.0323
#> Oct 2000 1088.5359 1088.6852 1088.6093 1088.5596 1088.5757 1088.4902 1088.4002
#> Nov 2000 1093.6001 1093.6906 1093.6192 1093.5736 1093.5920 1093.5099 1093.4299
#> Dec 2000 1098.8299 1098.8657 1098.8030 1098.7652 1098.7838 1098.7104 1098.6440
#> Jan 2001 1103.7453 1103.7249 1103.6755 1103.6487 1103.6644 1103.6054 1103.5548
#> Feb 2001 1108.2664 1108.1992 1108.1662 1108.1526 1108.1627 1108.1223 1108.0878
#> Mar 2001 1112.5923 1112.5064 1112.4904 1112.4901 1112.4932 1112.4724 1112.4524
#> Apr 2001 1116.9280 1116.8672 1116.8671 1116.8786 1116.8740 1116.8725 1116.8646
#> May 2001 1121.5172 1121.5271 1121.5408 1121.5613 1121.5495 1121.5648 1121.5659
#> Jun 2001 1126.6507 1126.7666 1126.7896 1126.8152 1126.7990 1126.8251 1126.8320
#> Jul 2001 1132.4264 1132.6694 1132.6977 1132.7224 1132.7049 1132.7361 1132.7458
#> Aug 2001 1138.9871 1139.3640 1139.3930 1139.4105 1139.3948 1139.4249 1139.4344
#> Sep 2001 1146.2689 1146.7682 1146.7944 1146.8010 1146.7894 1146.8137 1146.8211
#> Oct 2001 1154.3281 1154.9236 1154.9443 1154.9398 1154.9332 1154.9491 1154.9533
#> Nov 2001 1163.0854 1163.7369 1163.7496 1163.7368 1163.7353 1163.7413 1163.7419
#> Dec 2001 1172.0413 1172.7016 1172.7058 1172.6898 1172.6923 1172.6893 1172.6869
#> Jan 2002 1180.6868 1181.3105 1181.3075 1181.2944 1181.2988 1181.2898 1181.2859
#> Feb 2002 1188.9164 1189.4552 1189.4467 1189.4416 1189.4460 1189.4342 1189.4302
#> Mar 2002 1196.5858 1197.0002 1196.9888 1196.9951 1196.9978 1196.9869 1196.9843
#> Apr 2002 1203.5837 1203.8462 1203.8360 1203.8550 1203.8541 1203.8485 1203.8488
#> May 2002 1209.9392 1210.0392 1210.0330 1210.0629 1210.0576 1210.0600 1210.0640
#> Jun 2002 1215.7795 1215.7241 1215.7235 1215.7589 1215.7497 1215.7606 1215.7680
#> Jul 2002 1221.5724 1221.3877 1221.3933 1221.4238 1221.4125 1221.4306 1221.4403
#> Aug 2002 1227.6274 1227.3584 1227.3689 1227.3890 1227.3767 1227.4007 1227.4115
#> Sep 2002 1234.1530 1233.8519 1233.8655 1233.8728 1233.8602 1233.8883 1233.8991
#> Oct 2002 1240.9732 1240.6791 1240.6945 1240.6871 1240.6754 1240.7037 1240.7134
#> Nov 2002 1247.6313 1247.3659 1247.3797 1247.3566 1247.3486 1247.3701 1247.3772
#> Dec 2002 1253.8021 1253.5724 1253.5811 1253.5420 1253.5410 1253.5489 1253.5523
#> Jan 2003 1259.8545 1259.6605 1259.6604 1259.6074 1259.6158 1259.6052 1259.6042
#> Feb 2003 1266.0863 1265.9342 1265.9230 1265.8612 1265.8799 1265.8491 1265.8440
#> Mar 2003 1272.6476 1272.5334 1272.5120 1272.4482 1272.4756 1272.4280 1272.4201
#> Apr 2003 1279.6409 1279.5488 1279.5202 1279.4631 1279.4963 1279.4381 1279.4288
#> May 2003 1286.8952 1286.8011 1286.7707 1286.7263 1286.7621 1286.7002 1286.6909
#> Jun 2003 1294.0090 1293.8915 1293.8660 1293.8335 1293.8680 1293.8109 1293.8036
#> Jul 2003 1300.6261 1300.4711 1300.4562 1300.4253 1300.4555 1300.4107 1300.4068
#> Aug 2003 1306.6943 1306.4992 1306.4946 1306.4580 1306.4825 1306.4534 1306.4536
#> Sep 2003 1312.3560 1312.1303 1312.1335 1312.0889 1312.1059 1312.0941 1312.0986
#> Oct 2003 1317.7170 1317.4790 1317.4934 1317.4373 1317.4452 1317.4505 1317.4589
#> Nov 2003 1322.8593 1322.6322 1322.6602 1322.5951 1322.5925 1322.6134 1322.6248
#> Dec 2003 1328.2563 1328.0642 1328.1029 1328.0394 1328.0258 1328.0583 1328.0716
#> Jan 2004 1334.3923 1334.2535 1334.2933 1334.2472 1334.2246 1334.2609 1334.2739
#> Feb 2004 1341.0916 1341.0121 1341.0412 1341.0296 1341.0011 1341.0331 1341.0438
#> Mar 2004 1347.9483 1347.9242 1347.9310 1347.9681 1347.9374 1347.9584 1347.9651
#> Apr 2004 1354.5949 1354.6170 1354.5910 1354.6868 1354.6586 1354.6637 1354.6651
#> May 2004 1361.2491 1361.2996 1361.2379 1361.3899 1361.3688 1361.3554 1361.3514
#> Jun 2004 1368.2436 1368.2955 1368.2025 1368.3948 1368.3833 1368.3530 1368.3451
#> Jul 2004 1375.5559 1375.5883 1375.4709 1375.6947 1375.6905 1375.6503 1375.6424
#> Aug 2004 1382.9738 1382.9748 1382.8406 1383.0827 1383.0816 1383.0400 1383.0366
#> Sep 2004 1389.7533 1389.7102 1389.5707 1389.7975 1389.7990 1389.7604 1389.7638
#> Oct 2004 1395.1658 1395.0652 1394.9395 1395.1004 1395.1069 1395.0714 1395.0806
#> Nov 2004 1398.7301 1398.5740 1398.4807 1398.5253 1398.5407 1398.5081 1398.5199
#> Dec 2004 1400.4978 1400.3000 1400.2530 1400.1443 1400.1725 1400.1423 1400.1519
#> Jan 2005 1400.7103 1400.4901 1400.4957 1400.2200 1400.2641 1400.2354 1400.2376
#> Feb 2005 1399.6633 1399.4414 1399.4977 1399.0673 1399.1286 1399.1012 1399.0913
#> Mar 2005 1397.5963 1397.3912 1397.4882 1396.9375 1397.0160 1396.9894 1396.9647
#> Apr 2005 1394.7272 1394.5522 1394.6731 1394.0557 1394.1502 1394.1240 1394.0837
#> May 2005 1391.0085 1390.8675 1390.9996 1390.3674 1390.4739 1390.4504 1390.3980
#> Jun 2005 1387.0036 1386.9127 1387.0309 1386.4314 1386.5446 1386.5275 1386.4707
#> Jul 2005 1383.3030 1383.2620 1383.3527 1382.7874 1382.9038 1382.8975 1382.8476
#> Aug 2005 1380.3631 1380.3468 1380.4193 1379.8704 1379.9819 1379.9892 1379.9578
#> Sep 2005 1378.5366 1378.5085 1378.5773 1378.0317 1378.1297 1378.1490 1378.1425
#> Oct 2005 1378.3257 1378.2734 1378.3209 1377.8048 1377.8840 1377.9088 1377.9259
#> Nov 2005 1380.2951 1380.2076 1380.2088 1379.7651 1379.8226 1379.8429 1379.8765
#> Dec 2005 1384.2632 1384.1208 1384.0665 1383.7285 1383.7644 1383.7688 1383.8080
#> Jan 2006 1389.3553 1389.1348 1389.0376 1388.8203 1388.8360 1388.8168 1388.8499
#> Feb 2006 1394.8471 1394.5240 1394.4144 1394.3124 1394.3109 1394.2646 1394.2818
#> Mar 2006 1400.3697 1399.9241 1399.8412 1399.8311 1399.8177 1399.7452 1399.7405
#> Apr 2006 1405.6216 1405.0367 1405.0228 1405.0449 1405.0240 1404.9293 1404.9052
#> May 2006 1410.5993 1409.8920 1409.9613 1409.9604 1409.9359 1409.8281 1409.7912
#> Jun 2006 1415.0328 1414.2368 1414.3741 1414.3208 1414.2950 1414.1916 1414.1561
#> Jul 2006 1418.4917 1417.6398 1417.8543 1417.7001 1417.6740 1417.6026 1417.5880
#> Aug 2006 1421.0588 1420.1898 1420.5036 1420.2243 1420.1959 1420.1786 1420.1991
#> Sep 2006 1422.7482 1421.8945 1422.3364 1421.9558 1421.9218 1421.9690 1422.0268
#> Oct 2006 1424.1073 1423.2888 1423.8887 1423.4725 1423.4274 1423.5392 1423.6252
#> Nov 2006 1425.9778 1425.2144 1425.9789 1425.6284 1425.5688 1425.7335 1425.8286
#> Dec 2006 1429.0711 1428.3762 1429.2870 1429.1142 1429.0403 1429.2361 1429.3163
#> Jan 2007 1433.7939 1433.1772 1434.1950 1434.3005 1434.2151 1434.4176 1434.4601
#> Feb 2007 1440.3216 1439.7883 1440.8565 1441.3077 1441.2167 1441.4032 1441.3909
#> Mar 2007 1448.4435 1447.9927 1449.0465 1449.8581 1449.7701 1449.9251 1449.8530
#> Apr 2007 1458.0551 1457.6892 1458.6670 1459.7927 1459.7162 1459.8375 1459.7150
#> May 2007 1468.4954 1468.2181 1469.0792 1470.3972 1470.3402 1470.4369 1470.2886
#> Jun 2007 1479.1736 1478.9778 1479.6495 1480.9807 1480.9505 1481.0399 1480.9049
#> Jul 2007 1489.2858 1489.1265 1489.5682 1490.7361 1490.7297 1490.8104 1490.7145
#> Aug 2007 1498.2306 1498.0595 1498.2607 1499.1264 1499.1399 1499.2074 1499.1589
#> Sep 2007 1506.0487 1505.8580 1505.8394 1506.3003 1506.3301 1506.3784 1506.3827
#> Oct 2007 1512.6001 1512.4117 1512.2470 1512.2273 1512.2658 1512.3045 1512.3547
#> Nov 2007 1517.6797 1517.5152 1517.3380 1516.7850 1516.8182 1516.8715 1516.9687
#> Dec 2007 1521.1977 1521.0954 1521.0465 1519.9640 1519.9758 1520.0758 1520.2303
#> Jan 2008 1523.2448 1523.2480 1523.4437 1521.8915 1521.8684 1522.0459 1522.2709
#> Feb 2008 1524.0610 1524.2079 1524.7123 1522.7926 1522.7280 1523.0052 1523.3132
#> Mar 2008 1523.9482 1524.2708 1525.0824 1522.9170 1522.8120 1523.2000 1523.6002
#> Apr 2008 1523.3399 1523.8520 1524.8996 1522.6197 1522.4841 1522.9842 1523.4830
#> May 2008 1522.8738 1523.5940 1524.7627 1522.5057 1522.3573 1522.9662 1523.5667
#> Jun 2008 1523.0603 1523.9364 1525.1862 1523.0363 1522.8896 1523.5800 1524.2591
#> Jul 2008 1524.6875 1525.6952 1526.9069 1524.9873 1524.8543 1525.5865 1526.3123
#> Aug 2008 1528.4258 1529.5163 1530.5034 1528.9170 1528.7883 1529.5181 1530.2688
#> Sep 2008 1534.2043 1535.2541 1535.8324 1534.5541 1534.4242 1535.0901 1535.8579
#> Oct 2008 1541.8729 1542.7056 1542.7387 1541.6160 1541.4861 1542.0511 1542.8042
#> Nov 2008 1550.6207 1551.0523 1550.4741 1549.2782 1549.1553 1549.6155 1550.3389
#> Dec 2008 1559.4538 1559.3291 1558.1662 1556.6477 1556.5417 1556.9227 1557.6256
#> Jan 2009 1567.6590 1566.8865 1565.2515 1563.2007 1563.1234 1563.4739 1564.1791
#> Feb 2009 1574.4127 1572.9807 1571.0479 1568.3433 1568.3066 1568.6884 1569.4307
#> Mar 2009 1579.2966 1577.2817 1575.2515 1571.8884 1571.9021 1572.3782 1573.1940
#> Apr 2009 1582.0592 1579.6203 1577.6765 1573.7723 1573.8422 1574.4595 1575.3731
#> May 2009 1582.7725 1580.1570 1578.4164 1574.1797 1574.3018 1575.0697 1576.0853
#> Jun 2009 1581.7831 1579.2374 1577.6714 1573.3755 1573.5409 1574.4368 1575.5359
#> Jul 2009 1579.3711 1577.0791 1575.7279 1571.5309 1571.7285 1572.7020 1573.8359
#> Aug 2009 1575.8706 1573.9835 1572.9181 1568.9549 1569.1486 1570.1432 1571.2517
#> Sep 2009 1572.0265 1570.6546 1569.9425 1566.3794 1566.5334 1567.4324 1568.4434
#> Oct 2009 1568.1456 1567.3196 1567.0058 1564.0069 1564.1016 1564.8112 1565.5858
#> Nov 2009 1564.5979 1564.2727 1564.3654 1562.0698 1562.0995 1562.5649 1563.0083
#> Dec 2009 1561.4810 1561.5406 1562.0119 1560.5000 1560.4756 1560.6833 1560.7588
#> Jan 2010 1558.8484 1559.1307 1559.9231 1559.1988 1559.1455 1559.1275 1558.8540
#> Feb 2010 1556.7437 1557.0772 1558.1203 1558.1124 1558.0626 1557.8926 1557.3442
#> Mar 2010 1554.9477 1555.1862 1556.4104 1556.9916 1556.9789 1556.7550 1556.0474
#> Apr 2010 1553.3115 1553.3650 1554.7071 1555.7228 1555.7753 1555.5991 1554.8657
#> May 2010 1551.9288 1551.6657 1553.0674 1554.3609 1554.4951 1554.4501 1553.8163
#> Jun 2010 1550.7487 1550.1712 1551.6396 1553.0731 1553.2865 1553.4239 1552.9967
#> Jul 2010 1549.7698 1549.0459 1550.4527 1551.9868 1552.2581 1552.6007 1552.4736
#> Aug 2010 1548.6790 1548.0351 1549.2172 1550.6657 1551.0214 1551.5396 1551.7478
#> Sep 2010 1547.1800 1546.9153 1547.6621 1548.7616 1549.1999 1549.9341 1550.4297
#> Oct 2010 1545.2234 1545.6681 1545.7439 1546.2243 1546.6743 1547.5950 1548.4192
#> Nov 2010 1542.8222 1544.2788 1543.4494 1543.0698 1543.4123 1544.3585 1545.4614
#> Dec 2010 1540.4559 1543.1442 1541.2159 1539.7860 1539.8734 1540.5996 1541.7609
#> Jan 2011 1538.5150 1542.5401 1539.3815 1536.7857 1536.4653 1536.6829 1537.5752
#> Feb 2011 1537.2803 1542.6273 1538.1741 1534.3766 1533.5180 1532.9390 1533.1806
#> Mar 2011 1537.1986 1543.7473 1537.9947 1533.0239 1531.5411 1529.9274 1529.1403
#> Apr 2011 NaN 1545.7429 1538.7372 1532.6569 1530.5190 1527.7209 1525.6023
#> May 2011 NaN NaN 1539.9888 1532.8685 1530.1053 1526.0840 1522.4537
#> Jun 2011 NaN NaN NaN 1533.0211 1529.7166 1524.5449 1519.3661
#> Jul 2011 NaN NaN NaN NaN 1529.1085 1522.9305 1516.2888
#> Aug 2011 NaN NaN NaN NaN NaN 1521.3136 1513.3850
#> Sep 2011 NaN NaN NaN NaN NaN NaN 1510.7950
#> Oct 2011 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2011 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2011 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2012 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2012 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2012 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2012 NaN NaN NaN NaN NaN NaN NaN
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 22 Series 23 Series 24 Series 25 Series 26 Series 27 Series 28
#> Apr 1982 482.7098 482.7118 482.7150 482.7190 482.7183 482.7322 482.7322
#> May 1982 483.8025 483.8045 483.8081 483.8127 483.8119 483.8254 483.8252
#> Jun 1982 485.2070 485.2094 485.2141 485.2201 485.2190 485.2329 485.2324
#> Jul 1982 486.1285 486.1306 486.1347 486.1401 486.1390 486.1507 486.1501
#> Aug 1982 487.2685 487.2705 487.2748 487.2803 487.2792 487.2898 487.2891
#> Sep 1982 488.6421 488.6441 488.6485 488.6543 488.6532 488.6632 488.6623
#> Oct 1982 490.2416 490.2435 490.2479 490.2536 490.2524 490.2617 490.2608
#> Nov 1982 491.9519 491.9534 491.9568 491.9614 491.9605 491.9683 491.9676
#> Dec 1982 493.7438 493.7450 493.7474 493.7507 493.7500 493.7567 493.7563
#> Jan 1983 495.4902 495.4910 495.4923 495.4940 495.4937 495.4992 495.4992
#> Feb 1983 497.2468 497.2472 497.2473 497.2474 497.2474 497.2517 497.2520
#> Mar 1983 499.0843 499.0843 499.0833 499.0818 499.0822 499.0852 499.0858
#> Apr 1983 500.9733 500.9728 500.9707 500.9677 500.9684 500.9695 500.9705
#> May 1983 503.0707 503.0699 503.0669 503.0628 503.0638 503.0628 503.0639
#> Jun 1983 505.4399 505.4388 505.4352 505.4305 505.4315 505.4287 505.4299
#> Jul 1983 508.0944 508.0931 508.0896 508.0849 508.0860 508.0823 508.0834
#> Aug 1983 511.0072 511.0063 511.0038 511.0003 511.0011 510.9985 510.9993
#> Sep 1983 514.2379 514.2378 514.2370 514.2359 514.2362 514.2368 514.2372
#> Oct 1983 517.8952 517.8962 517.8980 517.9003 517.8999 517.9059 517.9057
#> Nov 1983 522.0518 522.0542 522.0591 522.0654 522.0642 522.0770 522.0762
#> Dec 1983 526.6418 526.6456 526.6534 526.6637 526.6617 526.6815 526.6802
#> Jan 1984 531.5879 531.5929 531.6034 531.6172 531.6145 531.6410 531.6392
#> Feb 1984 536.6792 536.6852 536.6979 536.7145 536.7112 536.7432 536.7410
#> Mar 1984 541.6770 541.6836 541.6975 541.7158 541.7122 541.7474 541.7450
#> Apr 1984 546.5274 546.5343 546.5488 546.5678 546.5640 546.6003 546.5977
#> May 1984 551.2455 551.2521 551.2664 551.2851 551.2814 551.3162 551.3137
#> Jun 1984 555.7832 555.7892 555.8023 555.8194 555.8160 555.8469 555.8445
#> Jul 1984 560.3089 560.3138 560.3246 560.3389 560.3360 560.3607 560.3585
#> Aug 1984 565.1170 565.1204 565.1281 565.1382 565.1362 565.1527 565.1511
#> Sep 1984 570.2899 570.2914 570.2952 570.3002 570.2991 570.3063 570.3055
#> Oct 1984 576.0913 576.0911 576.0909 576.0907 576.0908 576.0891 576.0890
#> Nov 1984 582.5904 582.5887 582.5851 582.5804 582.5813 582.5724 582.5730
#> Dec 1984 589.7678 589.7651 589.7589 589.7507 589.7523 589.7384 589.7396
#> Jan 1985 597.6299 597.6264 597.6185 597.6081 597.6102 597.5937 597.5953
#> Feb 1985 605.9468 605.9430 605.9341 605.9223 605.9247 605.9072 605.9092
#> Mar 1985 614.3586 614.3546 614.3451 614.3324 614.3350 614.3174 614.3196
#> Apr 1985 622.5704 622.5664 622.5564 622.5431 622.5459 622.5288 622.5313
#> May 1985 630.1812 630.1772 630.1671 630.1536 630.1565 630.1408 630.1434
#> Jun 1985 636.6038 636.6001 636.5900 636.5766 636.5795 636.5652 636.5680
#> Jul 1985 641.5303 641.5268 641.5173 641.5047 641.5074 641.4946 641.4972
#> Aug 1985 644.7311 644.7279 644.7194 644.7081 644.7105 644.6983 644.7006
#> Sep 1985 646.4959 646.4931 646.4863 646.4772 646.4791 646.4668 646.4684
#> Oct 1985 647.1966 647.1944 647.1898 647.1839 647.1850 647.1721 647.1728
#> Nov 1985 647.5057 647.5040 647.5020 647.4995 647.4998 647.4857 647.4852
#> Dec 1985 648.2022 648.2010 648.2015 648.2025 648.2020 648.1862 648.1846
#> Jan 1986 649.7524 649.7518 649.7547 649.7592 649.7578 649.7406 649.7379
#> Feb 1986 652.3154 652.3154 652.3209 652.3290 652.3267 652.3097 652.3059
#> Mar 1986 656.0085 656.0096 656.0182 656.0304 656.0273 656.0133 656.0085
#> Apr 1986 660.8501 660.8527 660.8650 660.8821 660.8779 660.8707 660.8651
#> May 1986 666.6169 666.6212 666.6372 666.6592 666.6541 666.6559 666.6496
#> Jun 1986 673.0356 673.0417 673.0614 673.0883 673.0822 673.0949 673.0881
#> Jul 1986 679.7988 679.8067 679.8296 679.8606 679.8537 679.8777 679.8706
#> Aug 1986 686.3370 686.3463 686.3714 686.4050 686.3978 686.4317 686.4246
#> Sep 1986 692.2695 692.2798 692.3061 692.3412 692.3337 692.3757 692.3689
#> Oct 1986 697.3935 697.4042 697.4304 697.4652 697.4579 697.5046 697.4983
#> Nov 1986 701.3561 701.3664 701.3908 701.4232 701.4165 701.4640 701.4584
#> Dec 1986 704.2183 704.2275 704.2490 704.2773 704.2715 704.3159 704.3112
#> Jan 1987 706.1558 706.1633 706.1802 706.2026 706.1981 706.2355 706.2320
#> Feb 1987 707.4483 707.4536 707.4653 707.4807 707.4777 707.5056 707.5034
#> Mar 1987 708.6728 708.6760 708.6822 708.6904 708.6888 708.7067 708.7058
#> Apr 1987 710.2369 710.2378 710.2389 710.2401 710.2400 710.2481 710.2484
#> May 1987 712.1795 712.1786 712.1754 712.1709 712.1720 712.1718 712.1731
#> Jun 1987 714.7577 714.7557 714.7496 714.7414 714.7432 714.7372 714.7391
#> Jul 1987 718.1096 718.1072 718.1002 718.0909 718.0929 718.0846 718.0866
#> Aug 1987 722.2669 722.2648 722.2590 722.2511 722.2528 722.2457 722.2474
#> Sep 1987 727.2711 727.2699 727.2664 727.2617 727.2627 727.2592 727.2603
#> Oct 1987 732.7589 732.7587 732.7575 732.7559 732.7563 732.7566 732.7570
#> Nov 1987 738.4047 738.4052 738.4060 738.4070 738.4069 738.4104 738.4104
#> Dec 1987 743.6934 743.6944 743.6965 743.6993 743.6987 743.7045 743.7042
#> Jan 1988 748.0814 748.0827 748.0855 748.0892 748.0885 748.0957 748.0952
#> Feb 1988 751.6757 751.6771 751.6801 751.6839 751.6832 751.6911 751.6906
#> Mar 1988 754.7456 754.7469 754.7495 754.7528 754.7522 754.7598 754.7594
#> Apr 1988 757.4111 757.4120 757.4137 757.4159 757.4155 757.4210 757.4208
#> May 1988 759.7901 759.7906 759.7913 759.7923 759.7921 759.7949 759.7949
#> Jun 1988 762.1257 762.1258 762.1259 762.1260 762.1260 762.1264 762.1264
#> Jul 1988 764.4388 764.4388 764.4389 764.4390 764.4390 764.4384 764.4383
#> Aug 1988 766.8094 766.8097 766.8107 766.8121 766.8118 766.8119 766.8115
#> Sep 1988 769.1813 769.1820 769.1843 769.1873 769.1866 769.1884 769.1877
#> Oct 1988 771.4621 771.4633 771.4666 771.4711 771.4701 771.4737 771.4727
#> Nov 1988 773.8828 773.8843 773.8885 773.8940 773.8928 773.8982 773.8970
#> Dec 1988 776.5704 776.5720 776.5763 776.5821 776.5809 776.5872 776.5861
#> Jan 1989 779.5566 779.5581 779.5620 779.5672 779.5661 779.5725 779.5715
#> Feb 1989 782.9653 782.9664 782.9692 782.9729 782.9721 782.9773 782.9766
#> Mar 1989 786.7978 786.7982 786.7990 786.8001 786.7999 786.8020 786.8019
#> Apr 1989 790.7096 790.7091 790.7076 790.7056 790.7060 790.7044 790.7048
#> May 1989 794.7801 794.7788 794.7753 794.7707 794.7717 794.7666 794.7675
#> Jun 1989 799.1197 799.1178 799.1129 799.1065 799.1078 799.0998 799.1010
#> Jul 1989 803.4189 803.4166 803.4110 803.4035 803.4051 803.3949 803.3962
#> Aug 1989 807.5990 807.5966 807.5908 807.5832 807.5848 807.5734 807.5747
#> Sep 1989 811.3248 811.3228 811.3182 811.3122 811.3134 811.3031 811.3040
#> Oct 1989 814.3001 814.2993 814.2979 814.2962 814.2965 814.2910 814.2911
#> Nov 1989 816.4990 816.5000 816.5034 816.5081 816.5070 816.5092 816.5080
#> Dec 1989 817.8617 817.8648 817.8732 817.8846 817.8821 817.8926 817.8901
#> Jan 1990 818.5618 818.5667 818.5798 818.5973 818.5936 818.6113 818.6077
#> Feb 1990 818.9603 818.9664 818.9829 819.0050 819.0002 819.0229 819.0184
#> Mar 1990 819.0852 819.0918 819.1099 819.1340 819.1288 819.1531 819.1480
#> Apr 1990 819.0998 819.1063 819.1244 819.1485 819.1432 819.1661 819.1610
#> May 1990 819.1496 819.1555 819.1723 819.1947 819.1898 819.2098 819.2049
#> Jun 1990 819.2528 819.2578 819.2720 819.2910 819.2868 819.3024 819.2981
#> Jul 1990 819.2938 819.2970 819.3070 819.3203 819.3173 819.3260 819.3229
#> Aug 1990 819.1874 819.1887 819.1936 819.2001 819.1986 819.1996 819.1978
#> Sep 1990 818.9401 818.9397 818.9400 818.9404 818.9402 818.9347 818.9342
#> Oct 1990 819.0210 819.0198 819.0178 819.0151 819.0156 819.0079 819.0080
#> Nov 1990 819.6477 819.6471 819.6464 819.6455 819.6456 819.6417 819.6416
#> Dec 1990 820.8195 820.8214 820.8266 820.8336 820.8321 820.8397 820.8382
#> Jan 1991 822.7521 822.7583 822.7739 822.7949 822.7905 822.8168 822.8128
#> Feb 1991 825.3709 825.3824 825.4116 825.4506 825.4424 825.4923 825.4849
#> Mar 1991 828.3648 828.3822 828.4265 828.4855 828.4730 828.5486 828.5374
#> Apr 1991 831.7788 831.8019 831.8606 831.9387 831.9223 832.0222 832.0073
#> May 1991 835.6141 835.6417 835.7117 835.8050 835.7854 835.9037 835.8860
#> Jun 1991 839.4670 839.4971 839.5740 839.6763 839.6547 839.7835 839.7640
#> Jul 1991 843.3355 843.3664 843.4453 843.5503 843.5281 843.6594 843.6393
#> Aug 1991 847.2269 847.2566 847.3328 847.4343 847.4128 847.5387 847.5192
#> Sep 1991 850.9636 850.9906 851.0598 851.1521 851.1326 851.2463 851.2285
#> Oct 1991 854.4388 854.4614 854.5198 854.5975 854.5810 854.6761 854.6611
#> Nov 1991 857.3154 857.3325 857.3768 857.4356 857.4232 857.4947 857.4833
#> Dec 1991 859.4697 859.4809 859.5100 859.5487 859.5405 859.5871 859.5796
#> Jan 1992 861.2145 861.2200 861.2347 861.2540 861.2499 861.2730 861.2692
#> Feb 1992 862.6930 862.6939 862.6965 862.6998 862.6991 862.7028 862.7021
#> Mar 1992 864.1939 864.1916 864.1859 864.1782 864.1798 864.1703 864.1718
#> Apr 1992 865.9833 865.9793 865.9689 865.9550 865.9580 865.9415 865.9443
#> May 1992 868.1367 868.1319 868.1195 868.1028 868.1064 868.0874 868.0907
#> Jun 1992 870.5212 870.5164 870.5038 870.4871 870.4907 870.4720 870.4754
#> Jul 1992 872.9271 872.9230 872.9119 872.8971 872.9003 872.8841 872.8871
#> Aug 1992 875.4757 875.4730 875.4654 875.4554 875.4576 875.4470 875.4490
#> Sep 1992 878.4813 878.4802 878.4770 878.4727 878.4737 878.4695 878.4704
#> Oct 1992 881.7390 881.7395 881.7405 881.7420 881.7417 881.7438 881.7435
#> Nov 1992 884.7789 884.7807 884.7854 884.7917 884.7903 884.7976 884.7963
#> Dec 1992 887.4133 887.4159 887.4228 887.4320 887.4300 887.4402 887.4383
#> Jan 1993 889.4103 889.4128 889.4195 889.4286 889.4266 889.4363 889.4344
#> Feb 1993 890.5910 890.5926 890.5972 890.6033 890.6020 890.6082 890.6069
#> Mar 1993 890.9809 890.9812 890.9824 890.9839 890.9835 890.9846 890.9842
#> Apr 1993 890.6598 890.6585 890.6555 890.6514 890.6523 890.6468 890.6476
#> May 1993 889.6939 889.6911 889.6843 889.6750 889.6770 889.6655 889.6673
#> Jun 1993 888.6104 888.6067 888.5974 888.5848 888.5875 888.5726 888.5751
#> Jul 1993 887.8737 887.8698 887.8598 887.8462 887.8492 887.8340 887.8367
#> Aug 1993 887.7960 887.7921 887.7821 887.7684 887.7714 887.7571 887.7599
#> Sep 1993 888.6468 888.6432 888.6338 888.6209 888.6237 888.6112 888.6140
#> Oct 1993 890.3605 890.3576 890.3498 890.3390 890.3413 890.3319 890.3343
#> Nov 1993 892.9402 892.9386 892.9343 892.9283 892.9296 892.9259 892.9274
#> Dec 1993 896.6827 896.6832 896.6844 896.6857 896.6854 896.6900 896.6900
#> Jan 1994 901.3988 901.4019 901.4101 901.4208 901.4185 901.4333 901.4313
#> Feb 1994 906.7853 906.7915 906.8075 906.8287 906.8241 906.8502 906.8461
#> Mar 1994 912.6068 912.6157 912.6391 912.6703 912.6636 912.7003 912.6941
#> Apr 1994 918.2837 918.2950 918.3246 918.3640 918.3556 918.4009 918.3931
#> May 1994 923.2338 923.2469 923.2815 923.3277 923.3178 923.3698 923.3606
#> Jun 1994 927.3392 927.3535 927.3918 927.4426 927.4318 927.4882 927.4779
#> Jul 1994 930.8110 930.8257 930.8655 930.9182 930.9070 930.9645 930.9538
#> Aug 1994 933.7672 933.7814 933.8208 933.8726 933.8617 933.9172 933.9066
#> Sep 1994 935.9452 935.9585 935.9958 936.0446 936.0343 936.0858 936.0758
#> Oct 1994 937.5263 937.5382 937.5719 937.6159 937.6067 937.6523 937.6431
#> Nov 1994 939.0408 939.0508 939.0793 939.1163 939.1086 939.1461 939.1383
#> Dec 1994 940.7487 940.7560 940.7772 940.8046 940.7989 940.8253 940.8194
#> Jan 1995 942.5866 942.5908 942.6034 942.6198 942.6163 942.6300 942.6263
#> Feb 1995 944.5163 944.5172 944.5209 944.5255 944.5246 944.5248 944.5235
#> Mar 1995 946.4520 946.4495 946.4441 946.4369 946.4385 946.4252 946.4263
#> Apr 1995 948.4678 948.4623 948.4489 948.4312 948.4350 948.4101 948.4134
#> May 1995 950.7405 950.7326 950.7127 950.6863 950.6920 950.6583 950.6635
#> Jun 1995 953.2342 953.2243 953.1991 953.1655 953.1727 953.1323 953.1391
#> Jul 1995 955.7631 955.7516 955.7227 955.6837 955.6920 955.6471 955.6551
#> Aug 1995 958.3061 958.2935 958.2622 958.2197 958.2287 958.1810 958.1897
#> Sep 1995 960.5980 960.5851 960.5537 960.5105 960.5196 960.4717 960.4805
#> Oct 1995 962.5506 962.5383 962.5088 962.4679 962.4765 962.4310 962.4392
#> Nov 1995 964.3385 964.3276 964.3019 964.2660 964.2734 964.2330 964.2401
#> Dec 1995 965.9348 965.9261 965.9059 965.8777 965.8834 965.8509 965.8564
#> Jan 1996 967.1589 967.1534 967.1404 967.1227 967.1261 967.1050 967.1084
#> Feb 1996 968.0131 968.0113 968.0068 968.0012 968.0019 967.9949 967.9959
#> Mar 1996 968.2482 968.2506 968.2549 968.2623 968.2602 968.2687 968.2673
#> Apr 1996 967.8646 967.8710 967.8841 967.9043 967.8994 967.9235 967.9198
#> May 1996 967.3301 967.3401 967.3613 967.3930 967.3857 967.4238 967.4179
#> Jun 1996 966.8780 966.8908 966.9183 966.9588 966.9496 966.9988 966.9914
#> Jul 1996 966.5787 966.5933 966.6251 966.6713 966.6609 966.7184 966.7100
#> Aug 1996 966.5225 966.5379 966.5716 966.6199 966.6091 966.6716 966.6628
#> Sep 1996 967.0637 967.0788 967.1117 967.1582 967.1478 967.2115 967.2032
#> Oct 1996 968.4434 968.4569 968.4864 968.5272 968.5181 968.5789 968.5717
#> Nov 1996 970.5082 970.5189 970.5426 970.5739 970.5670 970.6206 970.6153
#> Dec 1996 972.9665 972.9738 972.9906 973.0108 973.0066 973.0506 973.0477
#> Jan 1997 975.8269 975.8306 975.8407 975.8499 975.8482 975.8821 975.8814
#> Feb 1997 979.0546 979.0549 979.0589 979.0586 979.0591 979.0830 979.0844
#> Mar 1997 982.5493 982.5472 982.5469 982.5398 982.5419 982.5578 982.5608
#> Apr 1997 986.1839 986.1804 986.1780 986.1678 986.1707 986.1819 986.1857
#> May 1997 989.5435 989.5396 989.5370 989.5266 989.5296 989.5386 989.5425
#> Jun 1997 992.3720 992.3686 992.3679 992.3601 992.3626 992.3719 992.3754
#> Jul 1997 994.5762 994.5737 994.5764 994.5731 994.5749 994.5863 994.5887
#> Aug 1997 996.1004 996.0989 996.1062 996.1078 996.1089 996.1233 996.1244
#> Sep 1997 996.9842 996.9833 996.9947 997.0002 997.0007 997.0175 997.0175
#> Oct 1997 997.5629 997.5617 997.5753 997.5816 997.5823 997.5990 997.5984
#> Nov 1997 997.9638 997.9617 997.9746 997.9781 997.9798 997.9930 997.9923
#> Dec 1997 998.4165 998.4129 998.4216 998.4185 998.4219 998.4277 998.4276
#> Jan 1998 999.3126 999.3070 999.3078 999.2945 999.3003 999.2940 999.2952
#> Feb 1998 1000.8313 1000.8234 1000.8132 1000.7873 1000.7958 1000.7735 1000.7765
#> Mar 1998 1003.1869 1003.1770 1003.1543 1003.1155 1003.1264 1003.0866 1003.0914
#> Apr 1998 1006.5050 1006.4935 1006.4587 1006.4083 1006.4211 1006.3642 1006.3708
#> May 1998 1010.5990 1010.5865 1010.5411 1010.4817 1010.4959 1010.4249 1010.4329
#> Jun 1998 1014.9684 1014.9558 1014.9036 1014.8391 1014.8540 1014.7749 1014.7838
#> Jul 1998 1019.3522 1019.3404 1019.2862 1019.2215 1019.2363 1019.1564 1019.1654
#> Aug 1998 1023.2228 1023.2125 1023.1614 1023.1008 1023.1150 1023.0413 1023.0496
#> Sep 1998 1026.4463 1026.4379 1026.3953 1026.3431 1026.3562 1026.2959 1026.3027
#> Oct 1998 1028.8987 1028.8923 1028.8623 1028.8216 1028.8332 1028.7911 1028.7961
#> Nov 1998 1030.8215 1030.8168 1030.8023 1030.7750 1030.7848 1030.7641 1030.7669
#> Dec 1998 1032.6226 1032.6195 1032.6209 1032.6073 1032.6150 1032.6158 1032.6164
#> Jan 1999 1034.8667 1034.8643 1034.8792 1034.8770 1034.8829 1034.9010 1034.9000
#> Feb 1999 1037.8300 1037.8279 1037.8525 1037.8590 1037.8631 1037.8934 1037.8914
#> Mar 1999 1041.7764 1041.7742 1041.8036 1041.8151 1041.8178 1041.8538 1041.8516
#> Apr 1999 1046.6835 1046.6808 1046.7097 1046.7222 1046.7238 1046.7592 1046.7574
#> May 1999 1052.1629 1052.1597 1052.1842 1052.1951 1052.1956 1052.2254 1052.2244
#> Jun 1999 1058.0113 1058.0077 1058.0257 1058.0336 1058.0332 1058.0548 1058.0548
#> Jul 1999 1063.7989 1063.7957 1063.8056 1063.8105 1063.8090 1063.8207 1063.8215
#> Aug 1999 1069.0705 1069.0679 1069.0702 1069.0726 1069.0703 1069.0725 1069.0739
#> Sep 1999 1073.4566 1073.4546 1073.4498 1073.4491 1073.4467 1073.4399 1073.4418
#> Oct 1999 1076.6261 1076.6243 1076.6149 1076.6107 1076.6090 1076.5957 1076.5979
#> Nov 1999 1078.5738 1078.5712 1078.5615 1078.5539 1078.5537 1078.5388 1078.5409
#> Dec 1999 1079.6346 1079.6294 1079.6248 1079.6129 1079.6152 1079.6045 1079.6062
#> Jan 2000 1079.7709 1079.7613 1079.7673 1079.7509 1079.7564 1079.7561 1079.7573
#> Feb 2000 1079.2072 1079.1911 1079.2125 1079.1912 1079.2003 1079.2161 1079.2168
#> Mar 2000 1078.2404 1078.2161 1078.2559 1078.2294 1078.2418 1078.2777 1078.2780
#> Apr 2000 1077.2280 1077.1947 1077.2535 1077.2213 1077.2368 1077.2939 1077.2942
#> May 2000 1076.7127 1076.6704 1076.7467 1076.7093 1076.7272 1076.8045 1076.8051
#> Jun 2000 1076.9399 1076.8898 1076.9798 1076.9380 1076.9571 1077.0506 1077.0518
#> Jul 2000 1078.2031 1078.1470 1078.2448 1078.1992 1078.2185 1078.3220 1078.3240
#> Aug 2000 1080.5018 1080.4423 1080.5410 1080.4922 1080.5108 1080.6164 1080.6195
#> Sep 2000 1083.9297 1083.8698 1083.9630 1083.9123 1083.9296 1084.0299 1084.0342
#> Oct 2000 1088.3083 1088.2512 1088.3340 1088.2844 1088.2994 1088.3894 1088.3947
#> Nov 2000 1093.3523 1093.3012 1093.3703 1093.3251 1093.3372 1093.4138 1093.4198
#> Dec 2000 1098.5826 1098.5398 1098.5937 1098.5549 1098.5645 1098.6256 1098.6318
#> Jan 2001 1103.5089 1103.4760 1103.5157 1103.4853 1103.4928 1103.5394 1103.5454
#> Feb 2001 1108.0550 1108.0323 1108.0605 1108.0402 1108.0459 1108.0813 1108.0864
#> Mar 2001 1112.4296 1112.4163 1112.4363 1112.4264 1112.4302 1112.4585 1112.4623
#> Apr 2001 1116.8481 1116.8427 1116.8581 1116.8591 1116.8604 1116.8860 1116.8882
#> May 2001 1121.5530 1121.5537 1121.5672 1121.5787 1121.5766 1121.6035 1121.6038
#> Jun 2001 1126.8218 1126.8265 1126.8385 1126.8582 1126.8523 1126.8814 1126.8801
#> Jul 2001 1132.7382 1132.7452 1132.7553 1132.7811 1132.7707 1132.8025 1132.8002
#> Aug 2001 1139.4290 1139.4360 1139.4443 1139.4737 1139.4582 1139.4929 1139.4904
#> Sep 2001 1146.8179 1146.8238 1146.8296 1146.8598 1146.8400 1146.8760 1146.8737
#> Oct 2001 1154.9518 1154.9557 1154.9590 1154.9869 1154.9650 1154.9993 1154.9977
#> Nov 2001 1163.7418 1163.7433 1163.7441 1163.7656 1163.7452 1163.7736 1163.7731
#> Dec 2001 1172.6875 1172.6870 1172.6857 1172.6981 1172.6828 1172.7017 1172.7023
#> Jan 2002 1181.2865 1181.2847 1181.2822 1181.2844 1181.2773 1181.2843 1181.2858
#> Feb 2002 1189.4307 1189.4285 1189.4252 1189.4159 1189.4199 1189.4124 1189.4145
#> Mar 2002 1196.9847 1196.9830 1196.9795 1196.9587 1196.9755 1196.9523 1196.9545
#> Apr 2002 1203.8487 1203.8486 1203.8459 1203.8150 1203.8450 1203.8077 1203.8093
#> May 2002 1210.0633 1210.0654 1210.0640 1210.0255 1210.0672 1210.0183 1210.0188
#> Jun 2002 1215.7671 1215.7714 1215.7714 1215.7277 1215.7783 1215.7216 1215.7207
#> Jul 2002 1221.4396 1221.4454 1221.4468 1221.4010 1221.4560 1221.3964 1221.3941
#> Aug 2002 1227.4107 1227.4174 1227.4201 1227.3765 1227.4306 1227.3743 1227.3710
#> Sep 2002 1233.8970 1233.9039 1233.9086 1233.8706 1233.9195 1233.8722 1233.8684
#> Oct 2002 1240.7097 1240.7159 1240.7220 1240.6903 1240.7321 1240.6949 1240.6916
#> Nov 2002 1247.3733 1247.3776 1247.3824 1247.3534 1247.3891 1247.3575 1247.3559
#> Dec 2002 1253.5504 1253.5522 1253.5521 1253.5227 1253.5531 1253.5215 1253.5226
#> Jan 2003 1259.6068 1259.6057 1259.5975 1259.5633 1259.5907 1259.5525 1259.5566
#> Feb 2003 1265.8530 1265.8493 1265.8308 1265.7871 1265.8156 1265.7635 1265.7705
#> Mar 2003 1272.4358 1272.4306 1272.4019 1272.3447 1272.3798 1272.3087 1272.3175
#> Apr 2003 1279.4513 1279.4459 1279.4090 1279.3353 1279.3824 1279.2898 1279.2988
#> May 2003 1286.7198 1286.7153 1286.6732 1286.5814 1286.6445 1286.5308 1286.5381
#> Jun 2003 1293.8366 1293.8341 1293.7912 1293.6839 1293.7638 1293.6335 1293.6374
#> Jul 2003 1300.4410 1300.4412 1300.4014 1300.2844 1300.3776 1300.2393 1300.2394
#> Aug 2003 1306.4862 1306.4891 1306.4546 1306.3340 1306.4357 1306.2968 1306.2938
#> Sep 2003 1312.1259 1312.1312 1312.1038 1311.9857 1312.0909 1311.9585 1311.9540
#> Oct 2003 1317.4775 1317.4847 1317.4658 1317.3566 1317.4599 1317.3409 1317.3363
#> Nov 2003 1322.6316 1322.6401 1322.6306 1322.5364 1322.6325 1322.5331 1322.5299
#> Dec 2003 1328.0644 1328.0734 1328.0731 1327.9970 1328.0827 1328.0054 1328.0052
#> Jan 2004 1334.2531 1334.2613 1334.2682 1334.2094 1334.2834 1334.2261 1334.2302
#> Feb 2004 1341.0115 1341.0178 1341.0291 1340.9855 1341.0474 1341.0064 1341.0157
#> Mar 2004 1347.9253 1347.9288 1347.9419 1347.9104 1347.9604 1347.9312 1347.9455
#> Apr 2004 1354.6243 1354.6246 1354.6371 1354.6142 1354.6532 1354.6305 1354.6476
#> May 2004 1361.3162 1361.3129 1361.3238 1361.3055 1361.3348 1361.3132 1361.3306
#> Jun 2004 1368.3204 1368.3139 1368.3230 1368.3074 1368.3279 1368.3054 1368.3212
#> Jul 2004 1375.6289 1375.6201 1375.6291 1375.6116 1375.6297 1375.6037 1375.6166
#> Aug 2004 1383.0333 1383.0239 1383.0336 1383.0119 1383.0323 1383.0036 1383.0130
#> Sep 2004 1389.7704 1389.7617 1389.7690 1389.7443 1389.7657 1389.7379 1389.7446
#> Oct 2004 1395.0969 1395.0897 1395.0896 1395.0681 1395.0817 1395.0630 1395.0686
#> Nov 2004 1398.5446 1398.5395 1398.5268 1398.5188 1398.5112 1398.5136 1398.5199
#> Dec 2004 1400.1830 1400.1803 1400.1511 1400.1662 1400.1242 1400.1594 1400.1674
#> Jan 2005 1400.2725 1400.2722 1400.2246 1400.2678 1400.1835 1400.2577 1400.2678
#> Feb 2005 1399.1278 1399.1297 1399.0647 1399.1375 1399.0084 1399.1232 1399.1346
#> Mar 2005 1397.0021 1397.0054 1396.9265 1397.0265 1396.8560 1397.0074 1397.0182
#> Apr 2005 1394.1248 1394.1288 1394.0419 1394.1629 1393.9599 1394.1390 1394.1455
#> May 2005 1390.4454 1390.4494 1390.3632 1390.4973 1390.2740 1390.4688 1390.4669
#> Jun 2005 1386.5258 1386.5295 1386.4515 1386.5902 1386.3616 1386.5592 1386.5471
#> Jul 2005 1382.9119 1382.9155 1382.8486 1382.9809 1382.7617 1382.9493 1382.9285
#> Aug 2005 1380.0309 1380.0351 1379.9802 1380.0966 1379.9021 1380.0668 1380.0410
#> Sep 2005 1378.2209 1378.2258 1378.1833 1378.2785 1378.1204 1378.2521 1378.2267
#> Oct 2005 1378.0033 1378.0086 1377.9764 1378.0456 1377.9325 1378.0225 1378.0032
#> Nov 2005 1379.9451 1379.9493 1379.9250 1379.9675 1379.9012 1379.9456 1379.9383
#> Dec 2005 1383.8609 1383.8624 1383.8432 1383.8633 1383.8385 1383.8398 1383.8489
#> Jan 2006 1388.8822 1388.8798 1388.8647 1388.8726 1388.8765 1388.8457 1388.8728
#> Feb 2006 1394.2917 1394.2846 1394.2697 1394.2718 1394.2868 1394.2390 1394.2829
#> Mar 2006 1399.7314 1399.7194 1399.7033 1399.7070 1399.7174 1399.6671 1399.7235
#> Apr 2006 1404.8773 1404.8609 1404.8445 1404.8575 1404.8517 1404.8099 1404.8772
#> May 2006 1409.7477 1409.7289 1409.7171 1409.7462 1409.7193 1409.6931 1409.7702
#> Jun 2006 1414.1108 1414.0924 1414.0973 1414.1496 1414.1058 1414.0982 1414.1784
#> Jul 2006 1417.5630 1417.5496 1417.5831 1417.6606 1417.6093 1417.6237 1417.6924
#> Aug 2006 1420.2202 1420.2161 1420.2866 1420.3930 1420.3397 1420.3810 1420.4179
#> Sep 2006 1422.1127 1422.1199 1422.2335 1422.3686 1422.3185 1422.3870 1422.3716
#> Oct 2006 1423.7821 1423.8002 1423.9606 1424.1218 1424.0785 1424.1721 1424.0879
#> Nov 2006 1426.0503 1426.0764 1426.2816 1426.4594 1426.4256 1426.5367 1426.3754
#> Dec 2006 1429.5861 1429.6153 1429.8565 1430.0357 1430.0131 1430.1302 1429.8935
#> Jan 2007 1434.7541 1434.7808 1435.0450 1435.2083 1435.1969 1435.3095 1435.0086
#> Feb 2007 1441.6825 1441.7018 1441.9640 1442.0804 1442.0774 1442.1748 1441.8299
#> Mar 2007 1450.1196 1450.1280 1450.3661 1450.4133 1450.4170 1450.4920 1450.1277
#> Apr 2007 1459.9430 1459.9402 1460.1434 1460.1167 1460.1253 1460.1773 1459.8165
#> May 2007 1470.4732 1470.4624 1470.6352 1470.5433 1470.5544 1470.5833 1470.2448
#> Jun 2007 1481.0541 1481.0405 1481.1944 1481.0644 1481.0772 1481.0876 1480.7903
#> Jul 2007 1490.8397 1490.8291 1490.9753 1490.8533 1490.8645 1490.8614 1490.6210
#> Aug 2007 1499.2646 1499.2606 1499.4067 1499.3340 1499.3404 1499.3310 1499.1573
#> Sep 2007 1506.4736 1506.4794 1506.6226 1506.6225 1506.6246 1506.6176 1506.5116
#> Oct 2007 1512.4387 1512.4574 1512.5843 1512.6577 1512.6605 1512.6631 1512.6164
#> Nov 2007 1517.0411 1517.0744 1517.1653 1517.2926 1517.3025 1517.3182 1517.3159
#> Dec 2007 1520.2909 1520.3322 1520.3650 1520.5076 1520.5327 1520.5617 1520.5858
#> Jan 2008 1522.3269 1522.3700 1522.3327 1522.4386 1522.4870 1522.5252 1522.5593
#> Feb 2008 1523.3728 1523.4148 1523.2853 1523.2708 1523.3464 1523.3844 1523.4196
#> Mar 2008 1523.6747 1523.7159 1523.4868 1523.2920 1523.3977 1523.4298 1523.4625
#> Apr 2008 1523.5893 1523.6336 1523.3193 1522.9286 1523.0646 1523.1094 1523.1394
#> May 2008 1523.7336 1523.7873 1523.4339 1522.8756 1523.0411 1523.1053 1523.1193
#> Jun 2008 1524.5024 1524.5731 1524.2225 1523.5526 1523.7425 1523.8210 1523.8006
#> Jul 2008 1526.6352 1526.7259 1526.4227 1525.7323 1525.9398 1526.0229 1525.9592
#> Aug 2008 1530.6705 1530.7802 1530.5660 1529.9739 1530.1958 1530.2680 1530.1681
#> Sep 2008 1536.3303 1536.4548 1536.3608 1535.9883 1536.2238 1536.2713 1536.1574
#> Oct 2008 1543.3305 1543.4630 1543.5035 1543.4463 1543.6961 1543.7070 1543.6116
#> Nov 2008 1550.8595 1550.9896 1551.1588 1551.4623 1551.7302 1551.6953 1551.6534
#> Dec 2008 1558.0882 1558.1912 1558.4649 1559.1121 1559.4006 1559.3152 1559.3578
#> Jan 2009 1564.5576 1564.6146 1564.9768 1565.8874 1566.1960 1566.0588 1566.2067
#> Feb 2009 1569.7321 1569.7369 1570.2150 1571.3126 1571.6478 1571.4713 1571.7235
#> Mar 2009 1573.4499 1573.4079 1574.0095 1575.1875 1575.5635 1575.3652 1575.7048
#> Apr 2009 1575.6289 1575.5570 1576.2389 1577.3369 1577.7460 1577.5880 1577.9885
#> May 2009 1576.3850 1576.3057 1576.9434 1577.7891 1578.2034 1578.1534 1578.5823
#> Jun 2009 1575.9136 1575.8529 1576.3035 1576.7344 1577.1081 1577.1895 1577.6196
#> Jul 2009 1574.3028 1574.2884 1574.4284 1574.2986 1574.5743 1574.7539 1575.1574
#> Aug 2009 1571.7961 1571.8516 1571.6056 1570.8098 1570.9336 1571.1261 1571.4754
#> Sep 2009 1569.0311 1569.1695 1568.5260 1567.0356 1566.9670 1567.0490 1567.3204
#> Oct 2009 1566.1554 1566.3727 1565.3877 1563.2546 1562.9727 1562.8100 1562.9898
#> Nov 2009 1563.4304 1563.7039 1562.4913 1559.8375 1559.3463 1558.8245 1558.9118
#> Dec 2009 1560.9402 1561.2144 1559.9273 1556.9204 1556.2506 1555.3025 1555.3100
#> Jan 2010 1558.7531 1558.9821 1557.8195 1554.6438 1553.8493 1552.4721 1552.4228
#> Feb 2010 1556.9690 1557.1229 1556.2426 1553.0176 1552.1662 1550.4296 1550.3510
#> Mar 2010 1555.4637 1555.5294 1555.0598 1551.9392 1551.1305 1549.1731 1549.0857
#> Apr 2010 1554.1818 1554.1661 1554.1802 1551.3238 1550.6426 1548.7194 1548.6338
#> May 2010 1553.1603 1553.0892 1553.5952 1551.1348 1550.6307 1548.9534 1548.8627
#> Jun 2010 1552.4988 1552.4092 1553.3328 1551.3785 1551.0672 1549.7941 1549.6943
#> Jul 2010 1552.2512 1552.1847 1553.3937 1552.0246 1551.8910 1551.1087 1550.9963
#> Aug 2010 1551.8676 1551.8641 1553.1735 1552.4096 1552.4084 1552.1124 1551.9770
#> Sep 2010 1550.8805 1550.9641 1552.1822 1551.9820 1552.0456 1552.1427 1551.9703
#> Oct 2010 1549.1105 1549.2813 1550.2525 1550.5233 1550.5781 1550.9057 1550.6824
#> Nov 2010 1546.3934 1546.6253 1547.2701 1547.8893 1547.8719 1548.2319 1547.9478
#> Dec 2010 1542.8683 1543.1860 1543.5224 1544.3615 1544.2332 1544.4337 1544.0866
#> Jan 2011 1538.6543 1539.0539 1539.1115 1540.0556 1539.8157 1539.7202 1539.3179
#> Feb 2011 1533.9427 1534.3539 1534.2096 1535.2114 1534.8929 1534.4539 1534.0176
#> Mar 2011 1529.2525 1529.5602 1529.3237 1530.2600 1529.8640 1529.1330 1528.7002
#> Apr 2011 1524.7443 1524.8066 1524.6458 1525.3676 1524.9202 1523.8661 1523.4764
#> May 2011 1520.3704 1520.0414 1520.1784 1520.5355 1520.1090 1518.7946 1518.5103
#> Jun 2011 1515.9049 1515.0609 1515.7603 1515.6032 1515.2914 1513.9438 1513.7974
#> Jul 2011 1511.4043 1509.9594 1511.4369 1510.6441 1510.5511 1509.5204 1509.4909
#> Aug 2011 1507.1303 1505.0430 1507.4382 1505.9385 1506.1641 1505.8677 1505.8902
#> Sep 2011 1503.2989 1500.5748 1503.9314 1501.7016 1502.3264 1503.1875 1503.1656
#> Oct 2011 1500.1119 1496.7976 1501.0633 1498.1166 1499.1929 1501.5669 1501.3893
#> Nov 2011 NaN 1494.0239 1499.0669 1495.4346 1496.9829 1501.1048 1500.6678
#> Dec 2011 NaN NaN 1497.8988 1493.6113 1495.6233 1501.5841 1500.8108
#> Jan 2012 NaN NaN NaN 1492.3166 1494.7612 1502.5109 1501.3657
#> Feb 2012 NaN NaN NaN NaN 1493.9404 1503.3123 1501.8061
#> Mar 2012 NaN NaN NaN NaN NaN 1503.6824 1501.8650
#> Apr 2012 NaN NaN NaN NaN NaN NaN 1501.2997
#> May 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2012 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2012 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2012 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2012 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2012 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 29 Series 30 Series 31 Series 32 Series 33 Series 34 Series 35
#> Apr 1982 482.7189 482.7302 482.7306 482.7261 482.7290 482.7296 482.7307
#> May 1982 483.8110 483.8251 483.8275 483.8227 483.8261 483.8268 483.8280
#> Jun 1982 485.2151 485.2356 485.2421 485.2361 485.2408 485.2417 485.2431
#> Jul 1982 486.1350 486.1536 486.1601 486.1549 486.1591 486.1599 486.1611
#> Aug 1982 487.2741 487.2941 487.3020 487.2968 487.3013 487.3021 487.3032
#> Sep 1982 488.6469 488.6686 488.6779 488.6725 488.6773 488.6781 488.6792
#> Oct 1982 490.2460 490.2674 490.2769 490.2717 490.2764 490.2773 490.2783
#> Nov 1982 491.9557 491.9724 491.9796 491.9754 491.9791 491.9798 491.9807
#> Dec 1982 493.7473 493.7589 493.7632 493.7601 493.7627 493.7632 493.7639
#> Jan 1983 495.4937 495.4988 495.4995 495.4975 495.4988 495.4991 495.4996
#> Feb 1983 497.2501 497.2486 497.2454 497.2447 497.2447 497.2447 497.2450
#> Mar 1983 499.0875 499.0796 499.0729 499.0735 499.0721 499.0719 499.0720
#> Apr 1983 500.9758 500.9621 500.9524 500.9543 500.9517 500.9513 500.9511
#> May 1983 503.0722 503.0544 503.0430 503.0459 503.0424 503.0419 503.0415
#> Jun 1983 505.4403 505.4201 505.4082 505.4118 505.4078 505.4071 505.4065
#> Jul 1983 508.0940 508.0745 508.0633 508.0671 508.0631 508.0624 508.0618
#> Aug 1983 511.0071 510.9927 510.9843 510.9871 510.9841 510.9836 510.9832
#> Sep 1983 514.2391 514.2338 514.2300 514.2306 514.2296 514.2295 514.2294
#> Oct 1983 517.8989 517.9064 517.9084 517.9060 517.9078 517.9082 517.9087
#> Nov 1983 522.0588 522.0812 522.0897 522.0837 522.0887 522.0897 522.0910
#> Dec 1983 526.6524 526.6891 526.7034 526.6938 526.7019 526.7034 526.7055
#> Jan 1984 531.6020 531.6512 531.6706 531.6577 531.6685 531.6707 531.6734
#> Feb 1984 536.6962 536.7554 536.7786 536.7631 536.7762 536.7787 536.7820
#> Mar 1984 541.6956 541.7609 541.7865 541.7694 541.7838 541.7866 541.7903
#> Apr 1984 546.5465 546.6147 546.6417 546.6240 546.6390 546.6419 546.6457
#> May 1984 551.2635 551.3311 551.3584 551.3410 551.3559 551.3587 551.3624
#> Jun 1984 555.7989 555.8613 555.8872 555.8714 555.8850 555.8877 555.8909
#> Jul 1984 560.3210 560.3735 560.3960 560.3829 560.3944 560.3966 560.3992
#> Aug 1984 565.1248 565.1627 565.1795 565.1703 565.1785 565.1801 565.1819
#> Sep 1984 570.2930 570.3119 570.3209 570.3166 570.3206 570.3214 570.3222
#> Oct 1984 576.0900 576.0900 576.0908 576.0912 576.0911 576.0911 576.0910
#> Nov 1984 582.5857 582.5688 582.5621 582.5665 582.5627 582.5620 582.5611
#> Dec 1984 589.7611 589.7309 589.7178 589.7253 589.7187 589.7175 589.7160
#> Jan 1985 597.6222 597.5831 597.5654 597.5748 597.5663 597.5648 597.5629
#> Feb 1985 605.9392 605.8941 605.8730 605.8835 605.8738 605.8720 605.8700
#> Mar 1985 614.3514 614.3024 614.2787 614.2899 614.2794 614.2775 614.2754
#> Apr 1985 622.5640 622.5121 622.4861 622.4976 622.4866 622.4846 622.4825
#> May 1985 630.1760 630.1224 630.0945 630.1060 630.0947 630.0927 630.0906
#> Jun 1985 636.5999 636.5458 636.5168 636.5281 636.5168 636.5147 636.5127
#> Jul 1985 641.5271 641.4757 641.4479 641.4585 641.4477 641.4458 641.4440
#> Aug 1985 644.7276 644.6820 644.6577 644.6673 644.6577 644.6560 644.6543
#> Sep 1985 646.4911 646.4557 646.4383 646.4463 646.4387 646.4373 646.4358
#> Oct 1985 647.1896 647.1686 647.1612 647.1671 647.1623 647.1614 647.1600
#> Nov 1985 647.4957 647.4911 647.4954 647.4990 647.4974 647.4969 647.4958
#> Dec 1985 648.1888 648.2010 648.2174 648.2187 648.2203 648.2204 648.2195
#> Jan 1986 649.7359 649.7645 649.7924 649.7915 649.7963 649.7968 649.7961
#> Feb 1986 652.2969 652.3416 652.3802 652.3767 652.3847 652.3857 652.3854
#> Mar 1986 655.9902 656.0522 656.1010 656.0942 656.1057 656.1074 656.1075
#> Apr 1986 660.8345 660.9155 660.9735 660.9624 660.9780 660.9804 660.9814
#> May 1986 666.6058 666.7048 666.7701 666.7543 666.7738 666.7770 666.7790
#> Jun 1986 673.0306 673.1461 673.2169 673.1964 673.2196 673.2236 673.2266
#> Jul 1986 679.8007 679.9294 680.0032 679.9784 680.0048 680.0094 680.0134
#> Aug 1986 686.3454 686.4817 686.5554 686.5274 686.5558 686.5608 686.5657
#> Sep 1986 692.2837 692.4226 692.4940 692.4640 692.4932 692.4985 692.5040
#> Oct 1986 697.4118 697.5471 697.6136 697.5831 697.6119 697.6172 697.6230
#> Nov 1986 701.3763 701.5004 701.5590 701.5302 701.5568 701.5617 701.5673
#> Dec 1986 704.2383 704.3454 704.3942 704.3687 704.3918 704.3961 704.4012
#> Jan 1987 706.1735 706.2570 706.2937 706.2732 706.2914 706.2948 706.2990
#> Feb 1987 707.4623 707.5187 707.5420 707.5276 707.5401 707.5424 707.5454
#> Mar 1987 708.6827 708.7112 708.7212 708.7131 708.7196 708.7209 708.7226
#> Apr 1987 710.2427 710.2446 710.2417 710.2398 710.2405 710.2408 710.2414
#> May 1987 712.1818 712.1618 712.1484 712.1516 712.1476 712.1470 712.1466
#> Jun 1987 714.7575 714.7232 714.7034 714.7099 714.7029 714.7017 714.7006
#> Jul 1987 718.1082 718.0698 718.0485 718.0561 718.0482 718.0468 718.0455
#> Aug 1987 722.2656 722.2333 722.2154 722.2219 722.2152 722.2140 722.2129
#> Sep 1987 727.2709 727.2511 727.2397 727.2435 727.2394 727.2387 727.2381
#> Oct 1987 732.7601 732.7527 732.7475 732.7487 732.7472 732.7470 732.7468
#> Nov 1987 738.4070 738.4099 738.4101 738.4089 738.4097 738.4098 738.4101
#> Dec 1987 743.6965 743.7062 743.7098 743.7072 743.7093 743.7097 743.7103
#> Jan 1988 748.0852 748.0983 748.1034 748.0999 748.1028 748.1034 748.1041
#> Feb 1988 751.6799 751.6936 751.6987 751.6950 751.6980 751.6986 751.6994
#> Mar 1988 754.7498 754.7614 754.7652 754.7619 754.7646 754.7651 754.7658
#> Apr 1988 757.4144 757.4216 757.4235 757.4213 757.4229 757.4233 757.4238
#> May 1988 759.7919 759.7949 759.7954 759.7943 759.7950 759.7952 759.7955
#> Jun 1988 762.1260 762.1263 762.1262 762.1260 762.1261 762.1261 762.1262
#> Jul 1988 764.4382 764.4392 764.4402 764.4401 764.4403 764.4404 764.4403
#> Aug 1988 766.8087 766.8150 766.8192 766.8181 766.8194 766.8196 766.8197
#> Sep 1988 769.1810 769.1940 769.2020 769.1995 769.2022 769.2027 769.2031
#> Oct 1988 771.4624 771.4812 771.4921 771.4884 771.4923 771.4930 771.4936
#> Nov 1988 773.8840 773.9068 773.9195 773.9148 773.9197 773.9205 773.9213
#> Dec 1988 776.5722 776.5957 776.6083 776.6033 776.6083 776.6092 776.6101
#> Jan 1989 779.5588 779.5795 779.5903 779.5857 779.5902 779.5910 779.5919
#> Feb 1989 782.9673 782.9819 782.9892 782.9858 782.9890 782.9896 782.9903
#> Mar 1989 786.7989 786.8030 786.8049 786.8037 786.8047 786.8049 786.8052
#> Apr 1989 790.7094 790.7011 790.6966 790.6981 790.6965 790.6962 790.6959
#> May 1989 794.7786 794.7599 794.7500 794.7539 794.7500 794.7493 794.7487
#> Jun 1989 799.1168 799.0912 799.0782 799.0837 799.0783 799.0774 799.0763
#> Jul 1989 803.4148 803.3857 803.3714 803.3779 803.3717 803.3706 803.3693
#> Aug 1989 807.5940 807.5649 807.5512 807.5580 807.5517 807.5506 807.5492
#> Sep 1989 811.3198 811.2974 811.2877 811.2932 811.2884 811.2875 811.2863
#> Oct 1989 814.2966 814.2914 814.2909 814.2927 814.2915 814.2912 814.2907
#> Nov 1989 816.4981 816.5181 816.5304 816.5269 816.5309 816.5316 816.5321
#> Dec 1989 817.8637 817.9104 817.9363 817.9270 817.9366 817.9383 817.9399
#> Jan 1990 818.5663 818.6374 818.6757 818.6613 818.6760 818.6786 818.6811
#> Feb 1990 818.9663 819.0553 819.1029 819.0848 819.1031 819.1064 819.1096
#> Mar 1990 819.0913 819.1888 819.2412 819.2215 819.2415 819.2450 819.2485
#> Apr 1990 819.1048 819.2030 819.2564 819.2369 819.2569 819.2605 819.2638
#> May 1990 819.1532 819.2450 819.2956 819.2777 819.2963 819.2996 819.3026
#> Jun 1990 819.2548 819.3334 819.3774 819.3625 819.3783 819.3810 819.3835
#> Jul 1990 819.2934 819.3494 819.3819 819.3718 819.3829 819.3848 819.3864
#> Aug 1990 819.1845 819.2137 819.2321 819.2277 819.2332 819.2341 819.2346
#> Sep 1990 818.9355 818.9398 818.9451 818.9459 818.9462 818.9462 818.9458
#> Oct 1990 819.0163 819.0079 819.0060 819.0091 819.0069 819.0064 819.0057
#> Nov 1990 819.6450 819.6429 819.6435 819.6448 819.6441 819.6440 819.6436
#> Dec 1990 820.8216 820.8502 820.8659 820.8599 820.8660 820.8671 820.8682
#> Jan 1991 822.7615 822.8448 822.8880 822.8696 822.8875 822.8907 822.8941
#> Feb 1991 825.3891 825.5433 825.6224 825.5880 825.6212 825.6272 825.6336
#> Mar 1991 828.3924 828.6256 828.7447 828.6928 828.7429 828.7520 828.7616
#> Apr 1991 831.8153 832.1241 832.2817 832.2132 832.2794 832.2914 832.3042
#> May 1991 835.6571 836.0260 836.2146 836.1330 836.2119 836.2262 836.2414
#> Jun 1991 839.5133 839.9184 840.1260 840.0367 840.1233 840.1389 840.1556
#> Jul 1991 843.3824 843.7986 844.0124 843.9208 844.0097 844.0258 844.0428
#> Aug 1991 847.2714 847.6738 847.8810 847.7927 847.8785 847.8941 847.9104
#> Sep 1991 851.0035 851.3697 851.5585 851.4784 851.5564 851.5705 851.5853
#> Oct 1991 854.4720 854.7805 854.9399 854.8726 854.9383 854.9501 854.9625
#> Nov 1991 857.3402 857.5742 857.6954 857.6446 857.6943 857.7033 857.7126
#> Dec 1991 859.4858 859.6396 859.7194 859.6861 859.7187 859.7246 859.7307
#> Jan 1992 861.2223 861.2995 861.3397 861.3231 861.3394 861.3423 861.3454
#> Feb 1992 862.6941 862.7077 862.7149 862.7121 862.7149 862.7154 862.7159
#> Mar 1992 864.1906 864.1601 864.1444 864.1511 864.1446 864.1434 864.1422
#> Apr 1992 865.9778 865.9225 865.8937 865.9056 865.8939 865.8918 865.8896
#> May 1992 868.1307 868.0640 868.0288 868.0429 868.0289 868.0264 868.0239
#> Jun 1992 870.5154 870.4480 870.4122 870.4263 870.4122 870.4097 870.4071
#> Jul 1992 872.9223 872.8628 872.8311 872.8434 872.8310 872.8288 872.8266
#> Aug 1992 875.4727 875.4322 875.4104 875.4187 875.4102 875.4087 875.4073
#> Sep 1992 878.4803 878.4628 878.4532 878.4567 878.4531 878.4524 878.4518
#> Oct 1992 881.7397 881.7455 881.7482 881.7469 881.7481 881.7483 881.7486
#> Nov 1992 884.7810 884.8064 884.8197 884.8143 884.8196 884.8206 884.8215
#> Dec 1992 887.4162 887.4534 887.4732 887.4653 887.4731 887.4745 887.4759
#> Jan 1993 889.4130 889.4494 889.4690 889.4613 889.4690 889.4703 889.4717
#> Feb 1993 890.5925 890.6174 890.6311 890.6259 890.6312 890.6321 890.6330
#> Mar 1993 890.9809 890.9874 890.9914 890.9902 890.9915 890.9917 890.9919
#> Apr 1993 890.6578 890.6419 890.6343 890.6378 890.6345 890.6339 890.6332
#> May 1993 889.6901 889.6535 889.6350 889.6430 889.6353 889.6339 889.6325
#> Jun 1993 888.6057 888.5558 888.5300 888.5408 888.5303 888.5284 888.5265
#> Jul 1993 887.8694 887.8153 887.7869 887.7985 887.7872 887.7851 887.7831
#> Aug 1993 887.7925 887.7376 887.7084 887.7200 887.7085 887.7065 887.7045
#> Sep 1993 888.6444 888.5922 888.5639 888.5747 888.5639 888.5620 888.5602
#> Oct 1993 890.3594 890.3153 890.2911 890.3000 890.2909 890.2894 890.2879
#> Nov 1993 892.9409 892.9155 892.9009 892.9056 892.9005 892.8997 892.8989
#> Dec 1993 896.6858 896.6897 896.6904 896.6890 896.6899 896.6902 896.6906
#> Jan 1994 901.4048 901.4463 901.4669 901.4576 901.4664 901.4680 901.4697
#> Feb 1994 906.7945 906.8783 906.9211 906.9032 906.9207 906.9238 906.9271
#> Mar 1994 912.6189 912.7430 912.8072 912.7811 912.8068 912.8114 912.8161
#> Apr 1994 918.2983 918.4559 918.5378 918.5051 918.5377 918.5435 918.5493
#> May 1994 923.2502 923.4352 923.5320 923.4941 923.5323 923.5390 923.5457
#> Jun 1994 927.3568 927.5614 927.6690 927.6277 927.6698 927.6772 927.6844
#> Jul 1994 930.8290 931.0419 931.1546 931.1123 931.1560 931.1636 931.1710
#> Aug 1994 933.7844 933.9949 934.1070 934.0658 934.1089 934.1164 934.1235
#> Sep 1994 935.9610 936.1603 936.2671 936.2285 936.2692 936.2762 936.2829
#> Oct 1994 937.5400 937.7202 937.8174 937.7828 937.8195 937.8258 937.8318
#> Nov 1994 939.0517 939.2041 939.2868 939.2577 939.2887 939.2940 939.2990
#> Dec 1994 940.7557 940.8694 940.9318 940.9104 940.9334 940.9373 940.9409
#> Jan 1995 942.5893 942.6579 942.6965 942.6842 942.6979 942.7002 942.7022
#> Feb 1995 944.5146 944.5359 944.5496 944.5471 944.5510 944.5516 944.5518
#> Mar 1995 946.4460 946.4198 946.4084 946.4160 946.4100 946.4089 946.4073
#> Apr 1995 948.4585 948.3899 948.3560 948.3727 948.3580 948.3552 948.3521
#> May 1995 950.7295 950.6256 950.5727 950.5970 950.5749 950.5709 950.5664
#> Jun 1995 953.2220 953.0891 953.0204 953.0510 953.0229 953.0178 953.0123
#> Jul 1995 955.7507 955.5964 955.5161 955.5514 955.5189 955.5129 955.5066
#> Aug 1995 958.2938 958.1250 958.0372 958.0755 958.0399 958.0335 958.0266
#> Sep 1995 960.5857 960.4145 960.3257 960.3641 960.3280 960.3214 960.3146
#> Oct 1995 962.5385 962.3768 962.2933 962.3293 962.2950 962.2888 962.2823
#> Nov 1995 964.3271 964.1855 964.1129 964.1441 964.1140 964.1086 964.1029
#> Dec 1995 965.9247 965.8134 965.7568 965.7810 965.7572 965.7529 965.7485
#> Jan 1996 967.1514 967.0806 967.0447 967.0595 967.0443 967.0416 967.0389
#> Feb 1996 968.0093 967.9853 967.9729 967.9769 967.9717 967.9709 967.9701
#> Mar 1996 968.2491 968.2746 968.2866 968.2792 968.2847 968.2858 968.2872
#> Apr 1996 967.8704 967.9448 967.9809 967.9623 967.9785 967.9815 967.9850
#> May 1996 967.3404 967.4594 967.5175 967.4889 967.5148 967.5196 967.5249
#> Jun 1996 966.8923 967.0451 967.1198 967.0835 967.1167 967.1228 967.1296
#> Jul 1996 966.5965 966.7710 966.8561 966.8145 966.8524 966.8594 966.8672
#> Aug 1996 966.5425 966.7244 966.8122 966.7677 966.8073 966.8146 966.8231
#> Sep 1996 967.0850 967.2588 967.3411 967.2966 967.3345 967.3417 967.3502
#> Oct 1996 968.4652 968.6155 968.6846 968.6437 968.6766 968.6829 968.6909
#> Nov 1996 970.5300 970.6431 970.6923 970.6588 970.6837 970.6887 970.6954
#> Dec 1996 972.9883 973.0589 973.0861 973.0623 973.0780 973.0814 973.0864
#> Jan 1997 975.8488 975.8784 975.8849 975.8718 975.8787 975.8803 975.8835
#> Feb 1997 979.0766 979.0708 979.0600 979.0575 979.0566 979.0568 979.0581
#> Mar 1997 982.5717 982.5419 982.5199 982.5262 982.5201 982.5192 982.5188
#> Apr 1997 986.2071 986.1673 986.1414 986.1535 986.1451 986.1436 986.1422
#> May 1997 989.5674 989.5292 989.5056 989.5207 989.5126 989.5110 989.5090
#> Jun 1997 992.3964 992.3713 992.3562 992.3713 992.3658 992.3646 992.3624
#> Jul 1997 994.6008 994.5962 994.5940 994.6066 994.6053 994.6048 994.6030
#> Aug 1997 996.1258 996.1453 996.1586 996.1677 996.1714 996.1717 996.1704
#> Sep 1997 997.0104 997.0501 997.0774 997.0836 997.0913 997.0923 997.0914
#> Oct 1997 997.5889 997.6363 997.6707 997.6754 997.6846 997.6858 997.6852
#> Nov 1997 997.9873 998.0263 998.0583 998.0627 998.0701 998.0711 998.0705
#> Dec 1997 998.4340 998.4472 998.4661 998.4713 998.4733 998.4735 998.4727
#> Jan 1998 999.3203 999.2902 999.2852 999.2925 999.2856 999.2845 999.2832
#> Feb 1998 1000.8256 1000.7391 1000.7017 1000.7123 1000.6939 1000.6909 1000.6890
#> Mar 1998 1003.1654 1003.0190 1002.9461 1002.9600 1002.9293 1002.9245 1002.9219
#> Apr 1998 1006.4674 1006.2655 1006.1589 1006.1758 1006.1339 1006.1273 1006.1240
#> May 1998 1010.5476 1010.3000 1010.1648 1010.1841 1010.1329 1010.1249 1010.1211
#> Jun 1998 1014.9079 1014.6328 1014.4790 1014.4991 1014.4425 1014.4336 1014.4296
#> Jul 1998 1019.2888 1019.0083 1018.8489 1018.8677 1018.8102 1018.8013 1018.7976
#> Aug 1998 1023.1622 1022.8983 1022.7464 1022.7615 1022.7077 1022.6994 1022.6964
#> Sep 1998 1026.3955 1026.1703 1026.0402 1026.0501 1026.0044 1025.9975 1025.9956
#> Oct 1998 1028.8636 1028.6941 1028.5971 1028.6017 1028.5675 1028.5625 1028.5617
#> Nov 1998 1030.8064 1030.7037 1030.6478 1030.6478 1030.6272 1030.6244 1030.6246
#> Dec 1998 1032.6291 1032.5954 1032.5827 1032.5795 1032.5729 1032.5722 1032.5731
#> Jan 1999 1034.8926 1034.9172 1034.9418 1034.9382 1034.9432 1034.9443 1034.9454
#> Feb 1999 1037.8709 1037.9389 1037.9914 1037.9894 1038.0030 1038.0052 1038.0061
#> Mar 1999 1041.8261 1041.9179 1041.9858 1041.9869 1042.0051 1042.0079 1042.0082
#> Apr 1999 1046.7353 1046.8290 1046.8980 1046.9037 1046.9220 1046.9247 1046.9241
#> May 1999 1052.2106 1052.2911 1052.3511 1052.3612 1052.3766 1052.3786 1052.3772
#> Jun 1999 1058.0511 1058.1102 1058.1555 1058.1692 1058.1800 1058.1812 1058.1790
#> Jul 1999 1063.8264 1063.8611 1063.8886 1063.9037 1063.9095 1063.9099 1063.9073
#> Aug 1999 1069.0856 1069.0988 1069.1099 1069.1256 1069.1272 1069.1268 1069.1240
#> Sep 1999 1073.4599 1073.4519 1073.4475 1073.4630 1073.4604 1073.4594 1073.4565
#> Oct 1999 1076.6209 1076.5953 1076.5796 1076.5937 1076.5876 1076.5861 1076.5834
#> Nov 1999 1078.5666 1078.5305 1078.5109 1078.5225 1078.5141 1078.5125 1078.5103
#> Dec 1999 1079.6341 1079.5943 1079.5799 1079.5889 1079.5794 1079.5778 1079.5761
#> Jan 2000 1079.7872 1079.7518 1079.7523 1079.7597 1079.7502 1079.7488 1079.7476
#> Feb 2000 1079.2502 1079.2255 1079.2494 1079.2572 1079.2484 1079.2474 1079.2465
#> Mar 2000 1078.3178 1078.3075 1078.3602 1078.3714 1078.3636 1078.3629 1078.3617
#> Apr 2000 1077.3439 1077.3479 1077.4304 1077.4483 1077.4409 1077.4403 1077.4384
#> May 2000 1076.8664 1076.8834 1076.9938 1077.0202 1077.0128 1077.0123 1077.0092
#> Jun 2000 1077.1256 1077.1517 1077.2838 1077.3196 1077.3116 1077.3108 1077.3064
#> Jul 2000 1078.4114 1078.4390 1078.5833 1078.6289 1078.6188 1078.6176 1078.6117
#> Aug 2000 1080.7198 1080.7398 1080.8845 1080.9382 1080.9249 1080.9229 1080.9157
#> Sep 2000 1084.1448 1084.1510 1084.2858 1084.3456 1084.3286 1084.3259 1084.3176
#> Oct 2000 1088.5091 1088.5019 1088.6194 1088.6818 1088.6622 1088.6589 1088.6500
#> Nov 2000 1093.5300 1093.5129 1093.6086 1093.6698 1093.6496 1093.6461 1093.6372
#> Dec 2000 1098.7313 1098.7078 1098.7796 1098.8363 1098.8174 1098.8139 1098.8055
#> Jan 2001 1103.6269 1103.6043 1103.6547 1103.7034 1103.6882 1103.6852 1103.6779
#> Feb 2001 1108.1441 1108.1303 1108.1644 1108.2024 1108.1931 1108.1911 1108.1853
#> Mar 2001 1112.4941 1112.4932 1112.5160 1112.5424 1112.5397 1112.5388 1112.5349
#> Apr 2001 1116.8930 1116.9102 1116.9283 1116.9429 1116.9472 1116.9475 1116.9455
#> May 2001 1121.5836 1121.6203 1121.6383 1121.6422 1121.6528 1121.6543 1121.6540
#> Jun 2001 1126.8418 1126.8918 1126.9094 1126.9054 1126.9198 1126.9221 1126.9231
#> Jul 2001 1132.7513 1132.8109 1132.8288 1132.8203 1132.8360 1132.8385 1132.8403
#> Aug 2001 1139.4392 1139.5042 1139.5234 1139.5143 1139.5286 1139.5310 1139.5329
#> Sep 2001 1146.8262 1146.8901 1146.9092 1146.9011 1146.9120 1146.9138 1146.9156
#> Oct 2001 1154.9589 1155.0149 1155.0316 1155.0254 1155.0317 1155.0329 1155.0344
#> Nov 2001 1163.7474 1163.7871 1163.7983 1163.7945 1163.7958 1163.7962 1163.7973
#> Dec 2001 1172.6911 1172.7086 1172.7117 1172.7100 1172.7070 1172.7067 1172.7074
#> Jan 2002 1181.2873 1181.2808 1181.2751 1181.2742 1181.2688 1181.2681 1181.2685
#> Feb 2002 1189.4273 1189.3952 1189.3800 1189.3790 1189.3729 1189.3721 1189.3723
#> Mar 2002 1196.9759 1196.9206 1196.8974 1196.8951 1196.8902 1196.8895 1196.8897
#> Apr 2002 1203.8348 1203.7635 1203.7363 1203.7313 1203.7295 1203.7293 1203.7297
#> May 2002 1210.0448 1209.9665 1209.9401 1209.9315 1209.9338 1209.9343 1209.9351
#> Jun 2002 1215.7457 1215.6694 1215.6481 1215.6360 1215.6423 1215.6434 1215.6447
#> Jul 2002 1221.4180 1221.3563 1221.3469 1221.3317 1221.3406 1221.3422 1221.3441
#> Aug 2002 1227.3917 1227.3555 1227.3613 1227.3439 1227.3545 1227.3563 1227.3589
#> Sep 2002 1233.8843 1233.8799 1233.9023 1233.8841 1233.8955 1233.8976 1233.9006
#> Oct 2002 1240.7045 1240.7290 1240.7633 1240.7462 1240.7568 1240.7589 1240.7620
#> Nov 2002 1247.3731 1247.4089 1247.4449 1247.4313 1247.4382 1247.4397 1247.4424
#> Dec 2002 1253.5504 1253.5764 1253.6039 1253.5956 1253.5959 1253.5962 1253.5981
#> Jan 2003 1259.6009 1259.5931 1259.6025 1259.6005 1259.5918 1259.5908 1259.5915
#> Feb 2003 1265.8351 1265.7716 1265.7570 1265.7605 1265.7424 1265.7397 1265.7394
#> Mar 2003 1272.4021 1272.2707 1272.2316 1272.2380 1272.2122 1272.2082 1272.2071
#> Apr 2003 1279.4004 1279.1950 1279.1346 1279.1408 1279.1099 1279.1051 1279.1037
#> May 2003 1286.6532 1286.3781 1286.3011 1286.3045 1286.2713 1286.2663 1286.2651
#> Jun 2003 1293.7605 1293.4400 1293.3579 1293.3558 1293.3241 1293.3193 1293.3189
#> Jul 2003 1300.3639 1300.0390 1299.9692 1299.9600 1299.9324 1299.9285 1299.9294
#> Aug 2003 1306.4152 1306.1168 1306.0697 1306.0534 1306.0310 1306.0283 1306.0306
#> Sep 2003 1312.0676 1311.8196 1311.8002 1311.7778 1311.7616 1311.7602 1311.7641
#> Oct 2003 1317.4357 1317.2587 1317.2685 1317.2415 1317.2324 1317.2323 1317.2375
#> Nov 2003 1322.6081 1322.5123 1322.5478 1322.5179 1322.5168 1322.5181 1322.5242
#> Dec 2003 1328.0584 1328.0366 1328.0883 1328.0580 1328.0649 1328.0674 1328.0739
#> Jan 2004 1334.2612 1334.2877 1334.3397 1334.3126 1334.3258 1334.3290 1334.3349
#> Feb 2004 1341.0290 1341.0710 1341.1071 1341.0862 1341.1034 1341.1068 1341.1112
#> Mar 2004 1347.9470 1347.9723 1347.9793 1347.9669 1347.9854 1347.9883 1347.9908
#> Apr 2004 1354.6437 1354.6211 1354.5909 1354.5883 1354.6052 1354.6072 1354.6072
#> May 2004 1361.3293 1361.2402 1361.1687 1361.1766 1361.1890 1361.1896 1361.1869
#> Jun 2004 1368.3298 1368.1816 1368.0736 1368.0910 1368.0969 1368.0959 1368.0909
#> Jul 2004 1375.6401 1375.4377 1375.2935 1375.3177 1375.3178 1375.3157 1375.3090
#> Aug 2004 1383.0525 1382.8120 1382.6357 1382.6630 1382.6580 1382.6555 1382.6481
#> Sep 2004 1389.8000 1389.5617 1389.3714 1389.3984 1389.3872 1389.3845 1389.3776
#> Oct 2004 1395.1370 1394.9689 1394.7930 1394.8180 1394.7983 1394.7951 1394.7897
#> Nov 2004 1398.5916 1398.5698 1398.4472 1398.4685 1398.4392 1398.4354 1398.4321
#> Dec 2004 1400.2301 1400.4166 1400.3863 1400.4026 1400.3640 1400.3594 1400.3589
#> Jan 2005 1400.3104 1400.7332 1400.8243 1400.8349 1400.7891 1400.7835 1400.7860
#> Feb 2005 1399.1472 1399.7984 1400.0247 1400.0294 1399.9796 1399.9732 1399.9784
#> Mar 2005 1396.9965 1397.8323 1398.1887 1398.1884 1398.1380 1398.1308 1398.1381
#> Apr 2005 1394.0901 1395.0329 1395.4946 1395.4912 1395.4427 1395.4348 1395.4431
#> May 2005 1390.3838 1391.3560 1391.8852 1391.8799 1391.8360 1391.8276 1391.8361
#> Jun 2005 1386.4486 1387.3724 1387.9320 1387.9253 1387.8877 1387.8796 1387.8875
#> Jul 2005 1382.8353 1383.6864 1384.2499 1384.2426 1384.2096 1384.2021 1384.2093
#> Aug 2005 1379.9742 1380.7619 1381.3040 1381.2960 1381.2650 1381.2583 1381.2650
#> Sep 2005 1378.2032 1378.9402 1379.4314 1379.4233 1379.3913 1379.3856 1379.3917
#> Oct 2005 1378.0368 1378.6852 1379.0927 1379.0866 1379.0505 1379.0458 1379.0513
#> Nov 2005 1380.0349 1380.5464 1380.8346 1380.8338 1380.7912 1380.7873 1380.7921
#> Dec 2005 1384.0038 1384.3500 1384.4889 1384.4968 1384.4464 1384.4430 1384.4466
#> Jan 2006 1389.0670 1389.2551 1389.2293 1389.2479 1389.1907 1389.1875 1389.1900
#> Feb 2006 1394.4892 1394.5541 1394.3681 1394.3980 1394.3397 1394.3365 1394.3379
#> Mar 2006 1399.9154 1399.9068 1399.5802 1399.6205 1399.5666 1399.5631 1399.5636
#> Apr 2006 1405.0429 1405.0477 1404.6123 1404.6604 1404.6144 1404.6105 1404.6102
#> May 2006 1409.9032 1409.9970 1409.5050 1409.5565 1409.5181 1409.5141 1409.5141
#> Jun 2006 1414.2850 1414.4977 1414.0043 1414.0528 1414.0204 1414.0170 1414.0185
#> Jul 2006 1417.7735 1418.1523 1417.7103 1417.7479 1417.7195 1417.7179 1417.7221
#> Aug 2006 1420.4629 1421.0168 1420.6511 1420.6712 1420.6429 1420.6438 1420.6511
#> Sep 2006 1422.3612 1423.0353 1422.7328 1422.7325 1422.7026 1422.7066 1422.7157
#> Oct 2006 1423.9953 1424.6913 1424.4101 1424.3892 1424.3600 1424.3672 1424.3759
#> Nov 2006 1426.1790 1426.7559 1426.4389 1426.4010 1426.3770 1426.3872 1426.3928
#> Dec 2006 1429.5839 1429.8894 1429.4762 1429.4286 1429.4154 1429.4276 1429.4272
#> Jan 2007 1434.5872 1434.4942 1433.9388 1433.8896 1433.8935 1433.9069 1433.8985
#> Feb 2007 1441.3121 1440.7409 1440.0276 1439.9860 1440.0186 1440.0316 1440.0144
#> Mar 2007 1449.5430 1448.4859 1447.6317 1447.6044 1447.6731 1447.6847 1447.6593
#> Apr 2007 1459.2006 1457.7317 1456.7884 1456.7769 1456.8825 1456.8921 1456.8610
#> May 2007 1469.6379 1467.9157 1466.9699 1466.9691 1467.1060 1467.1131 1467.0798
#> Jun 2007 1480.2593 1478.5108 1477.6838 1477.6858 1477.8382 1477.8431 1477.8124
#> Jul 2007 1490.2224 1488.7056 1488.0923 1488.0875 1488.2322 1488.2356 1488.2124
#> Aug 2007 1498.9238 1497.8448 1497.5104 1497.4905 1497.6089 1497.6121 1497.5990
#> Sep 2007 1506.4503 1505.9311 1505.8901 1505.8530 1505.9283 1505.9325 1505.9306
#> Oct 2007 1512.7092 1512.7964 1513.0110 1512.9602 1512.9786 1512.9844 1512.9927
#> Nov 2007 1517.5238 1518.2119 1518.5967 1518.5406 1518.4933 1518.5007 1518.5167
#> Dec 2007 1520.8557 1522.0619 1522.5089 1522.4570 1522.3447 1522.3531 1522.3733
#> Jan 2008 1522.8382 1524.4184 1524.8208 1524.7823 1524.6147 1524.6228 1524.6436
#> Feb 2008 1523.6673 1525.4482 1525.7342 1525.7168 1525.5190 1525.5248 1525.5437
#> Mar 2008 1523.6572 1525.4743 1525.6113 1525.6166 1525.4114 1525.4133 1525.4292
#> Apr 2008 1523.2810 1524.9971 1525.0041 1525.0250 1524.8286 1524.8258 1524.8397
#> May 2008 1523.2114 1524.6947 1524.6495 1524.6674 1524.4924 1524.4843 1524.4985
#> Jun 2008 1523.8186 1525.0369 1524.9657 1524.9616 1524.8126 1524.7997 1524.8154
#> Jul 2008 1525.9026 1526.6929 1526.6026 1526.5601 1526.4289 1526.4139 1526.4330
#> Aug 2008 1530.1029 1530.3784 1530.3061 1530.2126 1530.0855 1530.0720 1530.0973
#> Sep 2008 1536.2064 1536.1546 1536.2165 1536.0854 1535.9491 1535.9414 1535.9766
#> Oct 2008 1543.9231 1543.9794 1544.3367 1544.1855 1544.0338 1544.0357 1544.0846
#> Nov 2008 1552.3642 1553.0794 1553.8909 1553.7352 1553.5666 1553.5802 1553.6444
#> Dec 2008 1560.5575 1562.4755 1563.8660 1563.7183 1563.5391 1563.5646 1563.6397
#> Jan 2009 1567.9194 1571.4442 1573.4793 1573.3461 1573.1704 1573.2067 1573.2877
#> Feb 2009 1573.9049 1579.2041 1581.8428 1581.7168 1581.5293 1581.5754 1581.6584
#> Mar 2009 1578.2432 1585.2083 1588.3530 1588.2178 1588.0145 1588.0679 1588.1511
#> Apr 2009 1580.7215 1588.9732 1592.5051 1592.3415 1592.1504 1592.2069 1592.2918
#> May 2009 1581.3240 1590.2567 1594.0756 1593.8616 1593.7447 1593.7976 1593.8884
#> Jun 2009 1580.2421 1589.1746 1593.1913 1592.9139 1592.9429 1592.9870 1593.0902
#> Jul 2009 1577.5261 1585.9495 1590.0864 1589.7421 1589.9776 1590.0116 1590.1351
#> Aug 2009 1573.4730 1580.9679 1585.0962 1584.7002 1585.1829 1585.2060 1585.3530
#> Sep 2009 1568.8632 1575.0949 1579.0206 1578.6569 1579.3898 1579.4010 1579.5683
#> Oct 2009 1564.0384 1568.8270 1572.3353 1572.0897 1573.0539 1573.0520 1573.2292
#> Nov 2009 1559.4736 1562.8073 1565.6958 1565.6282 1566.7742 1566.7529 1566.9242
#> Dec 2009 1555.4350 1557.4610 1559.5883 1559.7261 1560.9809 1560.9366 1561.0731
#> Jan 2010 1552.1932 1553.1752 1554.4919 1554.8222 1556.1019 1556.0361 1556.1149
#> Feb 2010 1549.8561 1550.1150 1550.6820 1551.1511 1552.3816 1552.3005 1552.3123
#> Mar 2010 1548.4049 1548.2336 1548.1864 1548.7051 1549.8106 1549.7245 1549.6729
#> Apr 2010 1547.8253 1547.4117 1546.9373 1547.3973 1548.3158 1548.2367 1548.1375
#> May 2010 1548.0126 1547.5176 1546.7250 1547.0440 1547.7081 1547.6532 1547.5325
#> Jun 2010 1548.9490 1548.3599 1547.3983 1547.5140 1547.8891 1547.8721 1547.7613
#> Jul 2010 1550.4915 1549.7949 1548.9260 1548.8312 1548.9554 1548.9763 1548.9021
#> Aug 2010 1551.7438 1551.0438 1550.5731 1550.3162 1550.2647 1550.3149 1550.2966
#> Sep 2010 1551.9386 1551.2301 1551.4510 1551.1437 1551.0171 1551.0812 1551.1291
#> Oct 2010 1550.7011 1549.9047 1551.0198 1550.6946 1550.6218 1550.6794 1550.7924
#> Nov 2010 1547.8216 1546.7940 1548.8528 1548.4607 1548.5440 1548.5602 1548.7241
#> Dec 2010 1543.6235 1542.1907 1545.0951 1544.5315 1544.8234 1544.7725 1544.9444
#> Jan 2011 1538.3659 1536.3567 1539.8939 1539.0211 1539.5188 1539.3936 1539.5386
#> Feb 2011 1532.4990 1529.7786 1533.6957 1532.3794 1533.0480 1532.8597 1532.9586
#> Mar 2011 1526.6345 1523.1377 1527.2358 1525.3805 1526.1923 1525.9664 1526.0187
#> Apr 2011 1520.9932 1516.7660 1520.9038 1518.4699 1519.3725 1519.1446 1519.1684
#> May 2011 1515.8226 1511.0305 1515.1648 1512.1811 1513.1102 1512.9182 1512.9456
#> Jun 2011 1511.0506 1506.0530 1510.1637 1506.7521 1507.6240 1507.5039 1507.5730
#> Jul 2011 1506.8695 1502.0361 1506.0641 1502.4115 1503.1339 1503.1087 1503.2532
#> Aug 2011 1503.6823 1499.3691 1503.0969 1499.4514 1499.9582 1500.0295 1500.2668
#> Sep 2011 1501.6913 1498.3118 1501.5104 1498.0397 1498.3030 1498.4543 1498.7787
#> Oct 2011 1500.9512 1498.8085 1501.3211 1498.2487 1498.2598 1498.4589 1498.8379
#> Nov 2011 1501.5106 1500.8107 1502.6526 1500.3078 1500.1094 1500.3002 1500.6786
#> Dec 2011 1503.0852 1503.9950 1505.3013 1504.0283 1503.7277 1503.8639 1504.2169
#> Jan 2012 1505.1162 1507.7990 1508.7287 1508.8336 1508.5756 1508.6302 1508.9284
#> Feb 2012 1506.9869 1511.6386 1512.2996 1514.0128 1513.9567 1513.9285 1514.1208
#> Mar 2012 1508.3748 1515.2548 1515.6229 1519.0663 1519.3388 1519.2502 1519.2795
#> Apr 2012 1509.0111 1518.4445 1518.3481 1523.5312 1524.2128 1524.1004 1523.9098
#> May 2012 1508.6916 1520.9666 1520.1604 1526.9860 1528.1179 1528.0187 1527.5557
#> Jun 2012 NaN 1522.8495 1521.0936 1529.3767 1530.9764 1530.9126 1530.1357
#> Jul 2012 NaN NaN 1520.9778 1530.4955 1532.5188 1532.5016 1531.3877
#> Aug 2012 NaN NaN NaN 1530.6372 1532.9867 1533.0092 1531.5546
#> Sep 2012 NaN NaN NaN NaN 1532.8459 1532.8738 1531.0852
#> Oct 2012 NaN NaN NaN NaN NaN 1532.3005 1530.1883
#> Nov 2012 NaN NaN NaN NaN NaN NaN 1529.0438
#> Dec 2012 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2013 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2013 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2013 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2013 NaN NaN NaN NaN NaN NaN NaN
#> May 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 36 Series 37 Series 38 Series 39 Series 40 Series 41 Series 42
#> Apr 1982 482.7331 482.7350 482.7361 482.7558 482.7277 482.7264 482.7238
#> May 1982 483.8307 483.8327 483.8339 483.8644 483.8391 483.8384 483.8357
#> Jun 1982 485.2466 485.2491 485.2505 485.2932 485.2740 485.2741 485.2713
#> Jul 1982 486.1642 486.1664 486.1676 486.2196 486.2087 486.2091 486.2068
#> Aug 1982 487.3064 487.3086 487.3098 487.3727 487.3686 487.3695 487.3673
#> Sep 1982 488.6826 488.6849 488.6860 488.7588 488.7586 488.7599 488.7578
#> Oct 1982 490.2816 490.2838 490.2849 490.3640 490.3644 490.3658 490.3638
#> Nov 1982 491.9833 491.9851 491.9860 492.0665 492.0639 492.0649 492.0630
#> Dec 1982 493.7658 493.7671 493.7679 493.8446 493.8363 493.8367 493.8349
#> Jan 1983 495.5007 495.5015 495.5020 495.5694 495.5540 495.5537 495.5520
#> Feb 1983 497.2452 497.2455 497.2457 497.2986 497.2766 497.2755 497.2741
#> Mar 1983 499.0713 499.0711 499.0711 499.1068 499.0807 499.0789 499.0777
#> Apr 1983 500.9495 500.9488 500.9486 500.9684 500.9417 500.9394 500.9386
#> May 1983 503.0393 503.0381 503.0376 503.0460 503.0228 503.0203 503.0199
#> Jun 1983 505.4039 505.4024 505.4017 505.4065 505.3904 505.3879 505.3881
#> Jul 1983 508.0592 508.0576 508.0569 508.0696 508.0630 508.0608 508.0613
#> Aug 1983 510.9813 510.9801 510.9796 511.0132 511.0166 511.0149 511.0155
#> Sep 1983 514.2288 514.2286 514.2285 514.2941 514.3061 514.3052 514.3053
#> Oct 1983 517.9101 517.9111 517.9116 518.0163 518.0340 518.0339 518.0332
#> Nov 1983 522.0947 522.0972 522.0985 522.2432 522.2626 522.2634 522.2615
#> Dec 1983 526.7114 526.7154 526.7176 526.8954 526.9124 526.9138 526.9106
#> Jan 1984 531.6814 531.6867 531.6896 531.8885 531.9001 531.9021 531.8975
#> Feb 1984 536.7916 536.7981 536.8015 537.0089 537.0142 537.0165 537.0109
#> Mar 1984 541.8008 541.8080 541.8118 542.0164 542.0166 542.0192 542.0129
#> Apr 1984 546.6567 546.6641 546.6680 546.8600 546.8586 546.8615 546.8549
#> May 1984 551.3732 551.3805 551.3843 551.5543 551.5544 551.5575 551.5511
#> Jun 1984 555.9009 555.9075 555.9109 556.0513 556.0549 556.0580 556.0523
#> Jul 1984 560.4075 560.4129 560.4157 560.5210 560.5291 560.5320 560.5275
#> Aug 1984 565.1878 565.1916 565.1936 565.2616 565.2741 565.2765 565.2734
#> Sep 1984 570.3251 570.3269 570.3278 570.3603 570.3757 570.3772 570.3759
#> Oct 1984 576.0908 576.0907 576.0906 576.0919 576.1087 576.1091 576.1095
#> Nov 1984 582.5584 582.5565 582.5555 582.5323 582.5482 582.5476 582.5495
#> Dec 1984 589.7112 589.7081 589.7065 589.6649 589.6771 589.6754 589.6783
#> Jan 1985 597.5569 597.5530 597.5510 597.4974 597.5038 597.5012 597.5047
#> Feb 1985 605.8631 605.8588 605.8566 605.7988 605.7981 605.7947 605.7984
#> Mar 1985 614.2681 614.2634 614.2611 614.2077 614.2003 614.1963 614.2000
#> Apr 1985 622.4748 622.4700 622.4677 622.4236 622.4079 622.4033 622.4069
#> May 1985 630.0828 630.0780 630.0757 630.0450 630.0211 630.0159 630.0192
#> Jun 1985 636.5050 636.5003 636.4981 636.4844 636.4564 636.4508 636.4539
#> Jul 1985 641.4367 641.4322 641.4302 641.4363 641.4119 641.4065 641.4093
#> Aug 1985 644.6477 644.6437 644.6418 644.6684 644.6583 644.6537 644.6565
#> Sep 1985 646.4305 646.4271 646.4254 646.4710 646.4864 646.4836 646.4866
#> Oct 1985 647.1564 647.1539 647.1526 647.2133 647.2637 647.2634 647.2667
#> Nov 1985 647.4942 647.4926 647.4915 647.5620 647.6525 647.6551 647.6588
#> Dec 1985 648.2198 648.2192 648.2184 648.2972 648.4299 648.4357 648.4399
#> Jan 1986 649.7984 649.7987 649.7982 649.8839 650.0552 650.0639 650.0685
#> Feb 1986 652.3896 652.3910 652.3908 652.4789 652.6791 652.6903 652.6949
#> Mar 1986 656.1141 656.1169 656.1174 656.1985 656.4130 656.4262 656.4303
#> Apr 1986 660.9909 660.9954 660.9968 661.0604 661.2719 661.2867 661.2892
#> May 1986 666.7913 666.7978 666.8002 666.8355 667.0271 667.0427 667.0432
#> Jun 1986 673.2418 673.2503 673.2538 673.2516 673.4089 673.4245 673.4225
#> Jul 1986 680.0311 680.0414 680.0459 680.0005 680.1135 680.1286 680.1240
#> Aug 1986 686.5850 686.5967 686.6020 686.5115 686.5753 686.5893 686.5823
#> Sep 1986 692.5243 692.5368 692.5428 692.4108 692.4270 692.4397 692.4307
#> Oct 1986 697.6431 697.6558 697.6620 697.4977 697.4734 697.4844 697.4742
#> Nov 1986 701.5862 701.5982 701.6042 701.4215 701.3672 701.3762 701.3656
#> Dec 1986 704.4177 704.4284 704.4338 704.2494 704.1776 704.1846 704.1746
#> Jan 1987 706.3120 706.3206 706.3250 706.1566 706.0797 706.0845 706.0760
#> Feb 1987 707.5545 707.5605 707.5637 707.4253 707.3527 707.3552 707.3488
#> Mar 1987 708.7275 708.7309 708.7327 708.6315 708.5674 708.5677 708.5636
#> Apr 1987 710.2422 710.2430 710.2436 710.1807 710.1265 710.1248 710.1228
#> May 1987 712.1442 712.1429 712.1424 712.1143 712.0712 712.0679 712.0678
#> Jun 1987 714.6960 714.6933 714.6921 714.6903 714.6581 714.6538 714.6551
#> Jul 1987 718.0402 718.0370 718.0356 718.0488 718.0251 718.0207 718.0226
#> Aug 1987 722.2084 722.2057 722.2045 722.2212 722.2030 722.1993 722.2009
#> Sep 1987 727.2354 727.2338 727.2331 727.2437 727.2284 727.2259 727.2268
#> Oct 1987 732.7459 732.7455 732.7453 732.7442 732.7299 732.7286 732.7286
#> Nov 1987 738.4107 738.4112 738.4115 738.3985 738.3843 738.3840 738.3832
#> Dec 1987 743.7119 743.7130 743.7136 743.6906 743.6758 743.6761 743.6748
#> Jan 1988 748.1063 748.1077 748.1085 748.0752 748.0578 748.0583 748.0566
#> Feb 1988 751.7017 751.7033 751.7041 751.6632 751.6425 751.6429 751.6410
#> Mar 1988 754.7678 754.7692 754.7700 754.7260 754.7033 754.7034 754.7016
#> Apr 1988 757.4251 757.4261 757.4266 757.3859 757.3660 757.3658 757.3644
#> May 1988 759.7961 759.7965 759.7968 759.7644 759.7508 759.7504 759.7498
#> Jun 1988 762.1262 762.1263 762.1263 762.1049 762.0983 762.0977 762.0978
#> Jul 1988 764.4405 764.4405 764.4405 764.4305 764.4293 764.4289 764.4293
#> Aug 1988 766.8206 766.8210 766.8212 766.8217 766.8239 766.8240 766.8243
#> Sep 1988 769.2049 769.2059 769.2063 769.2156 769.2203 769.2208 769.2209
#> Oct 1988 771.4963 771.4978 771.4985 771.5135 771.5196 771.5204 771.5201
#> Nov 1988 773.9246 773.9266 773.9275 773.9441 773.9505 773.9515 773.9509
#> Dec 1988 776.6136 776.6157 776.6167 776.6302 776.6353 776.6362 776.6353
#> Jan 1989 779.5950 779.5970 779.5979 779.6045 779.6073 779.6078 779.6068
#> Feb 1989 782.9925 782.9940 782.9947 782.9925 782.9929 782.9927 782.9920
#> Mar 1989 786.8059 786.8064 786.8067 786.7961 786.7945 786.7935 786.7934
#> Apr 1989 790.6949 790.6942 790.6940 790.6768 790.6724 790.6705 790.6712
#> May 1989 794.7460 794.7444 794.7437 794.7230 794.7162 794.7136 794.7150
#> Jun 1989 799.0726 799.0703 799.0692 799.0494 799.0419 799.0391 799.0410
#> Jul 1989 803.3650 803.3622 803.3609 803.3456 803.3407 803.3380 803.3404
#> Aug 1989 807.5448 807.5420 807.5406 807.5327 807.5333 807.5310 807.5336
#> Sep 1989 811.2829 811.2806 811.2794 811.2798 811.2849 811.2836 811.2859
#> Oct 1989 814.2897 814.2890 814.2885 814.2969 814.3038 814.3042 814.3054
#> Nov 1989 816.5348 816.5363 816.5369 816.5514 816.5574 816.5600 816.5596
#> Dec 1989 817.9464 817.9503 817.9520 817.9699 817.9730 817.9781 817.9758
#> Jan 1990 818.6911 818.6971 818.6999 818.7201 818.7205 818.7278 818.7239
#> Feb 1990 819.1221 819.1296 819.1331 819.1547 819.1543 819.1632 819.1584
#> Mar 1990 819.2621 819.2702 819.2740 819.2966 819.2978 819.3077 819.3025
#> Apr 1990 819.2773 819.2854 819.2890 819.3130 819.3196 819.3299 819.3252
#> May 1990 819.3151 819.3225 819.3258 819.3504 819.3614 819.3713 819.3672
#> Jun 1990 819.3940 819.4001 819.4029 819.4277 819.4417 819.4505 819.4475
#> Jul 1990 819.3936 819.3978 819.3995 819.4239 819.4405 819.4473 819.4457
#> Aug 1990 819.2380 819.2398 819.2404 819.2637 819.2831 819.2873 819.2875
#> Sep 1990 818.9457 818.9453 818.9450 818.9661 818.9863 818.9882 818.9897
#> Oct 1990 819.0039 819.0026 819.0018 819.0203 819.0382 819.0386 819.0405
#> Nov 1990 819.6430 819.6425 819.6422 819.6581 819.6727 819.6733 819.6743
#> Dec 1990 820.8723 820.8749 820.8760 820.8903 820.9037 820.9069 820.9052
#> Jan 1991 822.9066 822.9144 822.9181 822.9331 822.9502 822.9580 822.9519
#> Feb 1991 825.6568 825.6712 825.6782 825.6961 825.7227 825.7366 825.7252
#> Mar 1991 828.7965 828.8184 828.8289 828.8517 828.8937 828.9146 828.8974
#> Apr 1991 832.3503 832.3792 832.3931 832.4217 832.4833 832.5109 832.4882
#> May 1991 836.2965 836.3308 836.3474 836.3821 836.4687 836.5018 836.4749
#> Jun 1991 840.2159 840.2535 840.2715 840.3113 840.4236 840.4601 840.4310
#> Jul 1991 844.1047 844.1432 844.1617 844.2044 844.3381 844.3759 844.3462
#> Aug 1991 847.9701 848.0073 848.0251 848.0685 848.2137 848.2505 848.2221
#> Sep 1991 851.6396 851.6732 851.6894 851.7309 851.8768 851.9104 851.8848
#> Oct 1991 855.0081 855.0364 855.0499 855.0867 855.2240 855.2525 855.2311
#> Nov 1991 857.7471 857.7685 857.7787 857.8082 857.9276 857.9494 857.9333
#> Dec 1991 859.7533 859.7673 859.7739 859.7946 859.8889 859.9032 859.8928
#> Jan 1992 861.3567 861.3636 861.3669 861.3783 861.4435 861.4508 861.4457
#> Feb 1992 862.7178 862.7190 862.7195 862.7226 862.7589 862.7602 862.7594
#> Mar 1992 864.1377 864.1348 864.1335 864.1302 864.1413 864.1384 864.1406
#> Apr 1992 865.8815 865.8765 865.8741 865.8664 865.8570 865.8517 865.8554
#> May 1992 868.0142 868.0083 868.0055 867.9948 867.9702 867.9637 867.9679
#> Jun 1992 870.3974 870.3915 870.3888 870.3770 870.3454 870.3387 870.3428
#> Jul 1992 872.8181 872.8129 872.8105 872.7995 872.7673 872.7613 872.7649
#> Aug 1992 875.4015 875.3980 875.3964 875.3881 875.3590 875.3548 875.3571
#> Sep 1992 878.4494 878.4479 878.4473 878.4426 878.4189 878.4170 878.4179
#> Oct 1992 881.7494 881.7500 881.7503 881.7500 881.7345 881.7350 881.7345
#> Nov 1992 884.8252 884.8274 884.8285 884.8321 884.8269 884.8294 884.8278
#> Dec 1992 887.4812 887.4845 887.4860 887.4922 887.4971 887.5008 887.4985
#> Jan 1993 889.4769 889.4801 889.4816 889.4884 889.5005 889.5043 889.5021
#> Feb 1993 890.6365 890.6387 890.6397 890.6452 890.6607 890.6633 890.6619
#> Mar 1993 890.9929 890.9934 890.9936 890.9963 891.0107 891.0115 891.0112
#> Apr 1993 890.6309 890.6295 890.6287 890.6281 890.6390 890.6376 890.6388
#> May 1993 889.6272 889.6239 889.6223 889.6185 889.6237 889.6203 889.6228
#> Jun 1993 888.5193 888.5148 888.5127 888.5062 888.5031 888.4984 888.5017
#> Jul 1993 887.7754 887.7706 887.7684 887.7602 887.7481 887.7428 887.7462
#> Aug 1993 887.6967 887.6920 887.6898 887.6805 887.6604 887.6548 887.6580
#> Sep 1993 888.5529 888.5486 888.5465 888.5369 888.5111 888.5057 888.5085
#> Oct 1993 890.2819 890.2783 890.2767 890.2677 890.2402 890.2354 890.2375
#> Nov 1993 892.8956 892.8937 892.8929 892.8863 892.8624 892.8593 892.8601
#> Dec 1993 896.6914 896.6921 896.6924 896.6901 896.6756 896.6753 896.6743
#> Jan 1994 901.4758 901.4797 901.4816 901.4849 901.4847 901.4881 901.4848
#> Feb 1994 906.9391 906.9465 906.9500 906.9596 906.9760 906.9835 906.9778
#> Mar 1994 912.8337 912.8445 912.8495 912.8652 912.8981 912.9095 912.9015
#> Apr 1994 918.5715 918.5850 918.5914 918.6121 918.6588 918.6735 918.6638
#> May 1994 923.5716 923.5873 923.5947 923.6198 923.6797 923.6972 923.6862
#> Jun 1994 927.7129 927.7302 927.7382 927.7669 927.8375 927.8572 927.8454
#> Jul 1994 931.2005 931.2183 931.2265 931.2575 931.3356 931.3565 931.3447
#> Aug 1994 934.1525 934.1699 934.1779 934.2098 934.2922 934.3132 934.3020
#> Sep 1994 936.3102 936.3266 936.3340 936.3654 936.4489 936.4691 936.4589
#> Oct 1994 937.8564 937.8711 937.8778 937.9073 937.9881 938.0065 937.9975
#> Nov 1994 939.3198 939.3321 939.3376 939.3637 939.4368 939.4526 939.4452
#> Dec 1994 940.9563 940.9653 940.9694 940.9904 941.0505 941.0625 941.0573
#> Jan 1995 942.7112 942.7165 942.7187 942.7337 942.7769 942.7843 942.7817
#> Feb 1995 944.5542 944.5553 944.5557 944.5642 944.5885 944.5910 944.5913
#> Mar 1995 946.4030 946.4000 946.3984 946.4005 946.4050 946.4028 946.4058
#> Apr 1995 948.3417 948.3350 948.3317 948.3275 948.3123 948.3058 948.3114
#> May 1995 950.5511 950.5414 950.5367 950.5263 950.4915 950.4814 950.4889
#> Jun 1995 952.9928 952.9806 952.9748 952.9591 952.9075 952.8945 952.9037
#> Jul 1995 955.4841 955.4701 955.4634 955.4434 955.3794 955.3643 955.3747
#> Aug 1995 958.0021 957.9869 957.9796 957.9568 957.8856 957.8692 957.8805
#> Sep 1995 960.2897 960.2743 960.2669 960.2438 960.1738 960.1575 960.1689
#> Oct 1995 962.2588 962.2442 962.2371 962.2159 962.1542 962.1391 962.1500
#> Nov 1995 964.0821 964.0693 964.0631 964.0455 963.9962 963.9832 963.9930
#> Dec 1995 965.7321 965.7220 965.7170 965.7043 965.6686 965.6584 965.6663
#> Jan 1996 967.0284 967.0219 967.0188 967.0114 966.9877 966.9812 966.9861
#> Feb 1996 967.9666 967.9646 967.9636 967.9614 967.9460 967.9435 967.9449
#> Mar 1996 968.2912 968.2938 968.2951 968.2975 968.2868 968.2885 968.2860
#> Apr 1996 967.9964 968.0037 968.0073 968.0141 968.0069 968.0128 968.0064
#> May 1996 967.5430 967.5545 967.5603 967.5711 967.5658 967.5755 967.5656
#> Jun 1996 967.1529 967.1676 967.1749 967.1883 967.1814 967.1938 967.1811
#> Jul 1996 966.8939 966.9107 966.9192 966.9332 966.9219 966.9360 966.9214
#> Aug 1996 966.8510 966.8688 966.8778 966.8902 966.8730 966.8878 966.8721
#> Sep 1996 967.3771 967.3946 967.4034 967.4117 967.3880 967.4024 967.3867
#> Oct 1996 968.7145 968.7302 968.7382 968.7404 968.7104 968.7232 968.7087
#> Nov 1996 970.7137 970.7262 970.7327 970.7273 970.6927 970.7029 970.6910
#> Dec 1996 973.0984 973.1071 973.1117 973.0988 973.0627 973.0701 973.0614
#> Jan 1997 975.8894 975.8942 975.8968 975.8774 975.8436 975.8484 975.8432
#> Feb 1997 979.0585 979.0597 979.0606 979.0365 979.0087 979.0111 979.0093
#> Mar 1997 982.5155 982.5140 982.5135 982.4872 982.4679 982.4688 982.4697
#> Apr 1997 986.1371 986.1342 986.1329 986.1067 986.0960 986.0962 986.0988
#> May 1997 989.5039 989.5006 989.4990 989.4751 989.4739 989.4743 989.4777
#> Jun 1997 992.3590 992.3564 992.3550 992.3358 992.3443 992.3457 992.3489
#> Jul 1997 994.6023 994.6012 994.6004 994.5873 994.6050 994.6078 994.6103
#> Aug 1997 996.1730 996.1736 996.1735 996.1676 996.1940 996.1984 996.2000
#> Sep 1997 997.0967 997.0988 997.0992 997.0997 997.1318 997.1375 997.1383
#> Oct 1997 997.6914 997.6941 997.6945 997.6992 997.7302 997.7359 997.7365
#> Nov 1997 998.0756 998.0776 998.0777 998.0834 998.1062 998.1107 998.1115
#> Dec 1997 998.4743 998.4746 998.4738 998.4771 998.4855 998.4873 998.4889
#> Jan 1998 999.2789 999.2761 999.2741 999.2719 999.2615 999.2590 999.2621
#> Feb 1998 1000.6769 1000.6702 1000.6666 1000.6570 1000.6262 1000.6186 1000.6236
#> Mar 1998 1002.9015 1002.8905 1002.8852 1002.8679 1002.8182 1002.8052 1002.8123
#> Apr 1998 1006.0958 1006.0809 1006.0741 1006.0501 1005.9854 1005.9675 1005.9764
#> May 1998 1010.0866 1010.0684 1010.0604 1010.0305 1009.9518 1009.9296 1009.9399
#> Jun 1998 1014.3914 1014.3714 1014.3629 1014.3284 1014.2396 1014.2147 1014.2255
#> Jul 1998 1018.7588 1018.7386 1018.7303 1018.6934 1018.5994 1018.5739 1018.5841
#> Aug 1998 1022.6602 1022.6417 1022.6342 1022.5974 1022.5034 1022.4793 1022.4881
#> Sep 1998 1025.9651 1025.9499 1025.9438 1025.9099 1025.8222 1025.8017 1025.8083
#> Oct 1998 1028.5391 1028.5282 1028.5238 1028.4956 1028.4208 1028.4055 1028.4097
#> Nov 1998 1030.6114 1030.6055 1030.6029 1030.5824 1030.5258 1030.5167 1030.5186
#> Dec 1998 1032.5695 1032.5684 1032.5676 1032.5559 1032.5205 1032.5177 1032.5177
#> Jan 1999 1034.9497 1034.9524 1034.9528 1034.9494 1034.9347 1034.9373 1034.9361
#> Feb 1999 1038.0161 1038.0214 1038.0225 1038.0260 1038.0288 1038.0353 1038.0337
#> Mar 1999 1042.0211 1042.0275 1042.0288 1042.0367 1042.0518 1042.0603 1042.0588
#> Apr 1999 1046.9369 1046.9427 1046.9438 1046.9528 1046.9727 1046.9811 1046.9805
#> May 1999 1052.3877 1052.3920 1052.3925 1052.4009 1052.4225 1052.4295 1052.4300
#> Jun 1999 1058.1863 1058.1885 1058.1883 1058.1952 1058.2163 1058.2212 1058.2230
#> Jul 1999 1063.9109 1063.9112 1063.9105 1063.9155 1063.9355 1063.9382 1063.9408
#> Aug 1999 1069.1245 1069.1232 1069.1221 1069.1256 1069.1440 1069.1447 1069.1478
#> Sep 1999 1073.4540 1073.4512 1073.4498 1073.4515 1073.4663 1073.4651 1073.4685
#> Oct 1999 1076.5787 1076.5748 1076.5732 1076.5731 1076.5836 1076.5810 1076.5845
#> Nov 1999 1078.5042 1078.5000 1078.4981 1078.4968 1078.5031 1078.5000 1078.5036
#> Dec 1999 1079.5698 1079.5658 1079.5635 1079.5614 1079.5648 1079.5623 1079.5664
#> Jan 2000 1079.7421 1079.7388 1079.7358 1079.7335 1079.7361 1079.7354 1079.7405
#> Feb 2000 1079.2423 1079.2399 1079.2358 1079.2337 1079.2377 1079.2397 1079.2465
#> Mar 2000 1078.3591 1078.3575 1078.3519 1078.3498 1078.3567 1078.3619 1078.3712
#> Apr 2000 1077.4371 1077.4358 1077.4284 1077.4258 1077.4355 1077.4437 1077.4563
#> May 2000 1077.0088 1077.0075 1076.9981 1076.9945 1077.0065 1077.0173 1077.0333
#> Jun 2000 1077.3061 1077.3042 1077.2930 1077.2882 1077.3021 1077.3146 1077.3339
#> Jul 2000 1078.6105 1078.6073 1078.5944 1078.5878 1078.6018 1078.6148 1078.6371
#> Aug 2000 1080.9125 1080.9075 1080.8934 1080.8845 1080.8956 1080.9077 1080.9322
#> Sep 2000 1084.3117 1084.3048 1084.2899 1084.2786 1084.2843 1084.2944 1084.3199
#> Oct 2000 1088.6421 1088.6336 1088.6190 1088.6055 1088.6043 1088.6117 1088.6368
#> Nov 2000 1093.6280 1093.6190 1093.6054 1093.5906 1093.5816 1093.5861 1093.6093
#> Dec 2000 1098.7963 1098.7875 1098.7757 1098.7604 1098.7435 1098.7454 1098.7653
#> Jan 2001 1103.6703 1103.6628 1103.6536 1103.6387 1103.6148 1103.6148 1103.6303
#> Feb 2001 1108.1807 1108.1757 1108.1693 1108.1557 1108.1262 1108.1253 1108.1359
#> Mar 2001 1112.5338 1112.5317 1112.5282 1112.5164 1112.4830 1112.4819 1112.4876
#> Apr 2001 1116.9485 1116.9495 1116.9486 1116.9398 1116.9077 1116.9076 1116.9089
#> May 2001 1121.6608 1121.6648 1121.6660 1121.6604 1121.6320 1121.6333 1121.6310
#> Jun 2001 1126.9322 1126.9381 1126.9407 1126.9370 1126.9108 1126.9131 1126.9083
#> Jul 2001 1132.8504 1132.8569 1132.8603 1132.8573 1132.8318 1132.8344 1132.8283
#> Aug 2001 1139.5424 1139.5483 1139.5516 1139.5482 1139.5224 1139.5249 1139.5187
#> Sep 2001 1146.9233 1146.9277 1146.9305 1146.9263 1146.9003 1146.9022 1146.8966
#> Oct 2001 1155.0395 1155.0421 1155.0440 1155.0389 1155.0137 1155.0147 1155.0104
#> Nov 2001 1163.7993 1163.8001 1163.8009 1163.7952 1163.7720 1163.7721 1163.7695
#> Dec 2001 1172.7067 1172.7059 1172.7058 1172.7001 1172.6807 1172.6798 1172.6789
#> Jan 2002 1181.2659 1181.2645 1181.2638 1181.2590 1181.2452 1181.2437 1181.2441
#> Feb 2002 1189.3687 1189.3672 1189.3663 1189.3632 1189.3564 1189.3547 1189.3560
#> Mar 2002 1196.8860 1196.8853 1196.8844 1196.8840 1196.8856 1196.8840 1196.8856
#> Apr 2002 1203.7272 1203.7279 1203.7277 1203.7301 1203.7396 1203.7387 1203.7397
#> May 2002 1209.9347 1209.9372 1209.9377 1209.9433 1209.9608 1209.9610 1209.9610
#> Jun 2002 1215.6466 1215.6506 1215.6520 1215.6604 1215.6843 1215.6858 1215.6846
#> Jul 2002 1221.3481 1221.3528 1221.3550 1221.3653 1221.3941 1221.3970 1221.3945
#> Aug 2002 1227.3647 1227.3697 1227.3724 1227.3840 1227.4156 1227.4198 1227.4162
#> Sep 2002 1233.9081 1233.9130 1233.9160 1233.9280 1233.9607 1233.9662 1233.9617
#> Oct 2002 1240.7702 1240.7745 1240.7774 1240.7888 1240.8199 1240.8261 1240.8214
#> Nov 2002 1247.4491 1247.4517 1247.4540 1247.4632 1247.4901 1247.4956 1247.4918
#> Dec 2002 1253.6011 1253.6009 1253.6020 1253.6080 1253.6286 1253.6320 1253.6300
#> Jan 2003 1259.5887 1259.5851 1259.5845 1259.5866 1259.6000 1259.6001 1259.6007
#> Feb 2003 1265.7298 1265.7228 1265.7205 1265.7187 1265.7252 1265.7214 1265.7248
#> Mar 2003 1272.1915 1272.1819 1272.1782 1272.1734 1272.1745 1272.1673 1272.1727
#> Apr 2003 1279.0837 1279.0727 1279.0684 1279.0608 1279.0550 1279.0449 1279.0514
#> May 2003 1286.2426 1286.2314 1286.2269 1286.2167 1286.2010 1286.1889 1286.1951
#> Jun 2003 1293.2968 1293.2868 1293.2829 1293.2718 1293.2496 1293.2371 1293.2419
#> Jul 2003 1299.9104 1299.9024 1299.8997 1299.8896 1299.8662 1299.8552 1299.8575
#> Aug 2003 1306.0167 1306.0107 1306.0095 1306.0020 1305.9826 1305.9745 1305.9739
#> Sep 2003 1311.7562 1311.7525 1311.7529 1311.7493 1311.7385 1311.7342 1311.7308
#> Oct 2003 1317.2363 1317.2351 1317.2369 1317.2382 1317.2396 1317.2398 1317.2340
#> Nov 2003 1322.5298 1322.5312 1322.5345 1322.5409 1322.5560 1322.5607 1322.5531
#> Dec 2003 1328.0849 1328.0892 1328.0936 1328.1044 1328.1314 1328.1398 1328.1313
#> Jan 2004 1334.3488 1334.3555 1334.3602 1334.3733 1334.4071 1334.4173 1334.4094
#> Feb 2004 1341.1251 1341.1333 1341.1376 1341.1504 1341.1836 1341.1932 1341.1873
#> Mar 2004 1348.0018 1348.0107 1348.0139 1348.0237 1348.0484 1348.0552 1348.0522
#> Apr 2004 1354.6129 1354.6214 1354.6230 1354.6282 1354.6407 1354.6431 1354.6438
#> May 2004 1361.1858 1361.1928 1361.1922 1361.1924 1361.1920 1361.1889 1361.1937
#> Jun 2004 1368.0831 1368.0878 1368.0851 1368.0797 1368.0645 1368.0557 1368.0641
#> Jul 2004 1375.2963 1375.2995 1375.2950 1375.2841 1375.2516 1375.2378 1375.2489
#> Aug 2004 1382.6332 1382.6357 1382.6303 1382.6141 1382.5627 1382.5454 1382.5575
#> Sep 2004 1389.3623 1389.3633 1389.3579 1389.3363 1389.2653 1389.2461 1389.2575
#> Oct 2004 1394.7748 1394.7724 1394.7674 1394.7403 1394.6502 1394.6310 1394.6398
#> Nov 2004 1398.4187 1398.4109 1398.4068 1398.3746 1398.2688 1398.2517 1398.2560
#> Dec 2004 1400.3475 1400.3327 1400.3302 1400.2938 1400.1778 1400.1648 1400.1630
#> Jan 2005 1400.7769 1400.7543 1400.7536 1400.7147 1400.5950 1400.5876 1400.5788
#> Feb 2005 1399.9715 1399.9415 1399.9426 1399.9028 1399.7858 1399.7848 1399.7690
#> Mar 2005 1398.1326 1398.0965 1398.0991 1398.0600 1397.9508 1397.9559 1397.9341
#> Apr 2005 1395.4379 1395.3973 1395.4008 1395.3631 1395.2631 1395.2727 1395.2470
#> May 2005 1391.8305 1391.7882 1391.7919 1391.7578 1391.6720 1391.6845 1391.6571
#> Jun 2005 1387.8820 1387.8404 1387.8440 1387.8156 1387.7487 1387.7630 1387.7357
#> Jul 2005 1384.2046 1384.1650 1384.1681 1384.1465 1384.1026 1384.1177 1384.0926
#> Aug 2005 1381.2619 1381.2249 1381.2275 1381.2131 1381.1932 1381.2084 1381.1867
#> Sep 2005 1379.3914 1379.3575 1379.3595 1379.3518 1379.3539 1379.3683 1379.3505
#> Oct 2005 1379.0544 1379.0242 1379.0255 1379.0233 1379.0427 1379.0548 1379.0413
#> Nov 2005 1380.7984 1380.7724 1380.7726 1380.7740 1380.8037 1380.8114 1380.8023
#> Dec 2005 1384.4552 1384.4334 1384.4324 1384.4352 1384.4668 1384.4684 1384.4638
#> Jan 2006 1389.1996 1389.1822 1389.1798 1389.1825 1389.2090 1389.2035 1389.2036
#> Feb 2006 1394.3441 1394.3308 1394.3268 1394.3283 1394.3461 1394.3337 1394.3403
#> Mar 2006 1399.5628 1399.5527 1399.5471 1399.5472 1399.5553 1399.5368 1399.5515
#> Apr 2006 1404.6014 1404.5941 1404.5872 1404.5866 1404.5864 1404.5636 1404.5861
#> May 2006 1409.4999 1409.4946 1409.4873 1409.4856 1409.4768 1409.4522 1409.4801
#> Jun 2006 1414.0047 1414.0011 1413.9944 1413.9918 1413.9739 1413.9499 1413.9798
#> Jul 2006 1417.7157 1417.7143 1417.7094 1417.7066 1417.6800 1417.6599 1417.6875
#> Aug 2006 1420.6570 1420.6578 1420.6555 1420.6533 1420.6184 1420.6053 1420.6261
#> Sep 2006 1422.7356 1422.7400 1422.7403 1422.7389 1422.6951 1422.6896 1422.7004
#> Oct 2006 1424.4089 1424.4198 1424.4224 1424.4226 1424.3690 1424.3702 1424.3688
#> Nov 2006 1426.4352 1426.4555 1426.4596 1426.4618 1426.3987 1426.4038 1426.3899
#> Dec 2006 1429.4727 1429.5046 1429.5088 1429.5130 1429.4412 1429.4456 1429.4213
#> Jan 2007 1433.9396 1433.9841 1433.9873 1433.9933 1433.9145 1433.9137 1433.8827
#> Feb 2007 1440.0380 1440.0936 1440.0943 1440.1013 1440.0189 1440.0090 1439.9807
#> Mar 2007 1447.6561 1447.7195 1447.7169 1447.7241 1447.6412 1447.6197 1447.6025
#> Apr 2007 1456.8295 1456.8971 1456.8912 1456.8992 1456.8211 1456.7889 1456.7869
#> May 2007 1467.0235 1467.0908 1467.0819 1467.0901 1467.0131 1466.9748 1466.9896
#> Jun 2007 1477.7432 1477.8042 1477.7933 1477.8007 1477.7203 1477.6821 1477.7101
#> Jul 2007 1488.1471 1488.1969 1488.1857 1488.1910 1488.1059 1488.0744 1488.1071
#> Aug 2007 1497.5528 1497.5899 1497.5804 1497.5828 1497.4953 1497.4756 1497.5034
#> Sep 2007 1505.9158 1505.9400 1505.9341 1505.9338 1505.8517 1505.8469 1505.8607
#> Oct 2007 1513.0162 1513.0275 1513.0266 1513.0243 1512.9585 1512.9699 1512.9628
#> Nov 2007 1518.5779 1518.5762 1518.5811 1518.5777 1518.5394 1518.5658 1518.5348
#> Dec 2007 1522.4646 1522.4501 1522.4610 1522.4577 1522.4570 1522.4960 1522.4429
#> Jan 2008 1524.7506 1524.7232 1524.7394 1524.7374 1524.7812 1524.8286 1524.7607
#> Feb 2008 1525.6401 1525.5982 1525.6176 1525.6174 1525.7095 1525.7610 1525.6953
#> Mar 2008 1525.4950 1525.4371 1525.4576 1525.4595 1525.5956 1525.6477 1525.5982
#> Apr 2008 1524.8662 1524.7914 1524.8117 1524.8147 1524.9802 1525.0308 1525.0056
#> May 2008 1524.4840 1524.3928 1524.4106 1524.4132 1524.5772 1524.6285 1524.6339
#> Jun 2008 1524.7635 1524.6602 1524.6734 1524.6734 1524.8020 1524.8579 1524.8928
#> Jul 2008 1526.3611 1526.2531 1526.2612 1526.2578 1526.3303 1526.3961 1526.4486
#> Aug 2008 1530.0270 1529.9218 1529.9272 1529.9216 1529.9371 1530.0160 1530.0727
#> Sep 2008 1535.9367 1535.8415 1535.8486 1535.8451 1535.8243 1535.9148 1535.9594
#> Oct 2008 1544.1054 1544.0255 1544.0393 1544.0440 1544.0236 1544.1195 1544.1366
#> Nov 2008 1553.7499 1553.6887 1553.7132 1553.7321 1553.7571 1553.8488 1553.8277
#> Dec 2008 1563.8417 1563.8006 1563.8380 1563.8764 1563.9909 1564.0682 1564.0060
#> Jan 2009 1573.5866 1573.5642 1573.6143 1573.6747 1573.9108 1573.9660 1573.8696
#> Feb 2009 1582.0710 1582.0654 1582.1283 1582.2110 1582.5701 1582.5982 1582.4590
#> Mar 2009 1588.6728 1588.6792 1588.7597 1588.8617 1589.3223 1589.3238 1589.1447
#> Apr 2009 1592.8758 1592.8839 1592.9806 1593.0975 1593.6223 1593.6045 1593.4146
#> May 2009 1594.4443 1594.4382 1594.5397 1594.6599 1595.1717 1595.1504 1595.0064
#> Jun 2009 1593.5180 1593.4808 1593.5738 1593.6859 1594.1304 1594.1170 1594.0805
#> Jul 2009 1590.3466 1590.2650 1590.3360 1590.4295 1590.7830 1590.7966 1590.9161
#> Aug 2009 1585.2723 1585.1392 1585.1774 1585.2433 1585.5108 1585.5678 1585.8791
#> Sep 2009 1579.1568 1578.9723 1578.9702 1579.0038 1579.2140 1579.3192 1579.8307
#> Oct 2009 1572.4923 1572.2670 1572.2207 1572.2217 1572.4179 1572.5619 1573.2530
#> Nov 2009 1565.9123 1565.6663 1565.5761 1565.5491 1565.7798 1565.9427 1566.7678
#> Dec 2009 1559.8723 1559.6310 1559.5016 1559.4546 1559.7626 1559.9192 1560.8165
#> Jan 2010 1554.8471 1554.6359 1554.4753 1554.4178 1554.8277 1554.9537 1555.8560
#> Feb 2010 1551.0945 1550.9236 1550.7430 1550.6848 1551.1966 1551.2747 1552.1229
#> Mar 2010 1548.6159 1548.4924 1548.3209 1548.2705 1548.8495 1548.8732 1549.6111
#> Apr 2010 1547.3247 1547.2526 1547.1134 1547.0844 1547.6644 1547.6391 1548.2265
#> May 2010 1547.0397 1547.0194 1546.9315 1546.9392 1547.4906 1547.4180 1547.8091
#> Jun 2010 1547.6133 1547.6369 1547.6072 1547.6544 1548.1415 1548.0242 1548.2033
#> Jul 2010 1549.0322 1549.0816 1549.0978 1549.1740 1549.5307 1549.3771 1549.3961
#> Aug 2010 1550.6020 1550.6545 1550.6859 1550.7685 1550.9047 1550.7396 1550.6737
#> Sep 2010 1551.4774 1551.5132 1551.5195 1551.5775 1551.3961 1551.2706 1551.2089
#> Oct 2010 1551.0359 1551.0433 1550.9843 1550.9840 1550.4042 1550.3916 1550.4254
#> Nov 2010 1548.7344 1548.7138 1548.5586 1548.4714 1547.4494 1547.6299 1547.8331
#> Dec 2010 1544.6426 1544.6056 1544.3402 1544.1485 1542.6877 1543.1298 1543.5427
#> Jan 2011 1538.9401 1538.9052 1538.5363 1538.2385 1536.3892 1537.1344 1537.7559
#> Feb 2011 1532.1172 1532.0821 1531.6365 1531.2481 1529.1031 1530.1569 1530.9571
#> Mar 2011 1524.9843 1524.9455 1524.4871 1524.0380 1521.7248 1523.0560 1524.0051
#> Apr 2011 1518.0190 1517.9782 1517.5612 1517.1081 1514.7568 1516.2998 1517.3472
#> May 2011 1511.7683 1511.7279 1511.3888 1510.9804 1508.6631 1510.3306 1511.4161
#> Jun 2011 1506.4701 1506.4332 1506.1955 1505.8673 1503.6938 1505.3630 1506.4114
#> Jul 2011 1502.3215 1502.2881 1502.1567 1501.9251 1500.0025 1501.5556 1502.4927
#> Aug 2011 1499.5642 1499.5335 1499.4935 1499.3555 1497.7754 1499.1057 1499.8834
#> Sep 2011 1498.3311 1498.3091 1498.3261 1498.2605 1497.0952 1498.1286 1498.7205
#> Oct 2011 1498.6296 1498.6309 1498.6572 1498.6291 1497.9173 1498.6310 1499.0400
#> Nov 2011 1500.6604 1500.7039 1500.6880 1500.6557 1500.3946 1500.8187 1501.0772
#> Dec 2011 1504.3211 1504.4234 1504.3220 1504.2475 1504.3939 1504.6034 1504.7659
#> Jan 2012 1509.0708 1509.2403 1509.0313 1508.8907 1509.3723 1509.4705 1509.5984
#> Feb 2012 1514.2360 1514.4744 1514.1647 1513.9559 1514.6879 1514.7827 1514.9286
#> Mar 2012 1519.3746 1519.6777 1519.2299 1518.9761 1519.8745 1520.0531 1520.2391
#> Apr 2012 1524.0489 1524.3919 1523.8098 1523.5494 1524.5457 1524.8547 1525.0766
#> May 2012 1527.8279 1528.1687 1527.5307 1527.3030 1528.4000 1528.8420 1529.0878
#> Jun 2012 1530.6188 1530.8971 1530.3245 1530.1640 1531.2672 1531.8716 1532.1492
#> Jul 2012 1532.1811 1532.3293 1531.9784 1531.9125 1532.8756 1533.6288 1533.9852
#> Aug 2012 1532.7553 1532.7090 1532.7527 1532.8002 1533.4508 1534.2852 1534.7300
#> Sep 2012 1532.7301 1532.4361 1533.0338 1533.2062 1533.3634 1534.1588 1534.6743
#> Oct 2012 1532.2814 1531.7076 1532.9767 1533.2801 1532.7819 1533.3728 1533.9000
#> Nov 2012 1531.5607 1530.6993 1532.6986 1533.1364 1531.8626 1532.0669 1532.5184
#> Dec 2012 1530.7476 1529.6125 1532.3365 1532.9128 1530.7966 1530.4509 1530.7305
#> Jan 2013 NaN 1528.6466 1532.0313 1532.7541 1529.7821 1528.7726 1528.7942
#> Feb 2013 NaN NaN 1531.8875 1532.7709 1528.9716 1527.2530 1526.9558
#> Mar 2013 NaN NaN NaN 1532.8590 1528.2852 1525.8864 1525.2424
#> Apr 2013 NaN NaN NaN NaN 1527.6679 1524.6833 1523.7067
#> May 2013 NaN NaN NaN NaN NaN 1523.7265 1522.4754
#> Jun 2013 NaN NaN NaN NaN NaN NaN 1521.5197
#> Jul 2013 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2013 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2013 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2013 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2013 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2013 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2014 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 43 Series 44 Series 45 Series 46 Series 47 Series 48 Series 49
#> Apr 1982 482.7421 482.7416 482.7416 482.7409 482.7409 482.7409 482.7391
#> May 1982 483.8587 483.8588 483.8588 483.8560 483.8569 483.8570 483.8537
#> Jun 1982 485.3000 485.3007 485.3007 485.2956 485.2977 485.2978 485.2926
#> Jul 1982 486.2284 486.2292 486.2291 486.2246 486.2266 486.2267 486.2223
#> Aug 1982 487.3873 487.3883 487.3883 487.3831 487.3855 487.3856 487.3810
#> Sep 1982 488.7787 488.7800 488.7800 488.7738 488.7767 488.7768 488.7715
#> Oct 1982 490.3861 490.3876 490.3875 490.3805 490.3838 490.3839 490.3780
#> Nov 1982 492.0840 492.0854 492.0853 492.0786 492.0816 492.0818 492.0762
#> Dec 1982 493.8557 493.8567 493.8567 493.8504 493.8531 493.8532 493.8479
#> Jan 1983 495.5715 495.5721 495.5721 495.5666 495.5688 495.5689 495.5642
#> Feb 1983 497.2908 497.2909 497.2908 497.2867 497.2881 497.2881 497.2845
#> Mar 1983 499.0896 499.0892 499.0891 499.0867 499.0872 499.0872 499.0849
#> Apr 1983 500.9438 500.9430 500.9429 500.9422 500.9419 500.9419 500.9411
#> May 1983 503.0175 503.0164 503.0163 503.0173 503.0162 503.0162 503.0169
#> Jun 1983 505.3768 505.3754 505.3754 505.3779 505.3763 505.3762 505.3784
#> Jul 1983 508.0416 508.0402 508.0402 508.0441 508.0419 508.0418 508.0453
#> Aug 1983 510.9907 510.9894 510.9894 510.9938 510.9916 510.9915 510.9957
#> Sep 1983 514.2799 514.2790 514.2790 514.2831 514.2812 514.2811 514.2852
#> Oct 1983 518.0130 518.0126 518.0126 518.0152 518.0141 518.0141 518.0171
#> Nov 1983 522.2515 522.2518 522.2518 522.2520 522.2521 522.2521 522.2532
#> Dec 1983 526.9135 526.9144 526.9144 526.9121 526.9134 526.9135 526.9124
#> Jan 1984 531.9150 531.9165 531.9164 531.9114 531.9140 531.9141 531.9105
#> Feb 1984 537.0421 537.0441 537.0441 537.0364 537.0402 537.0403 537.0345
#> Mar 1984 542.0542 542.0566 542.0565 542.0470 542.0516 542.0518 542.0442
#> Apr 1984 546.9018 546.9044 546.9043 546.8935 546.8987 546.8989 546.8902
#> May 1984 551.5991 551.6020 551.6019 551.5903 551.5958 551.5961 551.5868
#> Jun 1984 556.0965 556.0994 556.0993 556.0879 556.0934 556.0937 556.0847
#> Jul 1984 560.5629 560.5654 560.5654 560.5553 560.5602 560.5605 560.5527
#> Aug 1984 565.2951 565.2971 565.2971 565.2897 565.2933 565.2935 565.2881
#> Sep 1984 570.3796 570.3806 570.3806 570.3773 570.3790 570.3791 570.3771
#> Oct 1984 576.0952 576.0952 576.0952 576.0963 576.0960 576.0960 576.0973
#> Nov 1984 582.5196 582.5186 582.5187 582.5239 582.5216 582.5215 582.5259
#> Dec 1984 589.6376 589.6357 589.6358 589.6445 589.6405 589.6403 589.6471
#> Jan 1985 597.4582 597.4555 597.4556 597.4670 597.4617 597.4614 597.4698
#> Feb 1985 605.7495 605.7463 605.7464 605.7596 605.7533 605.7530 605.7626
#> Mar 1985 614.1505 614.1468 614.1469 614.1614 614.1545 614.1541 614.1648
#> Apr 1985 622.3588 622.3548 622.3549 622.3702 622.3628 622.3624 622.3740
#> May 1985 629.9729 629.9686 629.9687 629.9847 629.9768 629.9764 629.9890
#> Jun 1985 636.4074 636.4028 636.4029 636.4194 636.4112 636.4108 636.4245
#> Jul 1985 641.3611 641.3566 641.3567 641.3729 641.3649 641.3645 641.3788
#> Aug 1985 644.6029 644.5989 644.5990 644.6145 644.6069 644.6066 644.6212
#> Sep 1985 646.4258 646.4228 646.4229 646.4364 646.4301 646.4298 646.4440
#> Oct 1985 647.1982 647.1966 647.1967 647.2073 647.2028 647.2027 647.2153
#> Nov 1985 647.5824 647.5825 647.5826 647.5896 647.5874 647.5873 647.5978
#> Dec 1985 648.3550 648.3568 648.3570 648.3602 648.3603 648.3604 648.3685
#> Jan 1986 649.9772 649.9808 649.9810 649.9805 649.9828 649.9831 649.9884
#> Feb 1986 652.6039 652.6090 652.6092 652.6047 652.6093 652.6097 652.6121
#> Mar 1986 656.3509 656.3576 656.3578 656.3483 656.3555 656.3560 656.3546
#> Apr 1986 661.2353 661.2434 661.2436 661.2279 661.2380 661.2387 661.2328
#> May 1986 667.0255 667.0348 667.0349 667.0128 667.0258 667.0265 667.0169
#> Jun 1986 673.4500 673.4603 673.4603 673.4315 673.4473 673.4482 673.4351
#> Jul 1986 680.2003 680.2113 680.2112 680.1763 680.1945 680.1954 680.1780
#> Aug 1986 686.7045 686.7157 686.7155 686.6759 686.6958 686.6968 686.6739
#> Sep 1986 692.5919 692.6030 692.6028 692.5600 692.5808 692.5818 692.5511
#> Oct 1986 697.6617 697.6723 697.6720 697.6282 697.6490 697.6500 697.6110
#> Nov 1986 701.5626 701.5721 701.5718 701.5297 701.5493 701.5502 701.5052
#> Dec 1986 704.3642 704.3723 704.3720 704.3342 704.3515 704.3523 704.3051
#> Jan 1987 706.2405 706.2467 706.2465 706.2157 706.2296 706.2302 706.1867
#> Feb 1987 707.4762 707.4803 707.4801 707.4580 707.4678 707.4682 707.4338
#> Mar 1987 708.6490 708.6509 708.6507 708.6381 708.6434 708.6436 708.6229
#> Apr 1987 710.1662 710.1660 710.1659 710.1624 710.1634 710.1634 710.1593
#> May 1987 712.0740 712.0720 712.0720 712.0763 712.0737 712.0735 712.0883
#> Jun 1987 714.6342 714.6311 714.6311 714.6408 714.6357 714.6354 714.6678
#> Jul 1987 717.9896 717.9862 717.9862 717.9978 717.9919 717.9916 718.0353
#> Aug 1987 722.1714 722.1685 722.1685 722.1786 722.1735 722.1732 722.2188
#> Sep 1987 727.2110 727.2091 727.2091 727.2153 727.2122 727.2120 727.2466
#> Oct 1987 732.7281 732.7273 732.7273 732.7294 732.7282 732.7282 732.7446
#> Nov 1987 738.3962 738.3962 738.3962 738.3948 738.3953 738.3953 738.3911
#> Dec 1987 743.6971 743.6977 743.6977 743.6939 743.6955 743.6956 743.6729
#> Jan 1988 748.0856 748.0865 748.0865 748.0812 748.0835 748.0836 748.0479
#> Feb 1988 751.6735 751.6745 751.6744 751.6686 751.6711 751.6712 751.6306
#> Mar 1988 754.7329 754.7337 754.7336 754.7283 754.7305 754.7306 754.6947
#> Apr 1988 757.3877 757.3881 757.3880 757.3845 757.3859 757.3860 757.3641
#> May 1988 759.7621 759.7621 759.7621 759.7609 759.7613 759.7613 759.7620
#> Jun 1988 762.1001 762.0997 762.0997 762.1005 762.1000 762.1000 762.1252
#> Jul 1988 764.4270 764.4266 764.4266 764.4282 764.4274 764.4274 764.4708
#> Aug 1988 766.8243 766.8242 766.8242 766.8251 766.8248 766.8247 766.8743
#> Sep 1988 769.2257 769.2260 769.2260 769.2254 769.2258 769.2258 769.2630
#> Oct 1988 771.5292 771.5299 771.5299 771.5278 771.5289 771.5289 771.5440
#> Nov 1988 773.9631 773.9640 773.9640 773.9607 773.9623 773.9624 773.9527
#> Dec 1988 776.6480 776.6489 776.6489 776.6451 776.6469 776.6470 776.6166
#> Jan 1989 779.6173 779.6180 779.6180 779.6146 779.6161 779.6162 779.5737
#> Feb 1989 782.9971 782.9973 782.9972 782.9954 782.9961 782.9962 782.9532
#> Mar 1989 786.7883 786.7878 786.7877 786.7888 786.7881 786.7881 786.7576
#> Apr 1989 790.6547 790.6533 790.6534 790.6579 790.6555 790.6554 790.6481
#> May 1989 794.6901 794.6880 794.6881 794.6955 794.6918 794.6916 794.7018
#> Jun 1989 799.0114 799.0089 799.0090 799.0184 799.0138 799.0136 799.0326
#> Jul 1989 803.3073 803.3048 803.3048 803.3153 803.3103 803.3100 803.3452
#> Aug 1989 807.4986 807.4963 807.4963 807.5067 807.5019 807.5016 807.5621
#> Sep 1989 811.2576 811.2560 811.2560 811.2643 811.2606 811.2604 811.3654
#> Oct 1989 814.2985 814.2983 814.2984 814.3012 814.3001 814.3001 814.4633
#> Nov 1989 816.5858 816.5876 816.5876 816.5825 816.5853 816.5854 816.7948
#> Dec 1989 818.0384 818.0423 818.0423 818.0288 818.0356 818.0360 818.2562
#> Jan 1990 818.8197 818.8256 818.8255 818.8046 818.8150 818.8156 818.9960
#> Feb 1990 819.2775 819.2847 819.2846 819.2586 819.2716 819.2722 819.3595
#> Mar 1990 819.4311 819.4389 819.4388 819.4110 819.4249 819.4256 819.3752
#> Apr 1990 819.4504 819.4582 819.4581 819.4310 819.4447 819.4454 819.2300
#> May 1990 819.4807 819.4880 819.4879 819.4635 819.4760 819.4766 819.0924
#> Jun 1990 819.5414 819.5476 819.5475 819.5275 819.5379 819.5385 819.0005
#> Jul 1990 819.5082 819.5126 819.5126 819.4998 819.5067 819.5071 818.8408
#> Aug 1990 819.3122 819.3144 819.3145 819.3098 819.3128 819.3129 818.5683
#> Sep 1990 818.9811 818.9813 818.9814 818.9839 818.9833 818.9833 818.2349
#> Oct 1990 819.0171 819.0164 819.0165 819.0220 819.0198 819.0198 818.3257
#> Nov 1990 819.6618 819.6618 819.6618 819.6639 819.6632 819.6632 819.0701
#> Dec 1990 820.9332 820.9358 820.9358 820.9263 820.9310 820.9313 820.4792
#> Jan 1991 823.0468 823.0541 823.0539 823.0251 823.0390 823.0397 822.7566
#> Feb 1991 825.9022 825.9155 825.9151 825.8619 825.8875 825.8887 825.7848
#> Mar 1991 829.1610 829.1810 829.1804 829.1004 829.1388 829.1407 829.2038
#> Apr 1991 832.8300 832.8563 832.8556 832.7501 832.8008 832.8032 833.0024
#> May 1991 836.8707 836.9021 836.9013 836.7760 836.8362 836.8391 837.1399
#> Jun 1991 840.8495 840.8839 840.8830 840.7461 840.8120 840.8152 841.1976
#> Jul 1991 844.7592 844.7945 844.7936 844.6535 844.7211 844.7243 845.1722
#> Aug 1991 848.6065 848.6407 848.6398 848.5049 848.5700 848.5732 849.0641
#> Sep 1991 852.2214 852.2525 852.2517 852.1295 852.1886 852.1914 852.7034
#> Oct 1991 855.5008 855.5269 855.5263 855.4239 855.4735 855.4758 855.9781
#> Nov 1991 858.1228 858.1426 858.1421 858.0649 858.1024 858.1042 858.5634
#> Dec 1991 860.0014 860.0143 860.0140 859.9637 859.9882 859.9894 860.3764
#> Jan 1992 861.4818 861.4883 861.4881 861.4633 861.4754 861.4760 861.7709
#> Feb 1992 862.7404 862.7414 862.7414 862.7375 862.7395 862.7396 862.9341
#> Mar 1992 864.0885 864.0859 864.0859 864.0964 864.0913 864.0911 864.1902
#> Apr 1992 865.7905 865.7858 865.7859 865.8041 865.7952 865.7948 865.8154
#> May 1992 867.9023 867.8966 867.8968 867.9181 867.9076 867.9071 867.8754
#> Jun 1992 870.2829 870.2771 870.2772 870.2985 870.2880 870.2875 870.2279
#> Jul 1992 872.7161 872.7110 872.7111 872.7298 872.7205 872.7201 872.6550
#> Aug 1992 875.3307 875.3272 875.3273 875.3398 875.3335 875.3332 875.2848
#> Sep 1992 878.4175 878.4160 878.4160 878.4211 878.4185 878.4184 878.3718
#> Oct 1992 881.7577 881.7582 881.7582 881.7560 881.7570 881.7571 881.6912
#> Nov 1992 884.8678 884.8700 884.8700 884.8617 884.8658 884.8660 884.7955
#> Dec 1992 887.5449 887.5481 887.5481 887.5362 887.5421 887.5424 887.4922
#> Jan 1993 889.5406 889.5437 889.5437 889.5322 889.5379 889.5382 889.5382
#> Feb 1993 890.6815 890.6836 890.6836 890.6759 890.6798 890.6800 890.7570
#> Mar 1993 891.0065 891.0071 891.0071 891.0053 891.0063 891.0063 891.1783
#> Apr 1993 890.6074 890.6061 890.6061 890.6116 890.6090 890.6088 890.8820
#> May 1993 889.5693 889.5662 889.5663 889.5784 889.5726 889.5723 889.9385
#> Jun 1993 888.4379 888.4336 888.4337 888.4500 888.4421 888.4417 888.8774
#> Jul 1993 887.6847 887.6801 887.6802 887.6975 887.6890 887.6886 888.1628
#> Aug 1993 887.6026 887.5979 887.5980 887.6151 887.6067 887.6062 888.0792
#> Sep 1993 888.4611 888.4567 888.4568 888.4726 888.4647 888.4644 888.9064
#> Oct 1993 890.2022 890.1985 890.1986 890.2113 890.2050 890.2046 890.5998
#> Nov 1993 892.8456 892.8434 892.8434 892.8502 892.8467 892.8465 893.1809
#> Dec 1993 896.6890 896.6892 896.6892 896.6868 896.6879 896.6879 896.9565
#> Jan 1994 901.5351 901.5384 901.5383 901.5245 901.5312 901.5315 901.7384
#> Feb 1994 907.0674 907.0742 907.0741 907.0475 907.0605 907.0611 907.2175
#> Mar 1994 913.0281 913.0382 913.0379 912.9994 913.0183 913.0193 913.1428
#> Apr 1994 918.8205 918.8333 918.8330 918.7846 918.8085 918.8097 918.9206
#> May 1994 923.8666 923.8817 923.8814 923.8252 923.8530 923.8544 923.9694
#> Jun 1994 928.0421 928.0588 928.0585 927.9969 928.0275 928.0291 928.1560
#> Jul 1994 931.5461 931.5636 931.5633 931.4998 931.5316 931.5332 931.6694
#> Aug 1994 934.4971 934.5144 934.5141 934.4522 934.4834 934.4850 934.6189
#> Sep 1994 936.6391 936.6556 936.6553 936.5974 936.6268 936.6283 936.7446
#> Oct 1994 938.1565 938.1713 938.1711 938.1193 938.1458 938.1472 938.2479
#> Nov 1994 939.5756 939.5881 939.5880 939.5448 939.5670 939.5681 939.6542
#> Dec 1994 941.1495 941.1588 941.1587 941.1274 941.1436 941.1444 941.2204
#> Jan 1995 942.8307 942.8361 942.8361 942.8186 942.8278 942.8283 942.9001
#> Feb 1995 944.5955 944.5969 944.5969 944.5940 944.5959 944.5960 944.6699
#> Mar 1995 946.3656 946.3630 946.3631 946.3749 946.3693 946.3691 946.4510
#> Apr 1995 948.2330 948.2267 948.2269 948.2517 948.2396 948.2391 948.3321
#> May 1995 950.3814 950.3722 950.3724 950.4077 950.3903 950.3895 950.4935
#> Jun 1995 952.7729 952.7613 952.7616 952.8055 952.7839 952.7829 952.8949
#> Jul 1995 955.2267 955.2134 955.2138 955.2640 955.2394 955.2383 955.3532
#> Aug 1995 957.7204 957.7062 957.7065 957.7611 957.7346 957.7334 957.8479
#> Sep 1995 960.0058 959.9914 959.9918 960.0472 960.0206 960.0194 960.1372
#> Oct 1995 961.9931 961.9796 961.9799 962.0328 962.0078 962.0066 962.1283
#> Nov 1995 963.8524 963.8406 963.8409 963.8878 963.8659 963.8648 963.9870
#> Dec 1995 965.5540 965.5448 965.5451 965.5824 965.5651 965.5643 965.6804
#> Jan 1996 966.9166 966.9107 966.9109 966.9348 966.9237 966.9232 967.0241
#> Feb 1996 967.9292 967.9272 967.9272 967.9351 967.9314 967.9312 968.0082
#> Mar 1996 968.3305 968.3325 968.3324 968.3230 968.3270 968.3272 968.3744
#> Apr 1996 968.1120 968.1181 968.1179 968.0911 968.1029 968.1034 968.1184
#> May 1996 967.7274 967.7370 967.7367 967.6944 967.7132 967.7141 967.6986
#> Jun 1996 967.3874 967.3998 967.3994 967.3453 967.3694 967.3705 967.3307
#> Jul 1996 967.1588 967.1730 967.1725 967.1106 967.1384 967.1397 967.0840
#> Aug 1996 967.1255 967.1405 967.1400 967.0747 967.1043 967.1056 967.0436
#> Sep 1996 967.6382 967.6529 967.6524 967.5887 967.6179 967.6192 967.5599
#> Oct 1996 968.9392 968.9524 968.9520 968.8950 968.9217 968.9228 968.8737
#> Nov 1996 970.8811 970.8919 970.8915 970.8460 970.8680 970.8689 970.8355
#> Dec 1996 973.2001 973.2079 973.2076 973.1758 973.1922 973.1929 973.1760
#> Jan 1997 975.9269 975.9318 975.9317 975.9135 975.9242 975.9247 975.9221
#> Feb 1997 979.0406 979.0430 979.0430 979.0369 979.0425 979.0428 979.0499
#> Mar 1997 982.4595 982.4600 982.4601 982.4628 982.4646 982.4648 982.4753
#> Apr 1997 986.0634 986.0631 986.0632 986.0701 986.0699 986.0701 986.0775
#> May 1997 989.4309 989.4306 989.4307 989.4383 989.4376 989.4379 989.4377
#> Jun 1997 992.3051 992.3055 992.3057 992.3104 992.3109 992.3112 992.3012
#> Jul 1997 994.5793 994.5809 994.5811 994.5811 994.5837 994.5842 994.5650
#> Aug 1997 996.1852 996.1882 996.1884 996.1831 996.1885 996.1891 996.1646
#> Sep 1997 997.1361 997.1403 997.1404 997.1314 997.1391 997.1398 997.1164
#> Oct 1997 997.7382 997.7425 997.7426 997.7337 997.7420 997.7427 997.7275
#> Nov 1997 998.1074 998.1108 998.1109 998.1062 998.1131 998.1137 998.1095
#> Dec 1997 998.4688 998.4700 998.4701 998.4739 998.4771 998.4774 998.4847
#> Jan 1998 999.2147 999.2124 999.2126 999.2289 999.2260 999.2259 999.2440
#> Feb 1998 1000.5399 1000.5332 1000.5334 1000.5653 1000.5543 1000.5537 1000.5805
#> Mar 1998 1002.6901 1002.6788 1002.6790 1002.7268 1002.7070 1002.7059 1002.7378
#> Apr 1998 1005.8183 1005.8027 1005.8029 1005.8650 1005.8368 1005.8351 1005.8686
#> May 1998 1009.7540 1009.7347 1009.7349 1009.8083 1009.7729 1009.7708 1009.8029
#> Jun 1998 1014.0269 1014.0055 1014.0056 1014.0846 1014.0450 1014.0425 1014.0708
#> Jul 1998 1018.3900 1018.3682 1018.3683 1018.4467 1018.4064 1018.4038 1018.4270
#> Aug 1998 1022.3154 1022.2951 1022.2951 1022.3672 1022.3296 1022.3271 1022.3453
#> Sep 1998 1025.6713 1025.6542 1025.6542 1025.7145 1025.6834 1025.6811 1025.6945
#> Oct 1998 1028.3149 1028.3024 1028.3024 1028.3476 1028.3255 1028.3237 1028.3314
#> Nov 1998 1030.4681 1030.4610 1030.4610 1030.4891 1030.4776 1030.4766 1030.4784
#> Dec 1998 1032.5073 1032.5056 1032.5056 1032.5170 1032.5161 1032.5160 1032.5123
#> Jan 1999 1034.9530 1034.9558 1034.9558 1034.9539 1034.9616 1034.9625 1034.9551
#> Feb 1999 1038.0656 1038.0715 1038.0717 1038.0604 1038.0741 1038.0758 1038.0661
#> Mar 1999 1042.0928 1042.1003 1042.1005 1042.0846 1042.1011 1042.1034 1042.0931
#> Apr 1999 1047.0041 1047.0115 1047.0117 1046.9962 1047.0120 1047.0145 1047.0055
#> May 1999 1052.4361 1052.4421 1052.4423 1052.4305 1052.4433 1052.4457 1052.4391
#> Jun 1999 1058.2097 1058.2137 1058.2140 1058.2074 1058.2160 1058.2180 1058.2146
#> Jul 1999 1063.9130 1063.9150 1063.9152 1063.9134 1063.9173 1063.9186 1063.9188
#> Aug 1999 1069.1108 1069.1109 1069.1111 1069.1126 1069.1123 1069.1127 1069.1171
#> Sep 1999 1073.4245 1073.4228 1073.4229 1073.4279 1073.4238 1073.4233 1073.4324
#> Oct 1999 1076.5358 1076.5329 1076.5330 1076.5415 1076.5347 1076.5336 1076.5458
#> Nov 1999 1078.4515 1078.4481 1078.4482 1078.4607 1078.4534 1078.4522 1078.4654
#> Dec 1999 1079.5071 1079.5042 1079.5043 1079.5223 1079.5169 1079.5162 1079.5288
#> Jan 2000 1079.6679 1079.6663 1079.6666 1079.6918 1079.6908 1079.6915 1079.7018
#> Feb 2000 1079.1512 1079.1516 1079.1522 1079.1870 1079.1920 1079.1945 1079.2023
#> Mar 2000 1078.2425 1078.2452 1078.2461 1078.2927 1078.3048 1078.3092 1078.3155
#> Apr 2000 1077.2848 1077.2896 1077.2907 1077.3508 1077.3699 1077.3759 1077.3827
#> May 2000 1076.8158 1076.8223 1076.8238 1076.8973 1076.9224 1076.9293 1076.9385
#> Jun 2000 1077.0717 1077.0791 1077.0808 1077.1667 1077.1960 1077.2028 1077.2165
#> Jul 2000 1078.3331 1078.3404 1078.3424 1078.4391 1078.4699 1078.4758 1078.4964
#> Aug 2000 1080.5963 1080.6023 1080.6045 1080.7093 1080.7389 1080.7430 1080.7715
#> Sep 2000 1083.9659 1083.9699 1083.9721 1084.0809 1084.1067 1084.1087 1084.1452
#> Oct 2000 1088.2854 1088.2874 1088.2894 1088.3960 1088.4167 1088.4169 1088.4585
#> Nov 2000 1093.2827 1093.2829 1093.2847 1093.3824 1093.3976 1093.3966 1093.4394
#> Dec 2000 1098.4821 1098.4809 1098.4824 1098.5657 1098.5758 1098.5750 1098.6145
#> Jan 2001 1103.4072 1103.4056 1103.4068 1103.4709 1103.4772 1103.4779 1103.5094
#> Feb 2001 1107.9833 1107.9824 1107.9832 1108.0254 1108.0299 1108.0332 1108.0526
#> Mar 2001 1112.4055 1112.4058 1112.4063 1112.4272 1112.4314 1112.4384 1112.4435
#> Apr 2001 1116.8913 1116.8935 1116.8937 1116.8953 1116.9009 1116.9117 1116.9023
#> May 2001 1121.6673 1121.6714 1121.6714 1121.6574 1121.6651 1121.6792 1121.6568
#> Jun 2001 1126.9806 1126.9859 1126.9858 1126.9619 1126.9710 1126.9868 1126.9561
#> Jul 2001 1132.9191 1132.9244 1132.9242 1132.8958 1132.9052 1132.9184 1132.8874
#> Aug 2001 1139.6082 1139.6125 1139.6123 1139.5851 1139.5937 1139.6008 1139.5768
#> Sep 2001 1146.9723 1146.9750 1146.9748 1146.9530 1146.9598 1146.9596 1146.9462
#> Oct 2001 1155.0643 1155.0653 1155.0652 1155.0513 1155.0558 1155.0493 1155.0465
#> Nov 2001 1163.7968 1163.7964 1163.7963 1163.7914 1163.7934 1163.7837 1163.7890
#> Dec 2001 1172.6818 1172.6806 1172.6806 1172.6836 1172.6834 1172.6753 1172.6829
#> Jan 2002 1181.2311 1181.2299 1181.2300 1181.2379 1181.2363 1181.2347 1181.2378
#> Feb 2002 1189.3348 1189.3345 1189.3345 1189.3443 1189.3420 1189.3506 1189.3439
#> Mar 2002 1196.8661 1196.8671 1196.8671 1196.8754 1196.8731 1196.8935 1196.8739
#> Apr 2002 1203.7339 1203.7366 1203.7366 1203.7397 1203.7384 1203.7696 1203.7361
#> May 2002 1209.9758 1209.9800 1209.9800 1209.9760 1209.9764 1210.0147 1209.9702
#> Jun 2002 1215.7208 1215.7261 1215.7259 1215.7150 1215.7172 1215.7569 1215.7073
#> Jul 2002 1221.4481 1221.4533 1221.4531 1221.4371 1221.4409 1221.4707 1221.4287
#> Aug 2002 1227.4828 1227.4871 1227.4869 1227.4676 1227.4727 1227.4850 1227.4591
#> Sep 2002 1234.0354 1234.0386 1234.0384 1234.0175 1234.0239 1234.0161 1234.0096
#> Oct 2002 1240.8922 1240.8943 1240.8941 1240.8742 1240.8813 1240.8559 1240.8676
#> Nov 2002 1247.5434 1247.5439 1247.5438 1247.5298 1247.5353 1247.4992 1247.5251
#> Dec 2002 1253.6482 1253.6466 1253.6465 1253.6428 1253.6446 1253.6059 1253.6407
#> Jan 2003 1259.5754 1259.5714 1259.5714 1259.5813 1259.5773 1259.5458 1259.5818
#> Feb 2003 1265.6550 1265.6488 1265.6489 1265.6732 1265.6624 1265.6481 1265.6757
#> Mar 2003 1272.0698 1272.0621 1272.0622 1272.0980 1272.0812 1272.0922 1272.1012
#> Apr 2003 1278.9332 1278.9248 1278.9250 1278.9678 1278.9466 1278.9870 1278.9699
#> May 2003 1286.0824 1286.0738 1286.0741 1286.1191 1286.0954 1286.1634 1286.1191
#> Jun 2003 1293.1553 1293.1473 1293.1476 1293.1890 1293.1658 1293.2527 1293.1861
#> Jul 2003 1299.8107 1299.8033 1299.8035 1299.8370 1299.8166 1299.9020 1299.8313
#> Aug 2003 1305.9696 1305.9627 1305.9629 1305.9862 1305.9702 1306.0403 1305.9778
#> Sep 2003 1311.7654 1311.7593 1311.7594 1311.7714 1311.7608 1311.8086 1311.7605
#> Oct 2003 1317.3000 1317.2956 1317.2955 1317.2955 1317.2912 1317.3163 1317.2826
#> Nov 2003 1322.6421 1322.6403 1322.6399 1322.6279 1322.6304 1322.6391 1322.6132
#> Dec 2003 1328.2316 1328.2336 1328.2330 1328.2105 1328.2193 1328.2226 1328.1945
#> Jan 2004 1334.5032 1334.5092 1334.5086 1334.4800 1334.4931 1334.5030 1334.4638
#> Feb 2004 1341.2597 1341.2696 1341.2691 1341.2396 1341.2545 1341.2812 1341.2243
#> Mar 2004 1348.0938 1348.1071 1348.1068 1348.0812 1348.0953 1348.1442 1348.0677
#> Apr 2004 1354.6474 1354.6629 1354.6630 1354.6461 1354.6567 1354.7283 1354.6358
#> May 2004 1361.1607 1361.1769 1361.1774 1361.1729 1361.1779 1361.2660 1361.1669
#> Jun 2004 1368.0044 1368.0197 1368.0206 1368.0293 1368.0279 1368.1175 1368.0277
#> Jul 2004 1375.1777 1375.1927 1375.1938 1375.2123 1375.2057 1375.3008 1375.2130
#> Aug 2004 1382.4876 1382.5023 1382.5032 1382.5262 1382.5166 1382.6205 1382.5263
#> Sep 2004 1389.1923 1389.2037 1389.2042 1389.2291 1389.2172 1389.3082 1389.2279
#> Oct 2004 1394.5741 1394.5774 1394.5772 1394.6040 1394.5894 1394.6213 1394.6035
#> Nov 2004 1398.1872 1398.1771 1398.1763 1398.2052 1398.1877 1398.1035 1398.2087
#> Dec 2004 1400.0913 1400.0634 1400.0622 1400.0935 1400.0733 1399.8211 1400.1047
#> Jan 2005 1400.5073 1400.4592 1400.4579 1400.4916 1400.4693 1400.0178 1400.5139
#> Feb 2005 1399.7041 1399.6361 1399.6352 1399.6711 1399.6475 1398.9918 1399.7062
#> Mar 2005 1397.8820 1397.7966 1397.7965 1397.8348 1397.8105 1396.9725 1397.8833
#> Apr 2005 1395.2118 1395.1137 1395.1145 1395.1559 1395.1312 1394.1576 1395.2169
#> May 2005 1391.6520 1391.5473 1391.5492 1391.5925 1391.5681 1390.5184 1391.6631
#> Jun 2005 1387.7670 1387.6621 1387.6650 1387.7084 1387.6853 1386.6213 1387.7842
#> Jul 2005 1384.1543 1384.0529 1384.0562 1384.0999 1384.0777 1383.0275 1384.1763
#> Aug 2005 1381.2601 1381.1654 1381.1685 1381.2110 1381.1894 1380.1782 1381.2830
#> Sep 2005 1379.4116 1379.3274 1379.3293 1379.3686 1379.3473 1378.4136 1379.4312
#> Oct 2005 1379.0670 1378.9970 1378.9973 1379.0317 1379.0105 1378.2170 1379.0805
#> Nov 2005 1380.7739 1380.7221 1380.7207 1380.7495 1380.7282 1380.1424 1380.7805
#> Dec 2005 1384.3703 1384.3397 1384.3369 1384.3604 1384.3390 1384.0138 1384.3707
#> Jan 2006 1389.0491 1389.0417 1389.0380 1389.0560 1389.0352 1388.9958 1389.0437
#> Feb 2006 1394.1392 1394.1554 1394.1516 1394.1667 1394.1478 1394.3845 1394.1297
#> Mar 2006 1399.3248 1399.3631 1399.3601 1399.3752 1399.3589 1399.8312 1399.3141
#> Apr 2006 1404.3629 1404.4196 1404.4179 1404.4336 1404.4207 1405.0557 1404.3521
#> May 2006 1409.2648 1409.3343 1409.3338 1409.3490 1409.3395 1410.0547 1409.2515
#> Jun 2006 1413.7789 1413.8554 1413.8558 1413.8667 1413.8606 1414.5842 1413.7586
#> Jul 2006 1417.5354 1417.6115 1417.6119 1417.6127 1417.6105 1418.2408 1417.5003
#> Aug 2006 1420.5631 1420.6298 1420.6284 1420.6138 1420.6154 1421.0739 1420.5045
#> Sep 2006 1422.7730 1422.8250 1422.8203 1422.7861 1422.7918 1423.0555 1422.6888
#> Oct 2006 1424.6258 1424.6629 1424.6544 1424.5962 1424.6074 1424.7117 1424.5187
#> Nov 2006 1426.8654 1426.8914 1426.8798 1426.7963 1426.8144 1426.8430 1426.7448
#> Dec 2006 1430.1221 1430.1435 1430.1303 1430.0255 1430.0508 1430.1137 1430.0035
#> Jan 2007 1434.7917 1434.8170 1434.8046 1434.6853 1434.7179 1434.9268 1434.6920
#> Feb 2007 1441.0511 1441.0887 1441.0800 1440.9615 1441.0008 1441.4399 1440.9877
#> Mar 2007 1448.7718 1448.8280 1448.8256 1448.7224 1448.7669 1449.4723 1448.7572
#> Apr 2007 1457.9913 1458.0680 1458.0735 1457.9935 1458.0416 1458.9899 1458.0273
#> May 2007 1468.1741 1468.2677 1468.2810 1468.2274 1468.2769 1469.3657 1468.2519
#> Jun 2007 1478.8093 1478.9097 1478.9292 1478.9002 1478.9470 1480.0120 1478.9109
#> Jul 2007 1489.0718 1489.1647 1489.1861 1489.1694 1489.2087 1490.0825 1489.1654
#> Aug 2007 1498.3158 1498.3849 1498.4029 1498.3875 1498.4169 1498.9540 1498.3761
#> Sep 2007 1506.5104 1506.5425 1506.5523 1506.5291 1506.5475 1506.6622 1506.5197
#> Oct 2007 1513.4306 1513.4176 1513.4158 1513.3785 1513.3858 1513.0596 1513.3794
#> Nov 2007 1518.7926 1518.7336 1518.7186 1518.6651 1518.6619 1517.9404 1518.6811
#> Dec 2007 1522.4664 1522.3673 1522.3399 1522.2723 1522.2603 1521.2467 1522.3029
#> Jan 2008 1524.5289 1524.4010 1524.3640 1524.2903 1524.2714 1523.1010 1524.3301
#> Feb 2008 1525.1867 1525.0448 1525.0032 1524.9436 1524.9197 1523.7227 1524.9773
#> Mar 2008 1524.8100 1524.6682 1524.6270 1524.5974 1524.5697 1523.4539 1524.6104
#> Apr 2008 1523.9577 1523.8268 1523.7903 1523.7985 1523.7673 1522.7944 1523.7805
#> May 2008 1523.3810 1523.2680 1523.2390 1523.2869 1523.2522 1522.4188 1523.2303
#> Jun 2008 1523.5555 1523.4596 1523.4371 1523.5141 1523.4771 1522.7387 1523.4236
#> Jul 2008 1525.1720 1525.0847 1525.0637 1525.1376 1525.1000 1524.5003 1525.0256
#> Aug 2008 1528.9353 1528.8402 1528.8113 1528.8520 1528.8146 1528.3766 1528.7335
#> Sep 2008 1535.0241 1534.9080 1534.8657 1534.8516 1534.8155 1534.4197 1534.7418
#> Oct 2008 1543.4466 1543.3048 1543.2495 1543.1728 1543.1385 1542.5501 1543.0830
#> Nov 2008 1553.3994 1553.2362 1553.1743 1553.0442 1553.0114 1551.9398 1552.9802
#> Dec 2008 1563.8329 1563.6607 1563.6029 1563.4417 1563.4104 1561.5775 1563.4015
#> Jan 2009 1573.9176 1573.7534 1573.7122 1573.5527 1573.5230 1570.7265 1573.5268
#> Feb 2009 1582.6989 1582.5590 1582.5438 1582.3921 1582.3621 1578.5457 1582.3910
#> Mar 2009 1589.5404 1589.4383 1589.4557 1589.3194 1589.2879 1584.5272 1589.3428
#> Apr 2009 1593.9138 1593.8577 1593.9102 1593.8161 1593.7833 1588.2621 1593.8359
#> May 2009 1595.5529 1595.5430 1595.6289 1595.6246 1595.5921 1589.5483 1595.5837
#> Jun 2009 1594.6226 1594.6497 1594.7612 1594.8913 1594.8622 1588.5831 1594.7250
#> Jul 2009 1591.4804 1591.5134 1591.6349 1591.9174 1591.8951 1585.5870 1591.5667
#> Aug 2009 1586.4095 1586.4071 1586.5189 1586.9597 1586.9485 1580.8250 1586.4004
#> Sep 2009 1580.2208 1580.1602 1580.2455 1580.8357 1580.8382 1575.1872 1580.0714
#> Oct 2009 1573.3974 1573.2764 1573.3253 1574.0507 1574.0671 1569.1829 1573.1127
#> Nov 2009 1566.5892 1566.4252 1566.4362 1567.2904 1567.3206 1563.4454 1566.2319
#> Dec 2009 1560.2832 1560.1083 1560.0878 1561.0557 1561.1066 1558.3764 1559.9511
#> Jan 2010 1554.9872 1554.8393 1554.7999 1555.8556 1555.9297 1554.3441 1554.7797
#> Feb 2010 1550.9977 1550.9125 1550.8701 1551.9817 1552.0764 1551.4984 1551.0106
#> Mar 2010 1548.3711 1548.3713 1548.3403 1549.4541 1549.5618 1549.7647 1548.6490
#> Apr 2010 1547.0444 1547.1333 1547.1222 1548.1741 1548.2831 1548.9988 1547.5651
#> May 2010 1546.8623 1547.0157 1547.0227 1547.9177 1548.0140 1549.0773 1547.5267
#> Jun 2010 1547.6251 1547.7999 1547.8138 1548.4692 1548.5389 1549.8187 1548.2791
#> Jul 2010 1549.0968 1549.2600 1549.2728 1549.7048 1549.7359 1551.1217 1549.6440
#> Aug 2010 1550.6197 1550.7605 1550.7714 1551.0221 1551.0068 1552.2311 1550.9926
#> Sep 2010 1551.4413 1551.5592 1551.5619 1551.6732 1551.6115 1552.3081 1551.5623
#> Oct 2010 1550.9677 1551.0321 1551.0125 1551.0231 1550.9237 1550.6758 1550.7278
#> Nov 2010 1548.6640 1548.6150 1548.5504 1548.5214 1548.4025 1546.8341 1547.9763
#> Dec 2010 1544.6007 1544.3647 1544.2286 1544.1946 1544.1004 1540.9658 1543.4121
#> Jan 2011 1538.9577 1538.4666 1538.2355 1538.1936 1538.1630 1533.4035 1537.2405
#> Feb 2011 1532.2107 1531.4187 1531.0791 1531.0124 1531.0680 1524.8134 1530.0216
#> Mar 2011 1525.2097 1524.1035 1523.6566 1523.5670 1523.7151 1516.2312 1522.6368
#> Apr 2011 1518.4462 1517.0439 1516.5026 1516.3759 1516.6033 1508.2679 1515.5681
#> May 2011 1512.4062 1510.7542 1510.1404 1509.9503 1510.2268 1501.4487 1509.2845
#> Jun 2011 1507.3259 1505.4898 1504.8290 1504.5279 1504.8113 1496.0261 1503.9958
#> Jul 2011 1503.3407 1501.4161 1500.7350 1500.2685 1500.5126 1492.1755 1499.8573
#> Aug 2011 1500.5565 1498.6600 1497.9880 1497.3555 1497.5236 1490.1583 1497.0565
#> Sep 2011 1499.1863 1497.4726 1496.8379 1496.0717 1496.1373 1490.1306 1495.8332
#> Oct 2011 1499.2906 1497.8730 1497.3076 1496.4634 1496.4178 1491.9462 1496.2051
#> Nov 2011 1501.1084 1500.0333 1499.5623 1498.7701 1498.6263 1495.6308 1498.4078
#> Dec 2011 1504.5975 1503.8403 1503.4755 1502.8365 1502.6619 1500.8710 1502.3449
#> Jan 2012 1509.2883 1508.7616 1508.4999 1508.0667 1507.9238 1506.9208 1507.4481
#> Feb 2012 1514.5633 1514.1369 1513.9608 1513.7357 1513.6706 1512.9900 1513.0962
#> Mar 2012 1519.9285 1519.4559 1519.3367 1519.2580 1519.2944 1518.5365 1518.6962
#> Apr 2012 1524.9232 1524.2755 1524.1797 1524.1456 1524.2793 1523.1930 1523.7278
#> May 2012 1529.1556 1528.2558 1528.1538 1528.0650 1528.2651 1526.7604 1527.8104
#> Jun 2012 1532.4490 1531.2970 1531.1702 1530.9728 1531.1885 1529.2828 1530.8263
#> Jul 2012 1534.5905 1533.2451 1533.0815 1532.7175 1532.8880 1530.7019 1532.5833
#> Aug 2012 1535.6247 1534.1787 1533.9683 1533.3483 1533.4158 1531.0957 1533.1295
#> Sep 2012 1535.6154 1534.1931 1533.9258 1533.0425 1532.9706 1530.6889 1532.6515
#> Oct 2012 1534.6546 1533.3907 1533.0859 1532.0106 1531.7960 1529.7709 1531.4077
#> Nov 2012 1532.9898 1532.0133 1531.7010 1530.4483 1530.1256 1528.5734 1529.6634
#> Dec 2012 1530.9177 1530.3194 1530.0331 1528.6957 1528.2570 1527.3437 1527.7599
#> Jan 2013 1528.7179 1528.5380 1528.3074 1527.1112 1526.5907 1526.4104 1526.1572
#> Feb 2013 1526.6114 1526.8390 1526.6836 1525.9217 1525.4328 1525.9694 1525.0128
#> Mar 2013 1524.5619 1525.1411 1525.0661 1525.0469 1524.7481 1525.8740 1524.3365
#> Apr 2013 1522.5270 1523.3737 1523.3678 1524.3740 1524.4446 1525.9425 1524.1771
#> May 2013 1520.5329 1521.5571 1521.5941 1523.8366 1524.4492 1526.0469 1524.5489
#> Jun 2013 1518.4631 1519.5893 1519.6321 1523.2074 1524.4981 1525.9601 1525.2594
#> Jul 2013 1516.3060 1517.4786 1517.4851 1522.3664 1524.4146 1525.5098 1526.1449
#> Aug 2013 NaN 1515.4954 1515.4224 1521.5008 1524.3156 1524.7779 1527.1885
#> Sep 2013 NaN NaN 1513.4817 1520.5673 1524.0953 1523.8209 1528.2287
#> Oct 2013 NaN NaN NaN 1519.5482 1523.6977 1522.8238 1529.2056
#> Nov 2013 NaN NaN NaN NaN 1522.9798 1521.8524 1529.9750
#> Dec 2013 NaN NaN NaN NaN NaN 1520.7975 1530.2904
#> Jan 2014 NaN NaN NaN NaN NaN NaN 1530.0945
#> Feb 2014 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2014 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2014 NaN NaN NaN NaN NaN NaN NaN
#> May 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2014 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2014 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 50 Series 51 Series 52 Series 53 Series 54 Series 55 Series 56
#> Apr 1982 482.7388 482.7101 482.6949 482.6952 482.7110 482.7015 482.6870
#> May 1982 483.8533 483.8261 483.8126 483.8126 483.8274 483.8170 483.8018
#> Jun 1982 485.2923 485.2680 485.2568 485.2564 485.2704 485.2576 485.2402
#> Jul 1982 486.2222 486.2061 486.1975 486.1971 486.2083 486.1971 486.1821
#> Aug 1982 487.3809 487.3705 487.3641 487.3634 487.3730 487.3617 487.3471
#> Sep 1982 488.7715 488.7640 488.7592 488.7583 488.7668 488.7552 488.7405
#> Oct 1982 490.3780 490.3711 490.3670 490.3661 490.3739 490.3625 490.3482
#> Nov 1982 492.0761 492.0679 492.0637 492.0631 492.0701 492.0608 492.0489
#> Dec 1982 493.8476 493.8361 493.8310 493.8307 493.8377 493.8303 493.8206
#> Jan 1983 495.5638 495.5481 495.5416 495.5416 495.5488 495.5438 495.5367
#> Feb 1983 497.2839 497.2648 497.2568 497.2572 497.2645 497.2621 497.2578
#> Mar 1983 499.0843 499.0638 499.0547 499.0555 499.0626 499.0627 499.0613
#> Apr 1983 500.9404 500.9216 500.9126 500.9137 500.9197 500.9225 500.9243
#> May 1983 503.0162 503.0022 502.9945 502.9957 502.9998 503.0049 503.0096
#> Jun 1983 505.3779 505.3713 505.3655 505.3667 505.3686 505.3755 505.3825
#> Jul 1983 508.0450 508.0470 508.0430 508.0441 508.0444 508.0516 508.0594
#> Aug 1983 510.9955 511.0050 511.0021 511.0029 511.0031 511.0084 511.0141
#> Sep 1983 514.2852 514.2994 514.2963 514.2966 514.2987 514.2998 514.3005
#> Oct 1983 518.0172 518.0320 518.0272 518.0270 518.0329 518.0277 518.0205
#> Nov 1983 522.2535 522.2645 522.2566 522.2558 522.2673 522.2544 522.2374
#> Dec 1983 526.9126 526.9163 526.9045 526.9032 526.9208 526.9003 526.8734
#> Jan 1984 531.9108 531.9048 531.8889 531.8872 531.9108 531.8834 531.8473
#> Feb 1984 537.0347 537.0192 536.9997 536.9977 537.0264 536.9934 536.9498
#> Mar 1984 542.0443 542.0219 542.0003 541.9981 542.0298 541.9934 541.9453
#> Apr 1984 546.8903 546.8653 546.8436 546.8412 546.8736 546.8358 546.7859
#> May 1984 551.5870 551.5635 551.5435 551.5411 551.5718 551.5348 551.4861
#> Jun 1984 556.0849 556.0663 556.0498 556.0475 556.0741 556.0404 555.9965
#> Jul 1984 560.5529 560.5421 560.5303 560.5282 560.5487 560.5210 560.4852
#> Aug 1984 565.2883 565.2868 565.2802 565.2786 565.2916 565.2721 565.2474
#> Sep 1984 570.3773 570.3852 570.3838 570.3828 570.3877 570.3784 570.3671
#> Oct 1984 576.0975 576.1134 576.1162 576.1160 576.1135 576.1142 576.1160
#> Nov 1984 582.5260 582.5472 582.5529 582.5534 582.5452 582.5545 582.5674
#> Dec 1984 589.6471 589.6696 589.6765 589.6776 589.6658 589.6816 589.7026
#> Jan 1985 597.4697 597.4899 597.4964 597.4980 597.4849 597.5047 597.5303
#> Feb 1985 605.7625 605.7782 605.7833 605.7853 605.7724 605.7946 605.8222
#> Mar 1985 614.1646 614.1755 614.1788 614.1811 614.1691 614.1926 614.2209
#> Apr 1985 622.3737 622.3782 622.3792 622.3817 622.3712 622.3955 622.4233
#> May 1985 629.9886 629.9863 629.9843 629.9872 629.9790 630.0032 630.0298
#> Jun 1985 636.4240 636.4184 636.4140 636.4170 636.4109 636.4347 636.4597
#> Jul 1985 641.3783 641.3755 641.3705 641.3733 641.3684 641.3906 641.4138
#> Aug 1985 644.6209 644.6296 644.6270 644.6294 644.6234 644.6436 644.6654
#> Sep 1985 646.4440 646.4730 646.4760 646.4776 646.4684 646.4855 646.5058
#> Oct 1985 647.2158 647.2721 647.2834 647.2839 647.2697 647.2826 647.3009
#> Nov 1985 647.5989 647.6863 647.7079 647.7070 647.6866 647.6949 647.7112
#> Dec 1985 648.3702 648.4904 648.5230 648.5206 648.4933 648.4971 648.5113
#> Jan 1986 649.9908 650.1404 650.1831 650.1795 650.1459 650.1453 650.1565
#> Feb 1986 652.6148 652.7848 652.8350 652.8302 652.7927 652.7871 652.7929
#> Mar 1986 656.3576 656.5340 656.5876 656.5817 656.5444 656.5318 656.5284
#> Apr 1986 661.2359 661.4019 661.4539 661.4471 661.4148 661.3932 661.3759
#> May 1986 667.0198 667.1603 667.2065 667.1992 667.1753 667.1440 667.1100
#> Jun 1986 673.4376 673.5398 673.5768 673.5691 673.5566 673.5152 673.4633
#> Jul 1986 680.1800 680.2357 680.2614 680.2537 680.2539 680.2032 680.1364
#> Aug 1986 686.6754 686.6823 686.6959 686.6886 686.7009 686.6436 686.5675
#> Sep 1986 692.5520 692.5137 692.5160 692.5091 692.5321 692.4705 692.3924
#> Oct 1986 697.6114 697.5368 697.5296 697.5235 697.5542 697.4917 697.4189
#> Nov 1986 701.5052 701.4069 701.3928 701.3876 701.4224 701.3631 701.3013
#> Dec 1986 704.3048 704.1966 704.1788 704.1747 704.2096 704.1571 704.1088
#> Jan 1987 706.1862 706.0820 706.0633 706.0604 706.0918 706.0497 706.0158
#> Feb 1987 707.4332 707.3429 707.3252 707.3235 707.3492 707.3196 707.2980
#> Mar 1987 708.6222 708.5499 708.5339 708.5335 708.5528 708.5360 708.5224
#> Apr 1987 710.1586 710.1053 710.0912 710.0919 710.1050 710.1003 710.0902
#> May 1987 712.0875 712.0530 712.0412 712.0428 712.0502 712.0556 712.0432
#> Jun 1987 714.6671 714.6484 714.6393 714.6413 714.6440 714.6562 714.6376
#> Jul 1987 718.0348 718.0263 718.0197 718.0218 718.0216 718.0362 718.0125
#> Aug 1987 722.2184 722.2139 722.2094 722.2111 722.2100 722.2228 722.1980
#> Sep 1987 727.2463 727.2412 727.2383 727.2394 727.2386 727.2471 727.2314
#> Oct 1987 732.7444 732.7366 732.7347 732.7353 732.7351 732.7392 732.7409
#> Nov 1987 738.3910 738.3801 738.3784 738.3786 738.3794 738.3796 738.4006
#> Dec 1987 743.6727 743.6585 743.6562 743.6563 743.6584 743.6557 743.6921
#> Jan 1988 748.0477 748.0285 748.0245 748.0245 748.0288 748.0238 748.0662
#> Feb 1988 751.6303 751.6060 751.5996 751.5995 751.6067 751.5997 751.6360
#> Mar 1988 754.6943 754.6667 754.6580 754.6579 754.6676 754.6598 754.6783
#> Apr 1988 757.3637 757.3382 757.3288 757.3288 757.3393 757.3320 757.3248
#> May 1988 759.7617 759.7421 759.7340 759.7340 759.7434 759.7375 759.6993
#> Jun 1988 762.1250 762.1125 762.1067 762.1065 762.1140 762.1098 762.0425
#> Jul 1988 764.4708 764.4641 764.4609 764.4606 764.4657 764.4630 764.3792
#> Aug 1988 766.8745 766.8714 766.8709 766.8705 766.8731 766.8712 766.7887
#> Sep 1988 769.2632 769.2633 769.2653 769.2649 769.2647 769.2636 769.2087
#> Oct 1988 771.5442 771.5467 771.5506 771.5502 771.5474 771.5473 771.5351
#> Nov 1988 773.9529 773.9564 773.9607 773.9605 773.9563 773.9568 773.9887
#> Dec 1988 776.6166 776.6193 776.6226 776.6226 776.6185 776.6192 776.6850
#> Jan 1989 779.5735 779.5738 779.5746 779.5749 779.5725 779.5730 779.6536
#> Feb 1989 782.9529 782.9501 782.9478 782.9482 782.9486 782.9488 783.0208
#> Mar 1989 786.7572 786.7524 786.7470 786.7477 786.7509 786.7515 786.7937
#> Apr 1989 790.6476 790.6406 790.6325 790.6333 790.6394 790.6408 790.6368
#> May 1989 794.7013 794.6916 794.6805 794.6814 794.6907 794.6927 794.6441
#> Jun 1989 799.0321 799.0211 799.0082 799.0092 799.0206 799.0233 798.9423
#> Jul 1989 803.3448 803.3375 803.3255 803.3266 803.3371 803.3419 803.2304
#> Aug 1989 807.5619 807.5630 807.5556 807.5565 807.5624 807.5700 807.4366
#> Sep 1989 811.3656 811.3741 811.3747 811.3752 811.3740 811.3823 811.2263
#> Oct 1989 814.4640 814.4754 814.4865 814.4858 814.4767 814.4815 814.3043
#> Nov 1989 816.7962 816.8060 816.8295 816.8272 816.8098 816.8075 816.6319
#> Dec 1989 818.2583 818.2646 818.3013 818.2972 818.2710 818.2608 818.1286
#> Jan 1990 818.9987 819.0023 819.0518 819.0462 819.0111 818.9937 818.9542
#> Feb 1990 819.3628 819.3665 819.4274 819.4205 819.3768 819.3550 819.4541
#> Mar 1990 819.3789 819.3870 819.4565 819.4490 819.3975 819.3751 819.6448
#> Apr 1990 819.2339 819.2507 819.3258 819.3181 819.2606 819.2409 819.6919
#> May 1990 819.0963 819.1215 819.1974 819.1903 819.1298 819.1154 819.7350
#> Jun 1990 819.0042 819.0375 819.1098 819.1039 819.0430 819.0368 819.7979
#> Jul 1990 818.8439 818.8844 818.9492 818.9449 818.8864 818.8898 819.7589
#> Aug 1990 818.5707 818.6171 818.6713 818.6689 818.6156 818.6283 819.5448
#> Sep 1990 818.2366 818.2856 818.3269 818.3263 818.2809 818.3019 819.1828
#> Oct 1990 818.3266 818.3730 818.4014 818.4024 818.3660 818.3928 819.1752
#> Nov 1990 819.0705 819.1109 819.1292 819.1311 819.1026 819.1310 819.7810
#> Dec 1990 820.4791 820.5122 820.5250 820.5270 820.5042 820.5277 821.0343
#> Jan 1991 822.7564 822.7832 822.7959 822.7970 822.7769 822.7883 823.1623
#> Feb 1991 825.7847 825.8084 825.8258 825.8253 825.8048 825.7982 826.0700
#> Mar 1991 829.2040 829.2282 829.2535 829.2508 829.2280 829.1991 829.4108
#> Apr 1991 833.0029 833.0313 833.0651 833.0601 833.0345 832.9822 833.1779
#> May 1991 837.1407 837.1802 837.2228 837.2157 837.1862 837.1138 837.3249
#> Jun 1991 841.1987 841.2543 841.3053 841.2966 841.2625 841.1758 841.4030
#> Jul 1991 845.1736 845.2452 845.3023 845.2925 845.2547 845.1602 845.3859
#> Aug 1991 849.0657 849.1463 849.2068 849.1965 849.1565 849.0601 849.2689
#> Sep 1991 852.7051 852.7866 852.8477 852.8373 852.7971 852.7048 852.8759
#> Oct 1991 855.9797 856.0572 856.1151 856.1056 856.0669 855.9854 856.1109
#> Nov 1991 858.5647 858.6335 858.6843 858.6763 858.6412 858.5769 858.6547
#> Dec 1991 860.3774 860.4330 860.4729 860.4670 860.4383 860.3942 860.4246
#> Jan 1992 861.7715 861.8115 861.8377 861.8341 861.8141 861.7904 861.7790
#> Feb 1992 862.9343 862.9583 862.9701 862.9687 862.9587 862.9519 862.9084
#> Mar 1992 864.1899 864.1996 864.1981 864.1985 864.1984 864.2029 864.1394
#> Apr 1992 865.8149 865.8126 865.7998 865.8014 865.8105 865.8204 865.7496
#> May 1992 867.8747 867.8637 867.8427 867.8452 867.8611 867.8724 867.8051
#> Jun 1992 870.2272 870.2118 870.1865 870.1892 870.2094 870.2186 870.1612
#> Jul 1992 872.6544 872.6373 872.6110 872.6133 872.6359 872.6408 872.5904
#> Aug 1992 875.2844 875.2665 875.2430 875.2446 875.2663 875.2671 875.2123
#> Sep 1992 878.3716 878.3543 878.3373 878.3380 878.3551 878.3553 878.3192
#> Oct 1992 881.6913 881.6775 881.6698 881.6697 881.6788 881.6813 881.6936
#> Nov 1992 884.7957 884.7876 884.7899 884.7892 884.7888 884.7948 884.8485
#> Dec 1992 887.4926 887.4907 887.5022 887.5010 887.4917 887.5010 887.5720
#> Jan 1993 889.5385 889.5428 889.5610 889.5598 889.5430 889.5555 889.6100
#> Feb 1993 890.7572 890.7659 890.7876 890.7868 890.7651 890.7782 890.7792
#> Mar 1993 891.1784 891.1886 891.2102 891.2099 891.1869 891.1975 891.1128
#> Apr 1993 890.8819 890.8926 890.9118 890.9122 890.8902 890.8966 890.7083
#> May 1993 889.9383 889.9475 889.9630 889.9640 889.9447 889.9464 889.6539
#> Jun 1993 888.8771 888.8815 888.8924 888.8938 888.8787 888.8757 888.4986
#> Jul 1993 888.1625 888.1605 888.1672 888.1690 888.1577 888.1521 887.7260
#> Aug 1993 888.0789 888.0721 888.0733 888.0753 888.0693 888.0655 887.6367
#> Sep 1993 888.9060 888.8969 888.8931 888.8954 888.8940 888.8988 888.5070
#> Oct 1993 890.5994 890.5893 890.5842 890.5865 890.5864 890.6030 890.2712
#> Nov 1993 893.1806 893.1696 893.1695 893.1711 893.1670 893.1931 892.9351
#> Dec 1993 896.9564 896.9442 896.9564 896.9567 896.9424 896.9711 896.7885
#> Jan 1994 901.7386 901.7247 901.7558 901.7541 901.7239 901.7460 901.6288
#> Feb 1994 907.2181 907.2011 907.2564 907.2524 907.2016 907.2100 907.1387
#> Mar 1994 913.1438 913.1232 913.2048 913.1984 913.1247 913.1143 913.0656
#> Apr 1994 918.9220 918.8978 919.0038 918.9953 918.8999 918.8662 918.8172
#> May 1994 923.9713 923.9456 924.0712 924.0611 923.9486 923.8868 923.8189
#> Jun 1994 928.1582 928.1333 928.2706 928.2592 928.1374 928.0447 927.9518
#> Jul 1994 931.6720 931.6510 931.7900 931.7780 931.6562 931.5343 931.4252
#> Aug 1994 934.6219 934.6071 934.7369 934.7251 934.6135 934.4651 934.3577
#> Sep 1994 936.7476 936.7407 936.8491 936.8380 936.7485 936.5801 936.4891
#> Oct 1994 938.2507 938.2513 938.3312 938.3212 938.2606 938.0809 938.0030
#> Nov 1994 939.6567 939.6636 939.7136 939.7054 939.6738 939.4950 939.4305
#> Dec 1994 941.2224 941.2343 941.2596 941.2536 941.2439 941.0810 941.0329
#> Jan 1995 942.9013 942.9163 942.9266 942.9231 942.9236 942.7890 942.7596
#> Feb 1995 944.6705 944.6865 944.6976 944.6967 944.6901 944.5884 944.5798
#> Mar 1995 946.4511 946.4667 946.4931 946.4946 946.4650 946.4001 946.4147
#> Apr 1995 948.3318 948.3445 948.3947 948.3983 948.3369 948.3105 948.3484
#> May 1995 950.4929 950.5000 950.5742 950.5796 950.4866 950.4993 950.5590
#> Jun 1995 952.8942 952.8964 952.9877 952.9946 952.8780 952.9301 953.0108
#> Jul 1995 955.3526 955.3514 955.4460 955.4539 955.3301 955.4193 955.5179
#> Aug 1995 957.8474 957.8453 957.9258 957.9343 957.8229 957.9408 958.0522
#> Sep 1995 960.1369 960.1370 960.1929 960.2015 960.1152 960.2400 960.3525
#> Oct 1995 962.1282 962.1323 962.1556 962.1636 962.1124 962.2279 962.3305
#> Nov 1995 963.9869 963.9947 963.9844 963.9913 963.9779 964.0805 964.1654
#> Dec 1995 965.6803 965.6887 965.6522 965.6577 965.6761 965.7733 965.8345
#> Jan 1996 967.0239 967.0276 966.9794 966.9829 967.0201 967.1259 967.1587
#> Feb 1996 968.0077 968.0011 967.9642 967.9655 967.9989 968.1229 968.1261
#> Mar 1996 968.3736 968.3523 968.3473 968.3463 968.3556 968.5034 968.4786
#> Apr 1996 968.1173 968.0807 968.1208 968.1175 968.0895 968.2654 968.2163
#> May 1996 967.6973 967.6454 967.7324 967.7270 967.6594 967.8654 967.7973
#> Jun 1996 967.3293 967.2632 967.3863 967.3794 967.2813 967.5159 967.4354
#> Jul 1996 967.0826 967.0043 967.1452 967.1373 967.0255 967.2812 967.1929
#> Aug 1996 967.0421 966.9558 967.0876 967.0793 966.9787 967.2373 967.1446
#> Sep 1996 967.5583 967.4695 967.5670 967.5590 967.4930 967.7418 967.6485
#> Oct 1996 968.8724 968.7874 968.8348 968.8276 968.8105 969.0385 968.9512
#> Nov 1996 970.8347 970.7605 970.7519 970.7460 970.7824 970.9823 970.9083
#> Dec 1996 973.1762 973.1181 973.0589 973.0545 973.1388 973.3036 973.2469
#> Jan 1997 975.9234 975.8847 975.7903 975.7874 975.9042 976.0288 975.9909
#> Feb 1997 979.0526 979.0342 978.9174 978.9157 979.0530 979.1452 979.1258
#> Mar 1997 982.4791 982.4790 982.3551 982.3542 982.4978 982.5686 982.5645
#> Apr 1997 986.0823 986.0950 985.9854 985.9849 986.1142 986.1672 986.1728
#> May 1997 989.4433 989.4648 989.3948 989.3941 989.4843 989.5134 989.5243
#> Jun 1997 992.3073 992.3329 992.3246 992.3234 992.3524 992.3402 992.3508
#> Jul 1997 994.5714 994.5972 994.6664 994.6645 994.6159 994.5412 994.5466
#> Aug 1997 996.1717 996.1956 996.3622 996.3594 996.2122 996.0758 996.0730
#> Sep 1997 997.1241 997.1448 997.4106 997.4071 997.1582 996.9636 996.9527
#> Oct 1997 997.7357 997.7514 998.0923 998.0886 997.7607 997.5078 997.4936
#> Nov 1997 998.1175 998.1274 998.5000 998.4971 998.1321 997.8017 997.7903
#> Dec 1997 998.4915 998.4961 998.8455 998.8442 998.4959 998.0581 998.0564
#> Jan 1998 999.2484 999.2499 999.5212 999.5224 999.2447 998.6702 998.6856
#> Feb 1998 1000.5815 1000.5831 1000.7222 1000.7264 1000.5731 999.8555 999.8940
#> Mar 1998 1002.7347 1002.7391 1002.7070 1002.7147 1002.7252 1001.8766 1001.9403
#> Apr 1998 1005.8613 1005.8706 1005.6592 1005.6700 1005.8535 1004.8952 1004.9830
#> May 1998 1009.7917 1009.8034 1009.4356 1009.4491 1009.7837 1008.7420 1008.8493
#> Jun 1998 1014.0565 1014.0683 1013.5945 1013.6096 1014.0468 1012.9487 1013.0667
#> Jul 1998 1018.4113 1018.4198 1017.9082 1017.9239 1018.3974 1017.2702 1017.3880
#> Aug 1998 1022.3296 1022.3321 1021.8520 1021.8667 1022.3098 1021.1767 1021.2837
#> Sep 1998 1025.6807 1025.6753 1025.2948 1025.3074 1025.6550 1024.5516 1024.6379
#> Oct 1998 1028.3215 1028.3089 1028.0806 1028.0900 1028.2927 1027.2563 1027.3158
#> Nov 1998 1030.4738 1030.4554 1030.4058 1030.4113 1030.4457 1029.5138 1029.5436
#> Dec 1998 1032.5137 1032.4919 1032.6157 1032.6172 1032.4905 1031.6961 1031.6976
#> Jan 1999 1034.9622 1034.9408 1035.2017 1035.1997 1034.9480 1034.3155 1034.2959
#> Feb 1999 1038.0778 1038.0592 1038.4054 1038.4009 1038.0746 1037.6043 1037.5712
#> Mar 1999 1042.1076 1042.0937 1042.4726 1042.4668 1042.1153 1041.7836 1041.7460
#> Apr 1999 1047.0208 1047.0123 1047.3698 1047.3640 1047.0371 1046.8182 1046.7852
#> May 1999 1052.4535 1052.4523 1052.7459 1052.7409 1052.4780 1052.3495 1052.3269
#> Jun 1999 1058.2270 1058.2334 1058.4399 1058.4362 1058.2577 1058.2086 1058.1986
#> Jul 1999 1063.9278 1063.9412 1064.0593 1064.0571 1063.9614 1063.9873 1063.9889
#> Aug 1999 1069.1225 1069.1413 1069.1821 1069.1814 1069.1569 1069.2487 1069.2597
#> Sep 1999 1073.4343 1073.4561 1073.4270 1073.4276 1073.4668 1073.5896 1073.6088
#> Oct 1999 1076.5453 1076.5679 1076.4852 1076.4868 1076.5743 1076.6955 1076.7202
#> Nov 1999 1078.4649 1078.4860 1078.3707 1078.3726 1078.4898 1078.5905 1078.6171
#> Dec 1999 1079.5313 1079.5501 1079.4232 1079.4245 1079.5542 1079.6350 1079.6607
#> Jan 2000 1079.7111 1079.7276 1079.6058 1079.6056 1079.7360 1079.8150 1079.8378
#> Feb 2000 1079.2220 1079.2375 1079.1376 1079.1351 1079.2541 1079.3551 1079.3748
#> Mar 2000 1078.3484 1078.3647 1078.3070 1078.3017 1078.3927 1078.5293 1078.5477
#> Apr 2000 1077.4301 1077.4489 1077.4443 1077.4362 1077.4902 1077.6706 1077.6910
#> May 2000 1077.0002 1077.0224 1077.0693 1077.0587 1077.0773 1077.3041 1077.3291
#> Jun 2000 1077.2902 1077.3171 1077.4023 1077.3897 1077.3840 1077.6559 1077.6881
#> Jul 2000 1078.5786 1078.6108 1078.7111 1078.6976 1078.6869 1078.9982 1079.0416
#> Aug 2000 1080.8575 1080.8942 1080.9817 1080.9683 1080.9745 1081.3156 1081.3721
#> Sep 2000 1084.2302 1084.2694 1084.3238 1084.3118 1084.3493 1084.7181 1084.7873
#> Oct 2000 1088.5377 1088.5760 1088.5851 1088.5749 1088.6514 1089.0428 1089.1195
#> Nov 2000 1093.5091 1093.5421 1093.5043 1093.4963 1093.6099 1094.0162 1094.0932
#> Dec 2000 1098.6720 1098.6962 1098.6208 1098.6152 1098.7541 1099.1646 1099.2344
#> Jan 2001 1103.5536 1103.5655 1103.4720 1103.4683 1103.6127 1104.0118 1104.0661
#> Feb 2001 1108.0839 1108.0810 1107.9926 1107.9902 1108.1178 1108.4884 1108.5205
#> Mar 2001 1112.4637 1112.4458 1112.3767 1112.3751 1112.4735 1112.8089 1112.8158
#> Apr 2001 1116.9138 1116.8846 1116.8427 1116.8412 1116.9052 1117.2016 1117.1828
#> May 2001 1121.6621 1121.6247 1121.6090 1121.6071 1121.6404 1121.8935 1121.8515
#> Jun 2001 1126.9572 1126.9145 1126.9152 1126.9130 1126.9262 1127.1329 1127.0753
#> Jul 2001 1132.8859 1132.8409 1132.8432 1132.8411 1132.8497 1133.0072 1132.9430
#> Aug 2001 1139.5748 1139.5310 1139.5209 1139.5191 1139.5385 1139.6492 1139.5885
#> Sep 2001 1146.9444 1146.9051 1146.8738 1146.8724 1146.9110 1146.9808 1146.9301
#> Oct 2001 1155.0455 1155.0131 1154.9568 1154.9560 1155.0172 1155.0553 1155.0180
#> Nov 2001 1163.7888 1163.7653 1163.6866 1163.6864 1163.7674 1163.7842 1163.7612
#> Dec 2001 1172.6834 1172.6692 1172.5767 1172.5771 1172.6692 1172.6722 1172.6610
#> Jan 2002 1181.2383 1181.2324 1181.1392 1181.1399 1181.2304 1181.2223 1181.2175
#> Feb 2002 1189.3438 1189.3453 1189.2662 1189.2670 1189.3413 1189.3221 1189.3190
#> Mar 2002 1196.8725 1196.8799 1196.8250 1196.8256 1196.8742 1196.8446 1196.8387
#> Apr 2002 1203.7331 1203.7429 1203.7172 1203.7176 1203.7361 1203.6948 1203.6814
#> May 2002 1209.9654 1209.9760 1209.9798 1209.9796 1209.9687 1209.9186 1209.8962
#> Jun 2002 1215.7012 1215.7114 1215.7396 1215.7387 1215.7039 1215.6467 1215.6170
#> Jul 2002 1221.4220 1221.4316 1221.4751 1221.4737 1221.4241 1221.3595 1221.3280
#> Aug 2002 1227.4527 1227.4611 1227.5096 1227.5078 1227.4549 1227.3876 1227.3573
#> Sep 2002 1234.0046 1234.0112 1234.0564 1234.0540 1234.0082 1233.9454 1233.9179
#> Oct 2002 1240.8645 1240.8695 1240.9054 1240.9028 1240.8701 1240.8162 1240.7939
#> Nov 2002 1247.5236 1247.5297 1247.5540 1247.5519 1247.5319 1247.4887 1247.4767
#> Dec 2002 1253.6400 1253.6503 1253.6643 1253.6634 1253.6505 1253.6137 1253.6176
#> Jan 2003 1259.5807 1259.5983 1259.6056 1259.6066 1259.5925 1259.5547 1259.5782
#> Feb 2003 1265.6729 1265.6993 1265.7030 1265.7063 1265.6840 1265.6369 1265.6799
#> Mar 2003 1272.0955 1272.1296 1272.1317 1272.1370 1272.1028 1272.0398 1272.0967
#> Apr 2003 1278.9607 1278.9972 1278.9981 1279.0050 1278.9582 1278.8764 1278.9395
#> May 2003 1286.1063 1286.1384 1286.1379 1286.1459 1286.0857 1285.9862 1286.0478
#> Jun 2003 1293.1706 1293.1952 1293.1942 1293.2024 1293.1302 1293.0165 1293.0687
#> Jul 2003 1299.8146 1299.8307 1299.8302 1299.8376 1299.7576 1299.6340 1299.6747
#> Aug 2003 1305.9613 1305.9703 1305.9714 1305.9774 1305.8950 1305.7671 1305.7963
#> Sep 2003 1311.7456 1311.7493 1311.7528 1311.7569 1311.6795 1311.5544 1311.5717
#> Oct 2003 1317.2705 1317.2707 1317.2769 1317.2788 1317.2146 1317.0992 1317.1041
#> Nov 2003 1322.6047 1322.6022 1322.6107 1322.6102 1322.5670 1322.4670 1322.4572
#> Dec 2003 1328.1896 1328.1845 1328.1940 1328.1912 1328.1748 1328.0951 1328.0687
#> Jan 2004 1334.4622 1334.4551 1334.4635 1334.4592 1334.4709 1334.4166 1334.3755
#> Feb 2004 1341.2249 1341.2156 1341.2209 1341.2160 1341.2527 1341.2258 1341.1729
#> Mar 2004 1348.0694 1348.0569 1348.0571 1348.0525 1348.1074 1348.1068 1348.0460
#> Apr 2004 1354.6374 1354.6241 1354.6193 1354.6160 1354.6778 1354.7011 1354.6387
#> May 2004 1361.1677 1361.1579 1361.1494 1361.1478 1361.1994 1361.2438 1361.1867
#> Jun 2004 1368.0273 1368.0210 1368.0093 1368.0099 1368.0388 1368.1005 1368.0536
#> Jul 2004 1375.2116 1375.2039 1375.1886 1375.1910 1375.1952 1375.2740 1375.2307
#> Aug 2004 1382.5243 1382.5092 1382.4894 1382.4933 1382.4807 1382.5730 1382.5274
#> Sep 2004 1389.2256 1389.1996 1389.1752 1389.1804 1389.1605 1389.2543 1389.2135
#> Oct 2004 1394.6013 1394.5641 1394.5355 1394.5421 1394.5245 1394.6058 1394.5871
#> Nov 2004 1398.2070 1398.1598 1398.1274 1398.1353 1398.1286 1398.1797 1398.2036
#> Dec 2004 1400.1037 1400.0490 1400.0139 1400.0226 1400.0327 1400.0371 1400.1216
#> Jan 2005 1400.5137 1400.4548 1400.4182 1400.4274 1400.4560 1400.4034 1400.5595
#> Feb 2005 1399.7069 1399.6471 1399.6106 1399.6195 1399.6636 1399.5509 1399.7798
#> Mar 2005 1397.8847 1397.8276 1397.7928 1397.8012 1397.8523 1397.6853 1397.9795
#> Apr 2005 1395.2186 1395.1671 1395.1347 1395.1424 1395.1883 1394.9815 1395.3264
#> May 2005 1391.6650 1391.6239 1391.5963 1391.6030 1391.6235 1391.3945 1391.7662
#> Jun 2005 1387.7863 1387.7594 1387.7384 1387.7438 1387.7266 1387.4910 1387.8653
#> Jul 2005 1384.1787 1384.1705 1384.1574 1384.1620 1384.1003 1383.8698 1384.2340
#> Aug 2005 1381.2860 1381.2985 1381.2940 1381.2981 1381.2015 1380.9868 1381.3314
#> Sep 2005 1379.4352 1379.4673 1379.4709 1379.4751 1379.3625 1379.1774 1379.4920
#> Oct 2005 1379.0854 1379.1337 1379.1441 1379.1486 1379.0410 1378.8992 1379.1731
#> Nov 2005 1380.7860 1380.8440 1380.8588 1380.8639 1380.7810 1380.6956 1380.9169
#> Dec 2005 1384.3762 1384.4368 1384.4532 1384.4590 1384.4151 1384.3966 1384.5557
#> Jan 2006 1389.0488 1389.1039 1389.1193 1389.1255 1389.1274 1389.1787 1389.2679
#> Feb 2006 1394.1339 1394.1772 1394.1897 1394.1959 1394.2409 1394.3552 1394.3731
#> Mar 2006 1399.3172 1399.3461 1399.3552 1399.3609 1399.4355 1399.6019 1399.5535
#> Apr 2006 1404.3542 1404.3691 1404.3753 1404.3799 1404.4632 1404.6680 1404.5620
#> May 2006 1409.2532 1409.2525 1409.2546 1409.2582 1409.3557 1409.5793 1409.4336
#> Jun 2006 1413.7607 1413.7437 1413.7407 1413.7433 1413.8584 1414.0829 1413.9130
#> Jul 2006 1417.5038 1417.4710 1417.4622 1417.4640 1417.5761 1417.7823 1417.6020
#> Aug 2006 1420.5108 1420.4670 1420.4537 1420.4551 1420.5304 1420.7077 1420.5311
#> Sep 2006 1422.6982 1422.6489 1422.6331 1422.6343 1422.6273 1422.7786 1422.6060
#> Oct 2006 1424.5305 1424.4784 1424.4619 1424.4627 1424.3286 1424.4651 1424.2797
#> Nov 2006 1426.7572 1426.7041 1426.6887 1426.6884 1426.3919 1426.5292 1426.3074
#> Dec 2006 1430.0141 1429.9613 1429.9482 1429.9463 1429.4687 1429.6247 1429.3441
#> Jan 2007 1434.6982 1434.6447 1434.6342 1434.6300 1433.9758 1434.1628 1433.8047
#> Feb 2007 1440.9871 1440.9306 1440.9224 1440.9153 1440.1121 1440.3299 1439.8896
#> Mar 2007 1448.7484 1448.6866 1448.6799 1448.6697 1447.7624 1448.0023 1447.4878
#> Apr 2007 1458.0110 1457.9447 1457.9397 1457.9262 1456.9702 1457.2151 1456.6466
#> May 2007 1468.2314 1468.1633 1468.1612 1468.1452 1467.1964 1467.4219 1466.8346
#> Jun 2007 1478.8908 1478.8238 1478.8242 1478.8071 1477.9307 1478.1083 1477.5563
#> Jul 2007 1489.1498 1489.0883 1489.0895 1489.0738 1488.3209 1488.4339 1487.9717
#> Aug 2007 1498.3664 1498.3116 1498.3109 1498.2987 1497.6872 1497.7331 1497.3948
#> Sep 2007 1506.5164 1506.4702 1506.4659 1506.4585 1505.9932 1505.9814 1505.7851
#> Oct 2007 1513.3830 1513.3500 1513.3416 1513.3402 1513.0272 1512.9760 1512.9288
#> Nov 2007 1518.6921 1518.6782 1518.6671 1518.6721 1518.5200 1518.4550 1518.5521
#> Dec 2007 1522.3213 1522.3320 1522.3204 1522.3315 1522.3483 1522.2924 1522.5172
#> Jan 2008 1524.3556 1524.3953 1524.3865 1524.4026 1524.5933 1524.5627 1524.8932
#> Feb 2008 1525.0084 1525.0794 1525.0768 1525.0964 1525.4643 1525.4574 1525.8761
#> Mar 2008 1524.6460 1524.7485 1524.7552 1524.7765 1525.3219 1525.3275 1525.8193
#> Apr 2008 1523.8202 1523.9495 1523.9667 1523.9883 1524.7058 1524.7054 1525.2590
#> May 2008 1523.2770 1523.4313 1523.4630 1523.4841 1524.3469 1524.3172 1524.9261
#> Jun 2008 1523.4789 1523.6568 1523.7068 1523.7271 1524.6511 1524.5936 1525.2358
#> Jul 2008 1525.0895 1525.2852 1525.3523 1525.3724 1526.2604 1526.1913 1526.8383
#> Aug 2008 1528.8037 1529.0080 1529.0871 1529.1084 1529.9071 1529.8619 1530.4880
#> Sep 2008 1534.8149 1535.0113 1535.0910 1535.1138 1535.7863 1535.7737 1536.3594
#> Oct 2008 1543.1544 1543.3232 1543.3885 1543.4117 1543.9385 1543.9350 1544.4693
#> Nov 2008 1553.0453 1553.1683 1553.2038 1553.2257 1553.6017 1553.5578 1554.0420
#> Dec 2008 1563.4560 1563.5185 1563.5119 1563.5299 1563.7659 1563.6161 1564.0589
#> Jan 2009 1573.5672 1573.5620 1573.5069 1573.5186 1573.6393 1573.3184 1573.7358
#> Feb 2009 1582.4184 1582.3503 1582.2486 1582.2525 1582.2823 1581.7726 1582.1658
#> Mar 2009 1589.3599 1589.2407 1589.1016 1589.0970 1589.0620 1588.3613 1588.7341
#> Apr 2009 1593.8456 1593.6916 1593.5303 1593.5172 1593.4418 1592.5474 1592.9211
#> May 2009 1595.5913 1595.4200 1595.2573 1595.2365 1595.1408 1594.0431 1594.4612
#> Jun 2009 1594.7323 1594.5583 1594.4119 1594.3847 1594.2817 1592.9777 1593.4856
#> Jul 2009 1591.5729 1591.4058 1591.2842 1591.2543 1591.0975 1589.5751 1590.2464
#> Aug 2009 1586.4017 1586.2481 1586.1545 1586.1263 1585.9177 1584.2328 1585.1206
#> Sep 2009 1580.0648 1579.9318 1579.8655 1579.8429 1579.6327 1577.8859 1578.9898
#> Oct 2009 1573.0963 1572.9885 1572.9449 1572.9302 1572.7753 1571.0832 1572.3405
#> Nov 2009 1566.2049 1566.1221 1566.0939 1566.0870 1566.0383 1564.5039 1565.8024
#> Dec 2009 1559.9143 1559.8520 1559.8303 1559.8294 1559.9214 1558.6163 1559.8233
#> Jan 2010 1554.7351 1554.6866 1554.6639 1554.6663 1554.9109 1553.8674 1554.8608
#> Feb 2010 1550.9605 1550.9105 1550.8831 1550.8848 1551.2720 1550.4718 1551.1640
#> Mar 2010 1548.5835 1548.5212 1548.4906 1548.4881 1548.9779 1548.3822 1548.7263
#> Apr 2010 1547.4816 1547.3951 1547.3671 1547.3585 1547.8861 1547.4474 1547.4497
#> May 2010 1547.4206 1547.3002 1547.2712 1547.2568 1547.7266 1547.4350 1547.1250
#> Jun 2010 1548.1551 1548.0070 1547.9759 1547.9556 1548.2916 1548.1332 1547.5984
#> Jul 2010 1549.5233 1549.3747 1549.3593 1549.3322 1549.5667 1549.4775 1548.8793
#> Aug 2010 1550.9023 1550.7949 1550.8180 1550.7854 1550.9127 1550.7753 1550.3039
#> Sep 2010 1551.5389 1551.5213 1551.6070 1551.5745 1551.5559 1551.2504 1551.0769
#> Oct 2010 1550.8129 1550.9340 1551.1047 1551.0830 1550.8913 1550.3591 1550.6327
#> Nov 2010 1548.2070 1548.5036 1548.7743 1548.7768 1548.4123 1547.6760 1548.4923
#> Dec 2010 1543.8124 1544.3012 1544.6759 1544.7157 1544.2086 1543.3673 1544.7462
#> Jan 2011 1537.8136 1538.4864 1538.9564 1539.0432 1538.4482 1537.6511 1539.5336
#> Feb 2011 1530.7450 1531.5554 1532.1023 1532.2390 1531.6299 1531.0188 1533.2934
#> Mar 2011 1523.4258 1524.3060 1524.9021 1525.0837 1524.5414 1524.1902 1526.7356
#> Apr 2011 1516.3378 1517.1897 1517.7997 1518.0156 1517.6012 1517.5326 1520.2241
#> May 2011 1509.9750 1510.7206 1511.3218 1511.5572 1511.3027 1511.4776 1514.2167
#> Jun 2011 1504.5668 1505.1570 1505.7187 1505.9489 1505.8446 1506.1969 1508.9099
#> Jul 2011 1500.2944 1500.7139 1501.2060 1501.4084 1501.3964 1501.8643 1504.4941
#> Aug 2011 1497.3656 1497.6291 1498.0286 1498.1875 1498.2335 1498.8012 1501.2684
#> Sep 2011 1496.0463 1496.1948 1496.4855 1496.5954 1496.6184 1497.2258 1499.4256
#> Oct 2011 1496.3747 1496.4658 1496.6410 1496.7079 1496.6184 1497.2000 1499.0682
#> Nov 2011 1498.5942 1498.6899 1498.7533 1498.7934 1498.5152 1499.0208 1500.5535
#> Dec 2011 1502.6002 1502.7518 1502.7161 1502.7514 1502.2401 1502.6388 1503.8859
#> Jan 2012 1507.8001 1508.0316 1507.9141 1507.9677 1507.2226 1507.5011 1508.5527
#> Feb 2012 1513.5366 1513.8213 1513.6427 1513.7318 1512.7992 1512.9610 1513.9351
#> Mar 2012 1519.1150 1519.4047 1519.1798 1519.3142 1518.2709 1518.3537 1519.3589
#> Apr 2012 1524.0302 1524.2286 1523.9662 1524.1447 1523.0866 1523.1403 1524.2601
#> May 2012 1527.9422 1527.9881 1527.7175 1527.9272 1526.9607 1527.0128 1528.3068
#> Jun 2012 1530.7868 1530.6762 1530.4379 1530.6427 1529.8693 1529.8867 1531.4118
#> Jul 2012 1532.4143 1532.1765 1531.9943 1532.1623 1531.4843 1531.5477 1533.1952
#> Aug 2012 1532.8964 1532.5889 1532.4669 1532.5786 1531.8046 1531.9874 1533.6247
#> Sep 2012 1532.4503 1532.1548 1532.0917 1532.1418 1531.2177 1531.5002 1533.0260
#> Oct 2012 1531.3417 1531.1439 1531.1290 1531.1268 1530.0883 1530.3353 1531.7847
#> Nov 2012 1529.8200 1529.7917 1529.8066 1529.7737 1528.7449 1528.7586 1530.2802
#> Dec 2012 1528.1866 1528.3671 1528.3887 1528.3540 1527.5171 1527.0782 1528.8832
#> Jan 2013 1526.8424 1527.2254 1527.2304 1527.2237 1526.7778 1525.6926 1528.0091
#> Feb 2013 1525.8896 1526.4847 1526.4438 1526.4956 1526.6031 1524.7602 1527.7638
#> Mar 2013 1525.4113 1526.1731 1526.0720 1526.1989 1526.9608 1524.3470 1528.1419
#> Apr 2013 1525.3945 1526.2903 1526.1417 1526.3368 1527.7757 1524.4669 1529.0774
#> May 2013 1525.7246 1526.6351 1526.4354 1526.6689 1528.7129 1524.8683 1530.2287
#> Jun 2013 1526.1296 1526.8088 1526.5798 1526.8205 1529.2949 1525.1542 1531.0904
#> Jul 2013 1526.4066 1526.5545 1526.3655 1526.5746 1529.4172 1525.2058 1531.4824
#> Aug 2013 1526.5808 1525.9082 1525.8644 1525.9933 1529.0713 1524.8078 1531.1216
#> Sep 2013 1526.5299 1524.7935 1525.0105 1525.0110 1527.9814 1523.8046 1529.9515
#> Oct 2013 1526.2362 1523.2746 1523.8563 1523.6866 1526.0607 1522.3037 1528.0207
#> Nov 2013 1525.6128 1521.3692 1522.3877 1522.0169 1523.2262 1520.3235 1525.2484
#> Dec 2013 1524.4818 1519.0052 1520.4896 1519.9020 1519.3835 1517.7977 1521.5621
#> Jan 2014 1522.8551 1516.2879 1518.2220 1517.4181 1514.7134 1514.8671 1517.1543
#> Feb 2014 1520.8898 1513.4271 1515.7597 1514.7518 1509.5808 1511.7880 1512.3812
#> Mar 2014 NaN 1510.6475 1513.2943 1512.1062 1504.3819 1508.8202 1507.6085
#> Apr 2014 NaN NaN 1511.2871 1509.9461 1499.7644 1506.4675 1503.4449
#> May 2014 NaN NaN NaN 1508.5020 1496.1007 1504.9797 1500.2161
#> Jun 2014 NaN NaN NaN NaN 1493.4488 1504.3152 1497.9240
#> Jul 2014 NaN NaN NaN NaN NaN 1504.3575 1496.5893
#> Aug 2014 NaN NaN NaN NaN NaN NaN 1496.3629
#> Sep 2014 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2014 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2014 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2014 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2015 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2015 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2015 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 57 Series 58 Series 59 Series 60 Series 61 Series 62 Series 63
#> Apr 1982 482.6870 482.6854 482.6998 482.6975 482.7083 482.7088 482.7051
#> May 1982 483.8019 483.7999 483.8154 483.8126 483.8241 483.8247 483.8213
#> Jun 1982 485.2403 485.2377 485.2560 485.2522 485.2658 485.2666 485.2634
#> Jul 1982 486.1822 486.1799 486.1958 486.1924 486.2041 486.2049 486.2024
#> Aug 1982 487.3472 487.3448 487.3605 487.3569 487.3685 487.3694 487.3672
#> Sep 1982 488.7406 488.7381 488.7541 488.7503 488.7620 488.7630 488.7611
#> Oct 1982 490.3484 490.3459 490.3615 490.3576 490.3691 490.3701 490.3683
#> Nov 1982 492.0490 492.0470 492.0598 492.0568 492.0663 492.0671 492.0655
#> Dec 1982 493.8207 493.8192 493.8295 493.8272 493.8348 493.8354 493.8338
#> Jan 1983 495.5368 495.5359 495.5430 495.5418 495.5472 495.5475 495.5458
#> Feb 1983 497.2578 497.2576 497.2614 497.2612 497.2643 497.2643 497.2625
#> Mar 1983 499.0612 499.0616 499.0622 499.0630 499.0637 499.0634 499.0616
#> Apr 1983 500.9242 500.9252 500.9221 500.9239 500.9220 500.9214 500.9199
#> May 1983 503.0095 503.0110 503.0048 503.0073 503.0030 503.0022 503.0012
#> Jun 1983 505.3824 505.3842 505.3756 505.3785 505.3724 505.3715 505.3710
#> Jul 1983 508.0593 508.0611 508.0518 508.0548 508.0482 508.0473 508.0472
#> Aug 1983 511.0140 511.0153 511.0086 511.0107 511.0059 511.0052 511.0051
#> Sep 1983 514.3004 514.3008 514.2997 514.3004 514.2996 514.2993 514.2988
#> Oct 1983 518.0205 518.0195 518.0271 518.0256 518.0311 518.0314 518.0301
#> Nov 1983 522.2375 522.2348 522.2530 522.2489 522.2622 522.2632 522.2606
#> Dec 1983 526.8736 526.8693 526.8981 526.8916 526.9127 526.9143 526.9103
#> Jan 1984 531.8476 531.8418 531.8805 531.8717 531.9000 531.9022 531.8968
#> Feb 1984 536.9501 536.9432 536.9897 536.9792 537.0134 537.0160 537.0094
#> Mar 1984 541.9456 541.9380 541.9893 541.9776 542.0155 542.0184 542.0111
#> Apr 1984 546.7863 546.7783 546.8315 546.8193 546.8587 546.8617 546.8543
#> May 1984 551.4865 551.4787 551.5305 551.5185 551.5570 551.5600 551.5530
#> Jun 1984 555.9968 555.9897 556.0366 556.0256 556.0605 556.0633 556.0572
#> Jul 1984 560.4854 560.4795 560.5180 560.5088 560.5373 560.5397 560.5350
#> Aug 1984 565.2476 565.2434 565.2702 565.2636 565.2834 565.2851 565.2822
#> Sep 1984 570.3672 570.3651 570.3778 570.3745 570.3836 570.3845 570.3834
#> Oct 1984 576.1160 576.1161 576.1149 576.1150 576.1135 576.1136 576.1142
#> Nov 1984 582.5673 582.5693 582.5562 582.5592 582.5488 582.5481 582.5500
#> Dec 1984 589.7024 589.7058 589.6840 589.6892 589.6723 589.6710 589.6736
#> Jan 1985 597.5301 597.5344 597.5072 597.5139 597.4933 597.4915 597.4945
#> Feb 1985 605.8220 605.8269 605.7966 605.8044 605.7820 605.7800 605.7829
#> Mar 1985 614.2206 614.2258 614.1940 614.2023 614.1795 614.1773 614.1800
#> Apr 1985 622.4230 622.4285 622.3959 622.4048 622.3823 622.3799 622.3822
#> May 1985 630.0295 630.0350 630.0028 630.0119 629.9904 629.9879 629.9897
#> Jun 1985 636.4594 636.4649 636.4337 636.4427 636.4224 636.4198 636.4211
#> Jul 1985 641.4135 641.4187 641.3896 641.3981 641.3792 641.3768 641.3778
#> Aug 1985 644.6651 644.6698 644.6433 644.6509 644.6330 644.6308 644.6321
#> Sep 1985 646.5056 646.5093 646.4866 646.4925 646.4759 646.4743 646.4764
#> Oct 1985 647.3008 647.3033 647.2854 647.2891 647.2744 647.2735 647.2768
#> Nov 1985 647.7112 647.7123 647.6995 647.7007 647.6880 647.6879 647.6927
#> Dec 1985 648.5114 648.5111 648.5031 648.5018 648.4914 648.4922 648.4987
#> Jan 1986 650.1567 650.1550 650.1518 650.1481 650.1408 650.1424 650.1504
#> Feb 1986 652.7932 652.7902 652.7928 652.7867 652.7845 652.7868 652.7958
#> Mar 1986 656.5288 656.5241 656.5353 656.5265 656.5325 656.5357 656.5448
#> Apr 1986 661.3764 661.3697 661.3929 661.3810 661.3989 661.4030 661.4109
#> May 1986 667.1107 667.1020 667.1385 667.1235 667.1557 667.1605 667.1665
#> Jun 1986 673.4640 673.4534 673.5042 673.4863 673.5333 673.5388 673.5422
#> Jul 1986 680.1371 680.1248 680.1890 680.1686 680.2276 680.2336 680.2341
#> Aug 1986 686.5683 686.5549 686.6295 686.6075 686.6729 686.6792 686.6768
#> Sep 1986 692.3932 692.3791 692.4610 692.4383 692.5034 692.5097 692.5048
#> Oct 1986 697.4196 697.4056 697.4901 697.4677 697.5262 697.5323 697.5254
#> Nov 1986 701.3020 701.2889 701.3700 701.3493 701.3967 701.4021 701.3942
#> Dec 1986 704.1093 704.0979 704.1707 704.1526 704.1875 704.1921 704.1841
#> Jan 1987 706.0163 706.0073 706.0661 706.0520 706.0746 706.0781 706.0708
#> Feb 1987 707.2983 707.2921 707.3338 707.3243 707.3376 707.3399 707.3339
#> Mar 1987 708.5225 708.5193 708.5429 708.5381 708.5469 708.5480 708.5435
#> Apr 1987 710.0901 710.0898 710.0960 710.0958 710.1044 710.1044 710.1014
#> May 1987 712.0430 712.0450 712.0367 712.0401 712.0539 712.0530 712.0513
#> Jun 1987 714.6374 714.6409 714.6227 714.6285 714.6506 714.6490 714.6486
#> Jul 1987 718.0123 718.0162 717.9946 718.0011 718.0290 718.0273 718.0276
#> Aug 1987 722.1978 722.2011 722.1827 722.1881 722.2163 722.2149 722.2153
#> Sep 1987 727.2312 727.2332 727.2223 727.2256 727.2428 727.2418 727.2421
#> Oct 1987 732.7408 732.7415 732.7383 732.7394 732.7373 732.7368 732.7368
#> Nov 1987 738.4006 738.4002 738.4037 738.4031 738.3798 738.3797 738.3792
#> Dec 1987 743.6921 743.6910 743.6991 743.6973 743.6576 743.6577 743.6568
#> Jan 1988 748.0662 748.0647 748.0756 748.0732 748.0271 748.0274 748.0259
#> Feb 1988 751.6361 751.6345 751.6464 751.6439 751.6044 751.6048 751.6027
#> Mar 1988 754.6783 754.6769 754.6879 754.6859 754.6651 754.6655 754.6630
#> Apr 1988 757.3249 757.3240 757.3314 757.3303 757.3369 757.3373 757.3350
#> May 1988 759.6993 759.6991 759.7018 759.7017 759.7415 759.7418 759.7400
#> Jun 1988 762.0424 762.0428 762.0413 762.0420 762.1125 762.1128 762.1117
#> Jul 1988 764.3792 764.3797 764.3762 764.3771 764.4645 764.4647 764.4644
#> Aug 1988 766.7887 766.7889 766.7866 766.7869 766.8720 766.8723 766.8726
#> Sep 1988 769.2087 769.2085 769.2089 769.2083 769.2637 769.2639 769.2647
#> Oct 1988 771.5351 771.5344 771.5378 771.5364 771.5468 771.5470 771.5479
#> Nov 1988 773.9887 773.9876 773.9937 773.9918 773.9561 773.9562 773.9569
#> Dec 1988 776.6851 776.6839 776.6913 776.6893 776.6187 776.6187 776.6189
#> Jan 1989 779.6536 779.6526 779.6596 779.6580 779.5730 779.5729 779.5725
#> Feb 1989 783.0209 783.0204 783.0249 783.0243 782.9493 782.9491 782.9481
#> Mar 1989 786.7936 786.7941 786.7932 786.7942 786.7520 786.7517 786.7503
#> Apr 1989 790.6367 790.6383 790.6307 790.6335 790.6409 790.6405 790.6391
#> May 1989 794.6439 794.6465 794.6333 794.6376 794.6926 794.6921 794.6905
#> Jun 1989 798.9421 798.9453 798.9283 798.9336 799.0228 799.0223 799.0208
#> Jul 1989 803.2302 803.2336 803.2146 803.2202 803.3400 803.3393 803.3385
#> Aug 1989 807.4364 807.4397 807.4202 807.4254 807.5661 807.5652 807.5656
#> Sep 1989 811.2262 811.2287 811.2119 811.2158 811.3771 811.3765 811.3784
#> Oct 1989 814.3043 814.3049 814.2968 814.2975 814.4772 814.4773 814.4806
#> Nov 1989 816.6320 816.6301 816.6347 816.6311 816.8059 816.8070 816.8117
#> Dec 1989 818.1290 818.1243 818.1423 818.1340 818.2623 818.2646 818.2705
#> Jan 1990 818.9547 818.9476 818.9773 818.9649 818.9980 819.0013 819.0084
#> Feb 1990 819.4547 819.4459 819.4830 819.4679 819.3607 819.3649 819.3730
#> Mar 1990 819.6454 819.6360 819.6751 819.6587 819.3806 819.3850 819.3941
#> Apr 1990 819.6926 819.6833 819.7201 819.7039 819.2445 819.2488 819.2587
#> May 1990 819.7356 819.7271 819.7589 819.7440 819.1162 819.1199 819.1302
#> Jun 1990 819.7985 819.7914 819.8158 819.8033 819.0337 819.0365 819.0466
#> Jul 1990 819.7593 819.7546 819.7672 819.7586 818.8823 818.8838 818.8935
#> Aug 1990 819.5451 819.5431 819.5424 819.5384 818.6167 818.6170 818.6259
#> Sep 1990 819.1829 819.1833 819.1718 819.1719 818.2869 818.2860 818.2940
#> Oct 1990 819.1751 819.1766 819.1625 819.1645 818.3756 818.3737 818.3808
#> Nov 1990 819.7810 819.7814 819.7769 819.7774 819.1137 819.1114 819.1174
#> Dec 1990 821.0345 821.0312 821.0515 821.0461 820.5137 820.5116 820.5162
#> Jan 1991 823.1628 823.1532 823.2127 823.1973 822.7814 822.7804 822.7830
#> Feb 1991 826.0709 826.0534 826.1612 826.1331 825.8016 825.8022 825.8021
#> Mar 1991 829.4122 829.3860 829.5463 829.5040 829.2153 829.2180 829.2144
#> Apr 1991 833.1797 833.1452 833.3551 833.2995 833.0119 833.0168 833.0094
#> May 1991 837.3271 837.2861 837.5345 837.4684 837.1551 837.1618 837.1513
#> Jun 1991 841.4054 841.3605 841.6310 841.5587 841.2249 841.2331 841.2208
#> Jul 1991 845.3884 845.3425 845.6183 845.5442 845.2132 845.2223 845.2099
#> Aug 1991 849.2713 849.2270 849.4918 849.4203 849.1133 849.1228 849.1118
#> Sep 1991 852.8780 852.8379 853.0771 853.0121 852.7544 852.7638 852.7558
#> Oct 1991 856.1127 856.0790 856.2790 856.2245 856.0276 856.0362 856.0323
#> Nov 1991 858.6561 858.6306 858.7812 858.7400 858.6084 858.6156 858.6161
#> Dec 1991 860.4255 860.4089 860.5070 860.4801 860.4138 860.4192 860.4234
#> Jan 1992 861.7794 861.7712 861.8199 861.8066 861.7989 861.8022 861.8086
#> Feb 1992 862.9085 862.9072 862.9153 862.9132 862.9522 862.9536 862.9597
#> Mar 1992 864.1392 864.1426 864.1230 864.1286 864.1991 864.1989 864.2022
#> Apr 1992 865.7493 865.7553 865.7207 865.7306 865.8162 865.8149 865.8137
#> May 1992 867.8047 867.8119 867.7710 867.7827 867.8700 867.8679 867.8619
#> Jun 1992 870.1608 870.1680 870.1270 870.1387 870.2192 870.2170 870.2071
#> Jul 1992 872.5900 872.5963 872.5601 872.5703 872.6445 872.6425 872.6307
#> Aug 1992 875.2121 875.2164 875.1917 875.1987 875.2722 875.2709 875.2602
#> Sep 1992 878.3192 878.3209 878.3104 878.3133 878.3581 878.3574 878.3518
#> Oct 1992 881.6936 881.6929 881.6966 881.6954 881.6789 881.6789 881.6810
#> Nov 1992 884.8487 884.8459 884.8617 884.8571 884.7864 884.7870 884.7975
#> Dec 1992 887.5722 887.5681 887.5912 887.5846 887.4875 887.4884 887.5057
#> Jan 1993 889.6103 889.6063 889.6289 889.6225 889.5386 889.5396 889.5604
#> Feb 1993 890.7793 890.7767 890.7920 890.7877 890.7619 890.7626 890.7818
#> Mar 1993 891.1128 891.1122 891.1160 891.1150 891.1856 891.1859 891.1990
#> Apr 1993 890.7082 890.7100 890.6995 890.7025 890.8914 890.8912 890.8953
#> May 1993 889.6537 889.6578 889.6339 889.6406 889.9485 889.9477 889.9421
#> Jun 1993 888.4983 888.5038 888.4715 888.4806 888.8844 888.8832 888.8694
#> Jul 1993 887.7257 887.7317 887.6972 887.7070 888.1646 888.1631 888.1445
#> Aug 1993 887.6363 887.6423 887.6082 887.6179 888.0775 888.0758 888.0566
#> Sep 1993 888.5067 888.5122 888.4808 888.4898 888.9032 888.9013 888.8886
#> Oct 1993 890.2709 890.2755 890.2501 890.2576 890.5953 890.5935 890.5930
#> Nov 1993 892.9350 892.9375 892.9242 892.9284 893.1732 893.1719 893.1862
#> Dec 1993 896.7885 896.7878 896.7930 896.7921 896.9429 896.9429 896.9707
#> Jan 1994 901.6290 901.6244 901.6526 901.6452 901.7163 901.7180 901.7549
#> Feb 1994 907.1392 907.1301 907.1839 907.1694 907.1842 907.1880 907.2302
#> Mar 1994 913.0663 913.0531 913.1311 913.1098 913.0976 913.1034 913.1460
#> Apr 1994 918.8181 918.8014 918.8993 918.8723 918.8645 918.8722 918.9078
#> May 1994 923.8200 923.8004 923.9141 923.8824 923.9067 923.9158 923.9364
#> Jun 1994 927.9529 927.9315 928.0557 928.0208 928.0913 928.1014 928.0998
#> Jul 1994 931.4265 931.4042 931.5320 931.4958 931.6094 931.6198 931.5911
#> Aug 1994 934.3590 934.3371 934.4618 934.4262 934.5686 934.5788 934.5201
#> Sep 1994 936.4903 936.4697 936.5861 936.5526 936.7076 936.7170 936.6310
#> Oct 1994 938.0040 937.9856 938.0893 938.0593 938.2249 938.2333 938.1258
#> Nov 1994 939.4314 939.4161 939.5020 939.4771 939.6447 939.6517 939.5319
#> Dec 1994 941.0335 941.0224 941.0843 941.0661 941.2234 941.2284 941.1074
#> Jan 1995 942.7599 942.7536 942.7880 942.7777 942.9127 942.9155 942.8037
#> Feb 1995 944.5799 944.5786 944.5843 944.5821 944.6891 944.6896 944.5913
#> Mar 1995 946.4145 946.4182 946.3955 946.4013 946.4738 946.4720 946.3914
#> Apr 1995 948.3480 948.3559 948.3086 948.3213 948.3544 948.3507 948.2916
#> May 1995 950.5584 950.5698 950.5031 950.5214 950.5114 950.5060 950.4722
#> Jun 1995 953.0100 953.0240 952.9419 952.9646 952.9088 952.9021 952.8962
#> Jul 1995 955.5171 955.5330 955.4398 955.4655 955.3659 955.3583 955.3800
#> Aug 1995 958.0513 958.0683 957.9678 957.9956 957.8621 957.8540 957.8976
#> Sep 1995 960.3515 960.3687 960.2673 960.2953 960.1547 960.1467 960.1961
#> Oct 1995 962.3296 962.3457 962.2498 962.2764 962.1496 962.1421 962.1862
#> Nov 1995 964.1646 964.1788 964.0944 964.1177 964.0101 964.0038 964.0438
#> Dec 1995 965.8338 965.8450 965.7781 965.7966 965.7009 965.6960 965.7442
#> Jan 1996 967.1583 967.1655 967.1226 967.1346 967.0350 967.0320 967.1072
#> Feb 1996 968.1259 968.1284 968.1141 968.1184 968.0025 968.0016 968.1165
#> Mar 1996 968.4787 968.4762 968.4927 968.4886 968.3473 968.3486 968.5100
#> Apr 1996 968.2167 968.2092 968.2563 968.2440 968.0696 968.0730 968.2849
#> May 1996 967.7980 967.7859 967.8606 967.8408 967.6293 967.6346 967.8964
#> Jun 1996 967.4363 967.4207 967.5166 967.4912 967.2437 967.2504 967.5556
#> Jul 1996 967.1938 967.1759 967.2864 967.2572 966.9830 966.9908 967.3265
#> Aug 1996 967.1456 967.1265 967.2443 967.2135 966.9334 966.9418 967.2852
#> Sep 1996 967.6495 967.6307 967.7472 967.7171 967.4479 967.4564 967.7887
#> Oct 1996 968.9521 968.9349 969.0413 969.0143 968.7692 968.7773 969.0807
#> Nov 1996 970.9089 970.8948 970.9822 970.9605 970.7489 970.7560 971.0160
#> Dec 1996 973.2474 973.2369 973.3010 973.2853 973.1157 973.1214 973.3271
#> Jan 1997 975.9912 975.9843 976.0244 976.0148 975.8929 975.8969 976.0419
#> Feb 1997 979.1260 979.1224 979.1403 979.1359 979.0533 979.0555 979.1487
#> Mar 1997 982.5646 982.5634 982.5645 982.5638 982.5077 982.5085 982.5651
#> Apr 1997 986.1729 986.1728 986.1648 986.1658 986.1307 986.1305 986.1597
#> May 1997 989.5244 989.5245 989.5138 989.5148 989.5045 989.5036 989.5049
#> Jun 1997 992.3509 992.3502 992.3433 992.3427 992.3731 992.3722 992.3335
#> Jul 1997 994.5469 994.5446 994.5463 994.5431 994.6348 994.6343 994.5382
#> Aug 1997 996.0734 996.0692 996.0816 996.0753 996.2291 996.2293 996.0771
#> Sep 1997 996.9532 996.9474 996.9685 996.9597 997.1742 997.1751 996.9679
#> Oct 1997 997.4941 997.4878 997.5115 997.5024 997.7773 997.7786 997.5124
#> Nov 1997 997.7906 997.7854 997.8041 997.7972 998.1496 998.1509 997.8039
#> Dec 1997 998.0566 998.0542 998.0596 998.0576 998.5139 998.5149 998.0554
#> Jan 1998 998.6854 998.6877 998.6711 998.6768 999.2625 999.2628 998.6600
#> Feb 1998 999.8934 999.9017 999.8562 999.8716 1000.5898 1000.5890 999.8360
#> Mar 1998 1001.9393 1001.9543 1001.8776 1001.9033 1002.7394 1002.7372 1001.8477
#> Apr 1998 1004.9815 1005.0028 1004.8967 1004.9320 1005.8643 1005.8606 1004.8580
#> May 1998 1008.8475 1008.8740 1008.7439 1008.7871 1009.7908 1009.7858 1008.6982
#> Jun 1998 1013.0647 1013.0943 1012.9509 1012.9987 1014.0498 1014.0438 1012.9018
#> Jul 1998 1017.3860 1017.4161 1017.2725 1017.3207 1018.3965 1018.3904 1017.2242
#> Aug 1998 1021.2818 1021.3098 1021.1789 1021.2236 1022.3050 1022.2994 1021.1355
#> Sep 1998 1024.6362 1024.6594 1024.5533 1024.5907 1025.6479 1025.6438 1024.5184
#> Oct 1998 1027.3146 1027.3311 1027.2574 1027.2847 1028.2863 1028.2842 1027.2327
#> Nov 1998 1029.5429 1029.5516 1029.5145 1029.5301 1030.4431 1030.4432 1029.5004
#> Dec 1998 1031.6974 1031.6983 1031.6965 1031.7004 1032.4943 1032.4964 1031.6920
#> Jan 1999 1034.2961 1034.2906 1034.3159 1034.3103 1034.9603 1034.9639 1034.3179
#> Feb 1999 1037.5718 1037.5617 1037.6048 1037.5923 1038.0954 1038.0998 1037.6102
#> Mar 1999 1041.7468 1041.7347 1041.7844 1041.7686 1042.1434 1042.1477 1041.7903
#> Apr 1999 1046.7860 1046.7743 1046.8194 1046.8039 1047.0706 1047.0741 1046.8226
#> May 1999 1052.3276 1052.3180 1052.3511 1052.3385 1052.5136 1052.5158 1052.3502
#> Jun 1999 1058.1991 1058.1925 1058.2106 1058.2019 1058.2928 1058.2935 1058.2051
#> Jul 1999 1063.9893 1063.9858 1063.9895 1063.9849 1063.9912 1063.9904 1063.9810
#> Aug 1999 1069.2599 1069.2592 1069.2509 1069.2498 1069.1802 1069.1777 1069.2404
#> Sep 1999 1073.6089 1073.6107 1073.5919 1073.5941 1073.4833 1073.4793 1073.5796
#> Oct 1999 1076.7201 1076.7238 1076.6978 1076.7027 1076.5853 1076.5806 1076.6842
#> Nov 1999 1078.6169 1078.6210 1078.5932 1078.5995 1078.4989 1078.4950 1078.5781
#> Dec 1999 1079.6605 1079.6635 1079.6385 1079.6450 1079.5680 1079.5666 1079.6205
#> Jan 2000 1079.8377 1079.8380 1079.8200 1079.8256 1079.7627 1079.7653 1079.7969
#> Feb 2000 1079.3749 1079.3711 1079.3625 1079.3662 1079.3028 1079.3106 1079.3309
#> Mar 2000 1078.5481 1078.5396 1078.5400 1078.5416 1078.4717 1078.4850 1078.4964
#> Apr 2000 1077.6916 1077.6785 1077.6853 1077.6850 1077.6051 1077.6234 1077.6263
#> May 2000 1077.3299 1077.3126 1077.3230 1077.3214 1077.2290 1077.2510 1077.2474
#> Jun 2000 1077.6891 1077.6688 1077.6788 1077.6766 1077.5687 1077.5929 1077.5868
#> Jul 2000 1079.0427 1079.0213 1079.0245 1079.0234 1078.8979 1078.9221 1078.9174
#> Aug 2000 1081.3732 1081.3528 1081.3443 1081.3459 1081.2009 1081.2231 1081.2255
#> Sep 2000 1084.7883 1084.7705 1084.7480 1084.7529 1084.5793 1084.5977 1084.6219
#> Oct 2000 1089.1204 1089.1057 1089.0720 1089.0795 1088.8723 1088.8863 1088.9457
#> Nov 2000 1094.0939 1094.0820 1094.0433 1094.0517 1093.8104 1093.8201 1093.9241
#> Dec 2000 1099.2351 1099.2254 1099.1881 1099.1956 1098.9256 1098.9318 1099.0826
#> Jan 2001 1104.0667 1104.0580 1104.0305 1104.0350 1103.7496 1103.7537 1103.9444
#> Feb 2001 1108.5211 1108.5120 1108.5019 1108.5014 1108.2187 1108.2224 1108.4387
#> Mar 2001 1112.8166 1112.8060 1112.8172 1112.8109 1112.5408 1112.5455 1112.7773
#> Apr 2001 1117.1837 1117.1708 1117.2053 1117.1926 1116.9435 1116.9504 1117.1875
#> May 2001 1121.8525 1121.8371 1121.8936 1121.8750 1121.6556 1121.6649 1121.8946
#> Jun 2001 1127.0764 1127.0594 1127.1307 1127.1084 1126.9253 1126.9358 1127.1446
#> Jul 2001 1132.9440 1132.9268 1133.0046 1132.9808 1132.8395 1132.8480 1133.0235
#> Aug 2001 1139.5895 1139.5733 1139.6482 1139.6255 1139.5267 1139.5302 1139.6637
#> Sep 2001 1146.9310 1146.9170 1146.9824 1146.9628 1146.9008 1146.8982 1146.9902
#> Oct 2001 1155.0187 1155.0076 1155.0592 1155.0439 1155.0106 1155.0029 1155.0586
#> Nov 2001 1163.7617 1163.7540 1163.7892 1163.7791 1163.7650 1163.7550 1163.7821
#> Dec 2001 1172.6613 1172.6569 1172.6766 1172.6715 1172.6699 1172.6613 1172.6676
#> Jan 2002 1181.2176 1181.2157 1181.2243 1181.2228 1181.2318 1181.2283 1181.2192
#> Feb 2002 1189.3189 1189.3189 1189.3203 1189.3213 1189.3410 1189.3451 1189.3237
#> Mar 2002 1196.8384 1196.8394 1196.8383 1196.8402 1196.8697 1196.8824 1196.8534
#> Apr 2002 1203.6812 1203.6821 1203.6843 1203.6854 1203.7250 1203.7458 1203.7125
#> May 2002 1209.8959 1209.8962 1209.9049 1209.9041 1209.9501 1209.9765 1209.9448
#> Jun 2002 1215.6168 1215.6162 1215.6317 1215.6289 1215.6787 1215.7070 1215.6788
#> Jul 2002 1221.3279 1221.3265 1221.3470 1221.3425 1221.3945 1221.4172 1221.3915
#> Aug 2002 1227.3573 1227.3550 1227.3799 1227.3737 1227.4235 1227.4362 1227.4150
#> Sep 2002 1233.9182 1233.9145 1233.9437 1233.9357 1233.9787 1233.9797 1233.9655
#> Oct 2002 1240.7942 1240.7897 1240.8199 1240.8111 1240.8453 1240.8361 1240.8276
#> Nov 2002 1247.4771 1247.4731 1247.4964 1247.4892 1247.5140 1247.4970 1247.4898
#> Dec 2002 1253.6178 1253.6161 1253.6243 1253.6214 1253.6397 1253.6171 1253.6037
#> Jan 2003 1259.5782 1259.5805 1259.5666 1259.5702 1259.5873 1259.5614 1259.5338
#> Feb 2003 1265.6796 1265.6865 1265.6484 1265.6595 1265.6811 1265.6549 1265.6080
#> Mar 2003 1272.0961 1272.1074 1272.0492 1272.0669 1272.0974 1272.0740 1272.0078
#> Apr 2003 1278.9386 1278.9533 1278.8824 1278.9051 1278.9460 1278.9275 1278.8464
#> May 2003 1286.0467 1286.0635 1285.9883 1286.0136 1286.0645 1286.0530 1285.9629
#> Jun 2003 1293.0675 1293.0842 1293.0152 1293.0399 1293.0989 1293.0942 1293.0029
#> Jul 2003 1299.6737 1299.6883 1299.6335 1299.6547 1299.7171 1299.7117 1299.6273
#> Aug 2003 1305.7955 1305.8069 1305.7703 1305.7861 1305.8474 1305.8354 1305.7635
#> Sep 2003 1311.5713 1311.5786 1311.5623 1311.5716 1311.6283 1311.6076 1311.5518
#> Oct 2003 1317.1040 1317.1066 1317.1117 1317.1137 1317.1634 1317.1339 1317.0962
#> Nov 2003 1322.4574 1322.4550 1322.4819 1322.4763 1322.5192 1322.4850 1322.4651
#> Dec 2003 1328.0691 1328.0623 1328.1084 1328.0962 1328.1333 1328.1024 1328.0976
#> Jan 2004 1334.3760 1334.3664 1334.4236 1334.4076 1334.4387 1334.4209 1334.4269
#> Feb 2004 1341.1734 1341.1629 1341.2224 1341.2056 1341.2316 1341.2362 1341.2473
#> Mar 2004 1348.0463 1348.0368 1348.0901 1348.0755 1348.0974 1348.1312 1348.1419
#> Apr 2004 1354.6387 1354.6320 1354.6703 1354.6608 1354.6781 1354.7436 1354.7498
#> May 2004 1361.1862 1361.1838 1361.1999 1361.1975 1361.2090 1361.3059 1361.3051
#> Jun 2004 1368.0529 1368.0550 1368.0467 1368.0520 1368.0560 1368.1780 1368.1701
#> Jul 2004 1375.2297 1375.2352 1375.2088 1375.2200 1375.2176 1375.3672 1375.3544
#> Aug 2004 1382.5261 1382.5334 1382.4977 1382.5122 1382.5058 1382.6781 1382.6626
#> Sep 2004 1389.2120 1389.2203 1389.1791 1389.1952 1389.1862 1389.3572 1389.3389
#> Oct 2004 1394.5857 1394.5951 1394.5467 1394.5642 1394.5501 1394.6827 1394.6620
#> Nov 2004 1398.2025 1398.2131 1398.1564 1398.1747 1398.1534 1398.2038 1398.1818
#> Dec 2004 1400.1212 1400.1329 1400.0675 1400.0861 1400.0556 1399.9851 1399.9633
#> Jan 2005 1400.5600 1400.5726 1400.4994 1400.5175 1400.4761 1400.2605 1400.2420
#> Feb 2005 1399.7812 1399.7946 1399.7156 1399.7328 1399.6802 1399.3152 1399.3027
#> Mar 2005 1397.9819 1397.9958 1397.9127 1397.9288 1397.8651 1397.3670 1397.3626
#> Apr 2005 1395.3296 1395.3442 1395.2571 1395.2726 1395.1984 1394.6014 1394.6059
#> May 2005 1391.7700 1391.7849 1391.6967 1391.7116 1391.6309 1390.9851 1390.9975
#> Jun 2005 1387.8694 1387.8838 1387.7981 1387.8120 1387.7304 1387.0805 1387.0984
#> Jul 2005 1384.2381 1384.2519 1384.1673 1384.1810 1384.1002 1383.4700 1383.4902
#> Aug 2005 1381.3352 1381.3483 1381.2635 1381.2777 1381.1995 1380.6067 1380.6257
#> Sep 2005 1379.4952 1379.5076 1379.4219 1379.4367 1379.3617 1378.8271 1378.8432
#> Oct 2005 1379.1754 1379.1871 1379.1005 1379.1159 1379.0437 1378.5932 1378.6056
#> Nov 2005 1380.9183 1380.9291 1380.8425 1380.8582 1380.7888 1380.4522 1380.4606
#> Dec 2005 1384.5560 1384.5658 1384.4806 1384.4961 1384.4289 1384.2313 1384.2366
#> Jan 2006 1389.2672 1389.2756 1389.1963 1389.2100 1389.1466 1389.1029 1389.1060
#> Feb 2006 1394.3717 1394.3785 1394.3107 1394.3206 1394.2639 1394.3737 1394.3759
#> Mar 2006 1399.5517 1399.5570 1399.5039 1399.5088 1399.4603 1399.7101 1399.7129
#> Apr 2006 1404.5601 1404.5638 1404.5277 1404.5266 1404.4876 1404.8525 1404.8568
#> May 2006 1409.4317 1409.4336 1409.4145 1409.4075 1409.3774 1409.8064 1409.8122
#> Jun 2006 1413.9113 1413.9107 1413.9079 1413.8958 1413.8739 1414.3182 1414.3248
#> Jul 2006 1417.6005 1417.5965 1417.6109 1417.5944 1417.5818 1417.9918 1417.9978
#> Aug 2006 1420.5296 1420.5220 1420.5515 1420.5314 1420.5284 1420.8704 1420.8743
#> Sep 2006 1422.6043 1422.5932 1422.6366 1422.6141 1422.6222 1422.9031 1422.9042
#> Oct 2006 1424.2775 1424.2629 1424.3242 1424.2993 1424.3246 1424.5881 1424.5857
#> Nov 2006 1426.3046 1426.2867 1426.3700 1426.3429 1426.3918 1426.7020 1426.6960
#> Dec 2006 1429.3406 1429.3201 1429.4265 1429.3982 1429.4742 1429.8993 1429.8902
#> Jan 2007 1433.8007 1433.7784 1433.9091 1433.8798 1433.9858 1434.5818 1434.5704
#> Feb 2007 1439.8855 1439.8629 1440.0173 1439.9870 1440.1234 1440.9170 1440.9041
#> Mar 2007 1447.4842 1447.4628 1447.6374 1447.6059 1447.7697 1448.7515 1448.7380
#> Apr 2007 1456.6438 1456.6241 1456.8146 1456.7817 1456.9669 1458.0897 1458.0766
#> May 2007 1466.8330 1466.8159 1467.0154 1466.9804 1467.1788 1468.3587 1468.3467
#> Jun 2007 1477.5560 1477.5424 1477.7364 1477.7008 1477.8963 1479.0070 1478.9968
#> Jul 2007 1487.9724 1487.9627 1488.1326 1488.1002 1488.2727 1489.2062 1489.1982
#> Aug 2007 1497.3956 1497.3897 1497.5231 1497.4974 1497.6331 1498.3175 1498.3114
#> Sep 2007 1505.7854 1505.7817 1505.8710 1505.8546 1505.9430 1506.3323 1506.3279
#> Oct 2007 1512.9282 1512.9251 1512.9652 1512.9592 1512.9929 1513.0629 1513.0603
#> Nov 2007 1518.5502 1518.5467 1518.5351 1518.5393 1518.5142 1518.2679 1518.2677
#> Dec 2007 1522.5141 1522.5095 1522.4494 1522.4614 1522.3802 1521.8461 1521.8486
#> Jan 2008 1524.8892 1524.8839 1524.7811 1524.7974 1524.6677 1523.8931 1523.8986
#> Feb 2008 1525.8723 1525.8685 1525.7305 1525.7467 1525.5810 1524.6150 1524.6235
#> Mar 2008 1525.8164 1525.8165 1525.6513 1525.6639 1525.4748 1524.3654 1524.3770
#> Apr 2008 1525.2577 1525.2633 1525.0778 1525.0849 1524.8826 1523.6658 1523.6801
#> May 2008 1524.9268 1524.9407 1524.7409 1524.7405 1524.5349 1523.2350 1523.2518
#> Jun 2008 1525.2378 1525.2621 1525.0560 1525.0477 1524.8487 1523.5313 1523.5500
#> Jul 2008 1526.8400 1526.8741 1526.6697 1526.6552 1526.4681 1525.2234 1525.2432
#> Aug 2008 1530.4876 1530.5285 1530.3310 1530.3129 1530.1371 1529.0229 1529.0429
#> Sep 2008 1536.3561 1536.3962 1536.2138 1536.1957 1536.0283 1535.0298 1535.0486
#> Oct 2008 1544.4640 1544.4932 1544.3343 1544.3201 1544.1566 1543.1947 1543.2109
#> Nov 2008 1554.0368 1554.0450 1553.9147 1553.9088 1553.7433 1552.6978 1552.7106
#> Dec 2008 1564.0565 1564.0355 1563.9388 1563.9433 1563.7742 1562.5153 1562.5243
#> Jan 2009 1573.7392 1573.6852 1573.6239 1573.6386 1573.4685 1571.8868 1571.8918
#> Feb 2009 1582.1766 1582.0876 1582.0540 1582.0798 1581.9100 1579.9636 1579.9658
#> Mar 2009 1588.7531 1588.6330 1588.6197 1588.6541 1588.4911 1586.1935 1586.1940
#> Apr 2009 1592.9482 1592.8090 1592.8113 1592.8470 1592.7030 1590.1124 1590.1119
#> May 2009 1594.4955 1594.3590 1594.3752 1594.4000 1594.2933 1591.4980 1591.4963
#> Jun 2009 1593.5251 1593.4125 1593.4469 1593.4489 1593.3957 1590.5036 1590.5002
#> Jul 2009 1590.2873 1590.2167 1590.2733 1590.2455 1590.2506 1587.3431 1587.3375
#> Aug 2009 1585.1579 1585.1412 1585.2228 1585.1612 1585.2210 1582.3686 1582.3600
#> Sep 2009 1579.0196 1579.0602 1579.1649 1579.0731 1579.1707 1576.4677 1576.4560
#> Oct 2009 1572.3612 1572.4537 1572.5787 1572.4668 1572.5820 1570.1426 1570.1277
#> Nov 2009 1565.8151 1565.9458 1566.0924 1565.9723 1566.0913 1564.0254 1564.0072
#> Dec 2009 1559.8307 1559.9814 1560.1521 1560.0349 1560.1530 1558.5410 1558.5199
#> Jan 2010 1554.8672 1555.0191 1555.2117 1555.1062 1555.2269 1554.1037 1554.0806
#> Feb 2010 1551.1734 1551.3110 1551.5217 1551.4207 1551.5809 1550.9299 1550.9058
#> Mar 2010 1548.7417 1548.8532 1549.0732 1548.9694 1549.1988 1548.9716 1548.9479
#> Apr 2010 1547.4721 1547.5525 1547.7686 1547.6594 1547.9654 1548.0909 1548.0693
#> May 2010 1547.1523 1547.1905 1547.3867 1547.2850 1547.6333 1548.0633 1548.0456
#> Jun 2010 1547.6267 1547.6193 1547.7792 1547.6993 1548.0375 1548.6961 1548.6838
#> Jul 2010 1548.9057 1548.8646 1548.9785 1548.9245 1549.2120 1549.9135 1549.9085
#> Aug 2010 1550.3262 1550.2687 1550.3310 1550.3037 1550.5023 1551.0209 1551.0246
#> Sep 2010 1551.0927 1551.0464 1551.0530 1551.0492 1551.1282 1551.2744 1551.2862
#> Oct 2010 1550.6389 1550.6402 1550.5883 1550.5952 1550.5436 1550.1879 1550.2046
#> Nov 2010 1548.4854 1548.5811 1548.4753 1548.4713 1548.3072 1547.4021 1547.4181
#> Dec 2010 1544.7235 1544.9494 1544.8159 1544.7761 1544.5438 1543.1322 1543.1411
#> Jan 2011 1539.4932 1539.8647 1539.7250 1539.6313 1539.3958 1537.5995 1537.5960
#> Feb 2011 1533.2349 1533.7487 1533.6098 1533.4276 1533.3167 1531.2945 1531.2759
#> Mar 2011 1526.6610 1527.2976 1527.1642 1526.8661 1526.9877 1524.8683 1524.8344
#> Apr 2011 1520.1366 1520.8585 1520.7289 1520.3128 1520.7122 1518.6017 1518.5572
#> May 2011 1514.1196 1514.8773 1514.7456 1514.2344 1514.8897 1512.8435 1512.7944
#> Jun 2011 1508.8059 1509.5380 1509.3904 1508.8338 1509.6499 1507.6788 1507.6305
#> Jul 2011 1504.3858 1505.0308 1504.8503 1504.3146 1505.1487 1503.2547 1503.2120
#> Aug 2011 1501.1596 1501.6638 1501.4399 1500.9941 1501.6917 1499.9107 1499.8759
#> Sep 2011 1499.3209 1499.6492 1499.3752 1499.0843 1499.4957 1497.8589 1497.8336
#> Oct 2011 1498.9758 1499.1202 1498.8023 1498.7026 1498.7318 1497.2514 1497.2347
#> Nov 2011 1500.4797 1500.4930 1500.1494 1500.2406 1499.8703 1498.5364 1498.5251
#> Dec 2011 1503.8318 1503.7834 1503.4883 1503.7333 1503.0343 1501.8168 1501.8065
#> Jan 2012 1508.5132 1508.4670 1508.2843 1508.6288 1507.7528 1506.6092 1506.5953
#> Feb 2012 1513.9005 1513.9068 1513.8568 1514.1994 1513.4208 1512.3002 1512.2805
#> Mar 2012 1519.3167 1519.3980 1519.4713 1519.7289 1519.2671 1518.0993 1518.0754
#> Apr 2012 1524.1983 1524.3455 1524.5075 1524.6341 1524.6140 1523.3542 1523.3342
#> May 2012 1528.2166 1528.3968 1528.5951 1528.5853 1529.0313 1527.6555 1527.6463
#> Jun 2012 1531.2905 1531.4652 1531.6351 1531.5133 1532.3593 1530.8353 1530.8415
#> Jul 2012 1533.0427 1533.1667 1533.2408 1533.0663 1534.1509 1532.5986 1532.6172
#> Aug 2012 1533.4500 1533.4906 1533.4127 1533.2583 1534.3561 1532.9213 1532.9461
#> Sep 2012 1532.8420 1532.7836 1532.5353 1532.4601 1533.3620 1532.0845 1532.1102
#> Oct 2012 1531.6179 1531.4553 1531.0539 1531.1034 1531.6429 1530.4589 1530.4823
#> Nov 2012 1530.1547 1529.9533 1529.4447 1529.6470 1529.7305 1528.4945 1528.5157
#> Dec 2012 1528.8113 1528.6237 1528.1547 1528.5147 1528.1494 1526.6713 1526.6942
#> Jan 2013 1527.9883 1527.8444 1527.5197 1528.0353 1527.3382 1525.4251 1525.4565
#> Feb 2013 1527.7788 1527.6823 1527.5778 1528.3140 1527.4115 1524.9015 1524.9532
#> Mar 2013 1528.1669 1528.0989 1528.2250 1529.1952 1528.2337 1524.9870 1525.0706
#> Apr 2013 1529.0817 1529.0090 1529.2876 1530.3888 1529.6081 1525.6132 1525.7402
#> May 2013 1530.1826 1530.0653 1530.3432 1531.3682 1531.0718 1526.4530 1526.6238
#> Jun 2013 1530.9723 1530.7660 1530.8496 1531.5402 1532.0105 1527.0171 1527.2233
#> Jul 2013 1531.2895 1530.9496 1530.6481 1530.7464 1532.1753 1527.1235 1527.3525
#> Aug 2013 1530.8621 1530.3685 1529.5350 1528.8488 1531.2963 1526.5235 1526.7569
#> Sep 2013 1529.6431 1529.0210 1527.5944 1526.0278 1529.4208 1525.2481 1525.4591
#> Oct 2013 1527.7100 1527.0336 1525.0691 1522.6508 1526.8108 1523.4935 1523.6563
#> Nov 2013 1524.9773 1524.2984 1521.9640 1518.8535 1523.5312 1521.2169 1521.3157
#> Dec 2013 1521.3564 1520.7539 1518.1452 1514.6047 1519.5396 1518.2361 1518.2687
#> Jan 2014 1517.0189 1516.6317 1513.9250 1510.2131 1515.1774 1514.7428 1514.7217
#> Feb 2014 1512.2984 1512.2848 1509.7936 1506.1664 1510.9030 1511.0947 1511.0400
#> Mar 2014 1507.5442 1508.0576 1506.1750 1502.9644 1507.2455 1507.8376 1507.7733
#> Apr 2014 1503.3556 1504.5300 1503.6685 1501.2056 1504.9484 1505.6832 1505.6013
#> May 2014 1500.0594 1501.9865 1502.5231 1501.0879 1504.3174 1504.9050 1504.8132
#> Jun 2014 1497.6687 1500.3860 1502.6020 1502.3758 1505.2398 1505.4336 1505.3701
#> Jul 2014 1496.2218 1499.7201 1503.7651 1504.7968 1507.5747 1507.0762 1507.1011
#> Aug 2014 1495.8962 1500.1144 1505.9991 1508.1968 1511.2578 1509.7164 1509.9044
#> Sep 2014 1496.3987 1501.2366 1508.8399 1512.0140 1515.7421 1512.9542 1513.3769
#> Oct 2014 NaN 1502.7103 1511.8164 1515.7185 1520.4520 1516.3883 1517.0982
#> Nov 2014 NaN NaN 1514.2887 1518.6636 1524.6605 1519.4465 1520.4678
#> Dec 2014 NaN NaN NaN 1520.4027 1527.8041 1521.6716 1522.9975
#> Jan 2015 NaN NaN NaN NaN 1529.5694 1522.7939 1524.3882
#> Feb 2015 NaN NaN NaN NaN NaN 1522.7746 1524.5812
#> Mar 2015 NaN NaN NaN NaN NaN NaN 1523.8857
#> Apr 2015 NaN NaN NaN NaN NaN NaN NaN
#> May 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2015 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2015 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2015 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2015 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 64 Series 65 Series 66 Series 67 Series 68 Series 69 Series 70
#> Apr 1982 482.7141 482.7186 482.7176 482.7163 482.7158 482.7160 482.7174
#> May 1982 483.8288 483.8341 483.8354 483.8335 483.8339 483.8335 483.8399
#> Jun 1982 485.2688 485.2754 485.2796 485.2772 485.2788 485.2776 485.2895
#> Jul 1982 486.2062 486.2118 486.2159 486.2139 486.2155 486.2144 486.2249
#> Aug 1982 487.3694 487.3751 487.3802 487.3783 487.3802 487.3789 487.3909
#> Sep 1982 488.7621 488.7680 488.7744 488.7723 488.7747 488.7730 488.7875
#> Oct 1982 490.3688 490.3749 490.3820 490.3796 490.3823 490.3804 490.3968
#> Nov 1982 492.0665 492.0717 492.0781 492.0756 492.0780 492.0763 492.0918
#> Dec 1982 493.8359 493.8405 493.8459 493.8432 493.8452 493.8437 493.8583
#> Jan 1983 495.5495 495.5531 495.5570 495.5541 495.5555 495.5544 495.5670
#> Feb 1983 497.2679 497.2704 497.2723 497.2695 497.2700 497.2695 497.2790
#> Mar 1983 499.0684 499.0696 499.0694 499.0669 499.0665 499.0666 499.0721
#> Apr 1983 500.9272 500.9270 500.9248 500.9227 500.9216 500.9222 500.9235
#> May 1983 503.0080 503.0065 503.0028 503.0014 502.9997 503.0007 502.9983
#> Jun 1983 505.3768 505.3742 505.3693 505.3687 505.3666 505.3679 505.3618
#> Jul 1983 508.0517 508.0485 508.0429 508.0431 508.0408 508.0423 508.0331
#> Aug 1983 511.0085 511.0057 511.0003 511.0013 510.9991 511.0006 510.9902
#> Sep 1983 514.3014 514.3001 514.2959 514.2972 514.2956 514.2967 514.2874
#> Oct 1983 518.0325 518.0339 518.0318 518.0330 518.0323 518.0328 518.0269
#> Nov 1983 522.2636 522.2685 522.2692 522.2699 522.2703 522.2701 522.2697
#> Dec 1983 526.9144 526.9229 526.9264 526.9264 526.9278 526.9269 526.9325
#> Jan 1984 531.9024 531.9143 531.9206 531.9195 531.9220 531.9203 531.9323
#> Feb 1984 537.0165 537.0311 537.0399 537.0378 537.0413 537.0389 537.0568
#> Mar 1984 542.0189 542.0354 542.0459 542.0431 542.0472 542.0444 542.0667
#> Apr 1984 546.8619 546.8793 546.8911 546.8878 546.8924 546.8893 546.9147
#> May 1984 551.5595 551.5767 551.5893 551.5859 551.5908 551.5874 551.6145
#> Jun 1984 556.0619 556.0776 556.0901 556.0869 556.0918 556.0884 556.1150
#> Jul 1984 560.5375 560.5505 560.5618 560.5591 560.5635 560.5605 560.5840
#> Aug 1984 565.2827 565.2918 565.3004 565.2986 565.3020 565.2997 565.3169
#> Sep 1984 570.3824 570.3866 570.3909 570.3904 570.3922 570.3910 570.3988
#> Oct 1984 576.1123 576.1115 576.1112 576.1120 576.1119 576.1120 576.1096
#> Nov 1984 582.5478 582.5428 582.5379 582.5400 582.5382 582.5395 582.5273
#> Dec 1984 589.6721 589.6639 589.6550 589.6580 589.6546 589.6570 589.6366
#> Jan 1985 597.4941 597.4839 597.4720 597.4756 597.4710 597.4742 597.4478
#> Feb 1985 605.7841 605.7726 605.7584 605.7624 605.7568 605.7606 605.7299
#> Mar 1985 614.1828 614.1706 614.1547 614.1588 614.1526 614.1569 614.1231
#> Apr 1985 622.3868 622.3743 622.3571 622.3611 622.3544 622.3590 622.3232
#> May 1985 629.9964 629.9840 629.9655 629.9695 629.9622 629.9671 629.9298
#> Jun 1985 636.4295 636.4173 636.3980 636.4019 636.3942 636.3994 636.3610
#> Jul 1985 641.3863 641.3747 641.3558 641.3597 641.3522 641.3573 641.3194
#> Aug 1985 644.6385 644.6277 644.6104 644.6145 644.6077 644.6123 644.5764
#> Sep 1985 646.4780 646.4683 646.4546 646.4590 646.4537 646.4574 646.4261
#> Oct 1985 647.2713 647.2633 647.2548 647.2597 647.2566 647.2589 647.2348
#> Nov 1985 647.6788 647.6726 647.6703 647.6757 647.6753 647.6759 647.6603
#> Dec 1985 648.4756 648.4712 648.4755 648.4813 648.4837 648.4826 648.4759
#> Jan 1986 650.1189 650.1163 650.1270 650.1332 650.1383 650.1354 650.1378
#> Feb 1986 652.7577 652.7574 652.7743 652.7803 652.7880 652.7835 652.7955
#> Mar 1986 656.5026 656.5057 656.5289 656.5340 656.5443 656.5381 656.5618
#> Apr 1986 661.3678 661.3759 661.4056 661.4088 661.4216 661.4137 661.4516
#> May 1986 667.1254 667.1389 667.1746 667.1752 667.1902 667.1807 667.2335
#> Jun 1986 673.5056 673.5249 673.5660 673.5635 673.5805 673.5695 673.6374
#> Jul 1986 680.2037 680.2286 680.2738 680.2681 680.2864 680.2743 680.3561
#> Aug 1986 686.6537 686.6830 686.7304 686.7217 686.7406 686.7280 686.8199
#> Sep 1986 692.4892 692.5216 692.5695 692.5583 692.5772 692.5643 692.6632
#> Oct 1986 697.5167 697.5503 697.5968 697.5838 697.6019 697.5894 697.6902
#> Nov 1986 701.3914 701.4238 701.4663 701.4528 701.4691 701.4577 701.5540
#> Dec 1986 704.1857 704.2148 704.2516 704.2386 704.2525 704.2426 704.3292
#> Jan 1987 706.0754 706.0992 706.1280 706.1167 706.1275 706.1197 706.1902
#> Feb 1987 707.3405 707.3577 707.3773 707.3684 707.3757 707.3704 707.4211
#> Mar 1987 708.5515 708.5618 708.5720 708.5658 708.5694 708.5667 708.5964
#> Apr 1987 710.1105 710.1142 710.1152 710.1119 710.1121 710.1118 710.1207
#> May 1987 712.0608 712.0588 712.0524 712.0516 712.0490 712.0507 712.0420
#> Jun 1987 714.6573 714.6515 714.6403 714.6414 714.6371 714.6401 714.6193
#> Jul 1987 718.0348 718.0275 718.0147 718.0168 718.0120 718.0155 717.9896
#> Aug 1987 722.2208 722.2141 722.2030 722.2052 722.2010 722.2040 722.1806
#> Sep 1987 727.2458 727.2413 727.2338 727.2353 727.2324 727.2345 727.2187
#> Oct 1987 732.7392 732.7370 732.7331 732.7337 732.7320 732.7330 732.7256
#> Nov 1987 738.3811 738.3811 738.3802 738.3799 738.3792 738.3794 738.3797
#> Dec 1987 743.6589 743.6605 743.6618 743.6607 743.6606 743.6602 743.6665
#> Jan 1988 748.0289 748.0320 748.0348 748.0328 748.0333 748.0325 748.0433
#> Feb 1988 751.6068 751.6111 751.6150 751.6123 751.6132 751.6121 751.6259
#> Mar 1988 754.6682 754.6731 754.6773 754.6742 754.6755 754.6744 754.6887
#> Apr 1988 757.3400 757.3446 757.3483 757.3454 757.3469 757.3459 757.3577
#> May 1988 759.7436 759.7473 759.7504 759.7482 759.7498 759.7491 759.7567
#> Jun 1988 762.1133 762.1158 762.1183 762.1170 762.1188 762.1182 762.1216
#> Jul 1988 764.4639 764.4654 764.4673 764.4669 764.4687 764.4684 764.4681
#> Aug 1988 766.8703 766.8711 766.8730 766.8732 766.8749 766.8745 766.8731
#> Sep 1988 769.2613 769.2616 769.2632 769.2638 769.2651 769.2647 769.2635
#> Oct 1988 771.5446 771.5443 771.5453 771.5460 771.5465 771.5462 771.5458
#> Nov 1988 773.9547 773.9542 773.9546 773.9551 773.9548 773.9546 773.9559
#> Dec 1988 776.6186 776.6182 776.6179 776.6180 776.6169 776.6168 776.6197
#> Jan 1989 779.5744 779.5743 779.5735 779.5730 779.5715 779.5716 779.5756
#> Feb 1989 782.9520 782.9523 782.9512 782.9503 782.9487 782.9489 782.9529
#> Mar 1989 786.7556 786.7558 786.7538 786.7528 786.7514 786.7519 786.7531
#> Apr 1989 790.6451 790.6448 790.6419 790.6410 790.6400 790.6408 790.6375
#> May 1989 794.6972 794.6966 794.6929 794.6922 794.6917 794.6929 794.6851
#> Jun 1989 799.0273 799.0263 799.0220 799.0217 799.0217 799.0230 799.0111
#> Jul 1989 803.3438 803.3415 803.3361 803.3365 803.3366 803.3383 803.3212
#> Aug 1989 807.5681 807.5640 807.5575 807.5592 807.5588 807.5609 807.5390
#> Sep 1989 811.3759 811.3710 811.3655 811.3684 811.3678 811.3696 811.3473
#> Oct 1989 814.4709 814.4675 814.4668 814.4702 814.4707 814.4712 814.4572
#> Nov 1989 816.7933 816.7930 816.8003 816.8036 816.8063 816.8046 816.8063
#> Dec 1989 818.2429 818.2461 818.2622 818.2652 818.2707 818.2664 818.2867
#> Jan 1990 818.9720 818.9783 819.0026 819.0053 819.0138 819.0069 819.0456
#> Feb 1990 819.3293 819.3373 819.3675 819.3701 819.3812 819.3722 819.4252
#> Mar 1990 819.3454 819.3530 819.3856 819.3887 819.4015 819.3913 819.4516
#> Apr 1990 819.2075 819.2130 819.2448 819.2488 819.2623 819.2518 819.3126
#> May 1990 819.0798 819.0823 819.1103 819.1151 819.1283 819.1184 819.1739
#> Jun 1990 819.0007 818.9989 819.0199 819.0256 819.0370 819.0287 819.0726
#> Jul 1990 818.8548 818.8484 818.8604 818.8669 818.8752 818.8692 818.8979
#> Aug 1990 818.5963 818.5858 818.5884 818.5952 818.6001 818.5967 818.6091
#> Sep 1990 818.2740 818.2603 818.2539 818.2607 818.2621 818.2613 818.2573
#> Oct 1990 818.3699 818.3544 818.3411 818.3474 818.3455 818.3470 818.3298
#> Nov 1990 819.1136 819.0985 819.0817 819.0871 819.0821 819.0851 819.0620
#> Dec 1990 820.5166 820.5051 820.4901 820.4937 820.4865 820.4895 820.4729
#> Jan 1991 822.7845 822.7799 822.7727 822.7736 822.7655 822.7669 822.7710
#> Feb 1991 825.8025 825.8072 825.8125 825.8101 825.8017 825.8002 825.8369
#> Mar 1991 829.2123 829.2282 829.2493 829.2429 829.2353 829.2299 829.3082
#> Apr 1991 833.0047 833.0321 833.0698 833.0593 833.0532 833.0435 833.1665
#> May 1991 837.1435 837.1807 837.2330 837.2190 837.2149 837.2013 837.3639
#> Jun 1991 841.2093 841.2534 841.3167 841.3004 841.2986 841.2820 841.4736
#> Jul 1991 845.1945 845.2425 845.3127 845.2952 845.2959 845.2774 845.4855
#> Aug 1991 849.0925 849.1420 849.2153 849.1976 849.2007 849.1814 849.3947
#> Sep 1991 852.7330 852.7816 852.8541 852.8369 852.8422 852.8229 853.0309
#> Oct 1991 856.0074 856.0519 856.1187 856.1030 856.1095 856.0916 856.2814
#> Nov 1991 858.5915 858.6285 858.6844 858.6712 858.6778 858.6628 858.8212
#> Dec 1991 860.4015 860.4293 860.4711 860.4610 860.4670 860.4556 860.5742
#> Jan 1992 861.7918 861.8094 861.8355 861.8288 861.8336 861.8264 861.9011
#> Feb 1992 862.9503 862.9582 862.9692 862.9658 862.9686 862.9655 862.9985
#> Mar 1992 864.2013 864.2013 864.2001 864.1995 864.2000 864.2002 864.1993
#> Apr 1992 865.8213 865.8158 865.8059 865.8072 865.8057 865.8084 865.7835
#> May 1992 867.8769 867.8678 867.8524 867.8551 867.8521 867.8564 867.8164
#> Jun 1992 870.2264 870.2162 870.1992 870.2024 870.1995 870.2042 870.1589
#> Jul 1992 872.6504 872.6414 872.6265 872.6294 872.6284 872.6325 872.5902
#> Aug 1992 875.2760 875.2697 875.2595 875.2617 875.2636 875.2665 875.2336
#> Sep 1992 878.3595 878.3560 878.3509 878.3523 878.3577 878.3592 878.3364
#> Oct 1992 881.6780 881.6773 881.6769 881.6775 881.6860 881.6861 881.6737
#> Nov 1992 884.7837 884.7856 884.7896 884.7893 884.7997 884.7986 884.7968
#> Dec 1992 887.4838 887.4877 887.4947 887.4937 887.5038 887.5018 887.5094
#> Jan 1993 889.5352 889.5394 889.5468 889.5455 889.5524 889.5503 889.5631
#> Feb 1993 890.7597 890.7630 890.7685 890.7674 890.7677 890.7662 890.7814
#> Mar 1993 891.1854 891.1870 891.1893 891.1885 891.1805 891.1799 891.1957
#> Apr 1993 890.8930 890.8921 890.8903 890.8902 890.8735 890.8740 890.8875
#> May 1993 889.9515 889.9480 889.9421 889.9429 889.9188 889.9204 889.9300
#> Jun 1993 888.8886 888.8832 888.8742 888.8757 888.8468 888.8493 888.8557
#> Jul 1993 888.1695 888.1630 888.1523 888.1542 888.1238 888.1267 888.1304
#> Aug 1993 888.0831 888.0754 888.0628 888.0649 888.0371 888.0405 888.0361
#> Sep 1993 888.9095 888.9008 888.8866 888.8890 888.8675 888.8713 888.8538
#> Oct 1993 890.6016 890.5932 890.5792 890.5815 890.5684 890.5721 890.5439
#> Nov 1993 893.1782 893.1727 893.1632 893.1644 893.1598 893.1623 893.1358
#> Dec 1993 896.9451 896.9457 896.9453 896.9443 896.9463 896.9464 896.9391
#> Jan 1994 901.7144 901.7238 901.7363 901.7324 901.7372 901.7339 901.7644
#> Feb 1994 907.1774 907.1974 907.2256 907.2181 907.2230 907.2155 907.2986
#> Mar 1994 913.0857 913.1164 913.1603 913.1493 913.1511 913.1395 913.2823
#> Apr 1994 918.8482 918.8881 918.9456 918.9317 918.9262 918.9110 919.1131
#> May 1994 923.8861 923.9334 924.0020 923.9860 923.9696 923.9515 924.2080
#> Jun 1994 928.0674 928.1194 928.1955 928.1783 928.1483 928.1282 928.4277
#> Jul 1994 931.5834 931.6364 931.7149 931.6978 931.6530 931.6322 931.9561
#> Aug 1994 934.5421 934.5930 934.6694 934.6534 934.5940 934.5737 934.9032
#> Sep 1994 936.6817 936.7283 936.7990 936.7848 936.7163 936.6975 937.0109
#> Oct 1994 938.2010 938.2418 938.3042 938.2921 938.2188 938.2022 938.4826
#> Nov 1994 939.6242 939.6572 939.7085 939.6989 939.6237 939.6101 939.8434
#> Dec 1994 941.2076 941.2307 941.2674 941.2610 941.1838 941.1741 941.3501
#> Jan 1995 942.9026 942.9146 942.9350 942.9321 942.8511 942.8458 942.9633
#> Feb 1995 944.6847 944.6857 944.6893 944.6900 944.5976 944.5968 944.6687
#> Mar 1995 946.4751 946.4652 946.4524 946.4568 946.3478 946.3514 946.3910
#> Apr 1995 948.3608 948.3417 948.3144 948.3220 948.1970 948.2044 948.2230
#> May 1995 950.5223 950.4959 950.4570 950.4669 950.3322 950.3427 950.3452
#> Jun 1995 952.9234 952.8910 952.8424 952.8544 952.7204 952.7333 952.7151
#> Jul 1995 955.3831 955.3461 955.2902 955.3037 955.1836 955.1984 955.1496
#> Aug 1995 957.8809 957.8408 957.7800 957.7945 957.6989 957.7150 957.6274
#> Sep 1995 960.1734 960.1327 960.0711 960.0857 960.0158 960.0321 959.9174
#> Oct 1995 962.1666 962.1279 962.0698 962.0836 962.0416 962.0569 961.9243
#> Nov 1995 964.0244 963.9902 963.9393 963.9515 963.9404 963.9540 963.8075
#> Dec 1995 965.7117 965.6846 965.6445 965.6541 965.6762 965.6870 965.5289
#> Jan 1996 967.0419 967.0246 966.9992 967.0051 967.0604 967.0673 966.9017
#> Feb 1996 968.0055 967.9999 967.9915 967.9929 968.0701 968.0727 967.9153
#> Mar 1996 968.3466 968.3537 968.3634 968.3599 968.4450 968.4428 968.3086
#> Apr 1996 968.0651 968.0846 968.1124 968.1041 968.1876 968.1807 968.0773
#> May 1996 967.6214 967.6522 967.6961 967.6836 967.7620 967.7508 967.6762
#> Jun 1996 967.2336 967.2730 967.3290 967.3131 967.3885 967.3742 967.3174
#> Jul 1996 966.9718 967.0172 967.0813 967.0627 967.1409 967.1245 967.0730
#> Aug 1996 966.9221 966.9703 967.0381 967.0179 967.1048 967.0875 967.0299
#> Sep 1996 967.4374 967.4851 967.5518 967.5311 967.6345 967.6176 967.5382
#> Oct 1996 968.7603 968.8038 968.8642 968.8446 968.9660 968.9508 968.8405
#> Nov 1996 970.7423 970.7780 970.8273 970.8103 970.9470 970.9347 970.7902
#> Dec 1996 973.1113 973.1375 973.1732 973.1600 973.3044 973.2955 973.1257
#> Jan 1997 975.8903 975.9068 975.9286 975.9198 976.0598 976.0542 975.8776
#> Feb 1997 979.0519 979.0594 979.0685 979.0643 979.1967 979.1940 979.0159
#> Mar 1997 982.5068 982.5075 982.5072 982.5069 982.6306 982.6298 982.4568
#> Apr 1997 986.1297 986.1268 986.1213 986.1237 986.2294 986.2293 986.0825
#> May 1997 989.5026 989.4986 989.4917 989.4958 989.5655 989.5654 989.4761
#> Jun 1997 992.3698 992.3673 992.3627 992.3673 992.3785 992.3774 992.3853
#> Jul 1997 994.6297 994.6305 994.6308 994.6347 994.5648 994.5622 994.7038
#> Aug 1997 996.2221 996.2269 996.2331 996.2357 996.0737 996.0693 996.3632
#> Sep 1997 997.1661 997.1740 997.1846 997.1860 996.9314 996.9255 997.3692
#> Oct 1997 997.7696 997.7783 997.7895 997.7900 997.4523 997.4462 998.0141
#> Nov 1997 998.1440 998.1504 998.1580 998.1580 997.7460 997.7412 998.4065
#> Dec 1997 998.5120 998.5131 998.5126 998.5125 998.0356 998.0337 998.7686
#> Jan 1998 999.2658 999.2581 999.2452 999.2458 998.7141 998.7168 999.4923
#> Feb 1998 1000.5992 1000.5801 1000.5515 1000.5536 999.9956 1000.0042 1000.7706
#> Mar 1998 1002.7548 1002.7235 1002.6785 1002.6826 1002.1319 1002.1467 1002.8544
#> Apr 1998 1005.8849 1005.8422 1005.7820 1005.7883 1005.2651 1005.2858 1005.9092
#> May 1998 1009.8163 1009.7643 1009.6916 1009.6997 1009.2064 1009.2319 1009.7742
#> Jun 1998 1014.0784 1014.0213 1013.9418 1013.9507 1013.4742 1013.5026 1013.9953
#> Jul 1998 1018.4262 1018.3690 1018.2892 1018.2978 1017.8142 1017.8430 1018.3346
#> Aug 1998 1022.3334 1022.2810 1022.2077 1022.2145 1021.6971 1021.7239 1022.2663
#> Sep 1998 1025.6728 1025.6298 1025.5693 1025.5733 1025.0050 1025.0274 1025.6594
#> Oct 1998 1028.3057 1028.2752 1028.2315 1028.2322 1027.6080 1027.6244 1028.3655
#> Nov 1998 1030.4559 1030.4395 1030.4146 1030.4122 1029.7450 1029.7542 1030.5964
#> Dec 1998 1032.5001 1032.4976 1032.4911 1032.4862 1031.8057 1031.8076 1032.7132
#> Jan 1999 1034.9601 1034.9684 1034.9761 1034.9701 1034.3179 1034.3137 1035.2189
#> Feb 1999 1038.0908 1038.1064 1038.1235 1038.1175 1037.5290 1037.5204 1038.3683
#> Mar 1999 1042.1365 1042.1551 1042.1760 1042.1712 1041.6666 1041.6557 1042.4090
#> Apr 1999 1047.0637 1047.0810 1047.0996 1047.0970 1046.6943 1046.6836 1047.3057
#> May 1999 1052.5078 1052.5210 1052.5339 1052.5338 1052.2466 1052.2375 1052.7008
#> Jun 1999 1058.2885 1058.2961 1058.3019 1058.3044 1058.1391 1058.1324 1058.4211
#> Jul 1999 1063.9884 1063.9903 1063.9896 1063.9943 1063.9494 1063.9454 1064.0595
#> Aug 1999 1069.1784 1069.1756 1069.1697 1069.1762 1069.2360 1069.2344 1069.1949
#> Sep 1999 1073.4827 1073.4757 1073.4650 1073.4727 1073.6020 1073.6026 1073.4521
#> Oct 1999 1076.5856 1076.5754 1076.5614 1076.5692 1076.7281 1076.7305 1076.5197
#> Nov 1999 1078.4996 1078.4882 1078.4730 1078.4792 1078.6343 1078.6375 1078.4103
#> Dec 1999 1079.5684 1079.5574 1079.5424 1079.5457 1079.6768 1079.6799 1079.4615
#> Jan 2000 1079.7621 1079.7530 1079.7395 1079.7385 1079.8423 1079.8442 1079.6386
#> Feb 2000 1079.3007 1079.2942 1079.2821 1079.2765 1079.3544 1079.3542 1079.1592
#> Mar 2000 1078.4677 1078.4636 1078.4519 1078.4419 1078.4860 1078.4831 1078.3088
#> Apr 2000 1077.5993 1077.5966 1077.5832 1077.5696 1077.5754 1077.5700 1077.4205
#> May 2000 1077.2214 1077.2194 1077.2027 1077.1867 1077.1582 1077.1504 1077.0218
#> Jun 2000 1077.5595 1077.5568 1077.5353 1077.5183 1077.4692 1077.4596 1077.3368
#> Jul 2000 1078.8878 1078.8824 1078.8542 1078.8379 1078.7854 1078.7754 1078.6370
#> Aug 2000 1081.1907 1081.1810 1081.1451 1081.1308 1081.0962 1081.0873 1080.9096
#> Sep 2000 1084.5698 1084.5553 1084.5117 1084.5006 1084.5081 1084.5012 1084.2609
#> Oct 2000 1088.8646 1088.8463 1088.7977 1088.7901 1088.8596 1088.8545 1088.5413
#> Nov 2000 1093.8054 1093.7853 1093.7355 1093.7314 1093.8736 1093.8699 1093.4866
#> Dec 2000 1098.9243 1098.9046 1098.8573 1098.8562 1099.0691 1099.0658 1098.6302
#> Jan 2001 1103.7523 1103.7359 1103.6956 1103.6966 1103.9636 1103.9596 1103.5076
#> Feb 2001 1108.2252 1108.2148 1108.1854 1108.1870 1108.4827 1108.4769 1108.0506
#> Mar 2001 1112.5508 1112.5476 1112.5307 1112.5317 1112.8378 1112.8295 1112.4509
#> Apr 2001 1116.9554 1116.9601 1116.9567 1116.9561 1117.2586 1117.2474 1116.9278
#> May 2001 1121.6681 1121.6800 1121.6892 1121.6866 1121.9738 1121.9598 1121.7016
#> Jun 2001 1126.9376 1126.9542 1126.9718 1126.9675 1127.2305 1127.2148 1127.0092
#> Jul 2001 1132.8492 1132.8678 1132.8890 1132.8838 1133.1182 1133.1022 1132.9354
#> Aug 2001 1139.5317 1139.5491 1139.5692 1139.5641 1139.7671 1139.7522 1139.6071
#> Sep 2001 1146.9002 1146.9143 1146.9300 1146.9254 1147.0981 1147.0854 1146.9469
#> Oct 2001 1155.0053 1155.0149 1155.0246 1155.0208 1155.1661 1155.1564 1155.0136
#> Nov 2001 1163.7576 1163.7620 1163.7651 1163.7622 1163.8826 1163.8764 1163.7246
#> Dec 2001 1172.6637 1172.6635 1172.6612 1172.6591 1172.7554 1172.7523 1172.5969
#> Jan 2002 1181.2298 1181.2268 1181.2217 1181.2201 1181.2903 1181.2896 1181.1457
#> Feb 2002 1189.3455 1189.3410 1189.3354 1189.3342 1189.3735 1189.3743 1189.2604
#> Mar 2002 1196.8813 1196.8771 1196.8736 1196.8726 1196.8805 1196.8819 1196.8105
#> Apr 2002 1203.7428 1203.7410 1203.7425 1203.7411 1203.7195 1203.7204 1203.7014
#> May 2002 1209.9714 1209.9733 1209.9812 1209.9792 1209.9353 1209.9351 1209.9670
#> Jun 2002 1215.6999 1215.7055 1215.7196 1215.7168 1215.6569 1215.6558 1215.7308
#> Jul 2002 1221.4085 1221.4169 1221.4353 1221.4319 1221.3624 1221.3605 1221.4653
#> Aug 2002 1227.4262 1227.4368 1227.4580 1227.4542 1227.3869 1227.3842 1227.4997
#> Sep 2002 1233.9689 1233.9810 1234.0038 1233.9997 1233.9450 1233.9414 1234.0501
#> Oct 2002 1240.8254 1240.8375 1240.8594 1240.8554 1240.8164 1240.8122 1240.9015
#> Nov 2002 1247.4880 1247.4968 1247.5130 1247.5103 1247.4817 1247.4783 1247.5394
#> Dec 2002 1253.6113 1253.6135 1253.6198 1253.6191 1253.5889 1253.5878 1253.6215
#> Jan 2003 1259.5600 1259.5529 1259.5461 1259.5479 1259.5024 1259.5051 1259.5176
#> Feb 2003 1265.6581 1265.6409 1265.6204 1265.6247 1265.5549 1265.5622 1265.5613
#> Mar 2003 1272.0809 1272.0552 1272.0239 1272.0297 1271.9345 1271.9460 1271.9411
#> Apr 2003 1278.9373 1278.9063 1278.8686 1278.8744 1278.7582 1278.7730 1278.7720
#> May 2003 1286.0650 1286.0321 1285.9925 1285.9969 1285.8671 1285.8840 1285.8927
#> Jun 2003 1293.1062 1293.0757 1293.0398 1293.0416 1292.9094 1292.9264 1292.9495
#> Jul 2003 1299.7214 1299.6965 1299.6686 1299.6675 1299.5448 1299.5603 1299.5974
#> Aug 2003 1305.8415 1305.8237 1305.8058 1305.8023 1305.6972 1305.7101 1305.7589
#> Sep 2003 1311.6091 1311.5993 1311.5927 1311.5873 1311.5056 1311.5149 1311.5727
#> Oct 2003 1317.1301 1317.1290 1317.1342 1317.1279 1317.0738 1317.0787 1317.1423
#> Nov 2003 1322.4757 1322.4835 1322.5008 1322.4941 1322.4686 1322.4686 1322.5366
#> Dec 2003 1328.0886 1328.1043 1328.1325 1328.1256 1328.1264 1328.1217 1328.1914
#> Jan 2004 1334.4048 1334.4255 1334.4601 1334.4537 1334.4742 1334.4660 1334.5311
#> Feb 2004 1341.2206 1341.2430 1341.2790 1341.2731 1341.3040 1341.2942 1341.3498
#> Mar 2004 1348.1188 1348.1395 1348.1719 1348.1663 1348.1983 1348.1886 1348.2312
#> Apr 2004 1354.7362 1354.7517 1354.7755 1354.7704 1354.7950 1354.7875 1354.8126
#> May 2004 1361.3044 1361.3118 1361.3230 1361.3188 1361.3298 1361.3259 1361.3300
#> Jun 2004 1368.1829 1368.1812 1368.1780 1368.1748 1368.1708 1368.1713 1368.1531
#> Jul 2004 1375.3779 1375.3693 1375.3542 1375.3517 1375.3369 1375.3407 1375.3056
#> Aug 2004 1382.6937 1382.6813 1382.6585 1382.6571 1382.6367 1382.6423 1382.5990
#> Sep 2004 1389.3774 1389.3625 1389.3336 1389.3343 1389.3088 1389.3156 1389.2693
#> Oct 2004 1394.7079 1394.6897 1394.6536 1394.6578 1394.6266 1394.6350 1394.5841
#> Nov 2004 1398.2340 1398.2119 1398.1683 1398.1764 1398.1397 1398.1502 1398.0925
#> Dec 2004 1400.0194 1399.9935 1399.9430 1399.9544 1399.9136 1399.9266 1399.8597
#> Jan 2005 1400.2976 1400.2685 1400.2130 1400.2263 1400.1844 1400.2001 1400.1216
#> Feb 2005 1399.3535 1399.3222 1399.2647 1399.2779 1399.2381 1399.2564 1399.1664
#> Mar 2005 1397.4049 1397.3725 1397.3156 1397.3264 1397.2914 1397.3121 1397.2104
#> Apr 2005 1394.6381 1394.6049 1394.5495 1394.5565 1394.5273 1394.5504 1394.4362
#> May 2005 1391.0187 1390.9858 1390.9344 1390.9367 1390.9136 1390.9381 1390.8163
#> Jun 2005 1387.1090 1387.0778 1387.0318 1387.0289 1387.0112 1387.0359 1386.9138
#> Jul 2005 1383.4928 1383.4623 1383.4165 1383.4112 1383.3957 1383.4200 1383.3005
#> Aug 2005 1380.6241 1380.5932 1380.5423 1380.5395 1380.5227 1380.5457 1380.4317
#> Sep 2005 1378.8403 1378.8082 1378.7493 1378.7535 1378.7347 1378.7553 1378.6481
#> Oct 2005 1378.6035 1378.5699 1378.5031 1378.5166 1378.4963 1378.5141 1378.4134
#> Nov 2005 1380.4613 1380.4264 1380.3547 1380.3776 1380.3569 1380.3716 1380.2770
#> Dec 2005 1384.2411 1384.2054 1384.1334 1384.1644 1384.1452 1384.1572 1384.0669
#> Jan 2006 1389.1139 1389.0794 1389.0144 1389.0507 1389.0357 1389.0449 1388.9603
#> Feb 2006 1394.3858 1394.3546 1394.3043 1394.3421 1394.3326 1394.3392 1394.2635
#> Mar 2006 1399.7226 1399.6963 1399.6656 1399.7014 1399.6979 1399.7024 1399.6369
#> Apr 2006 1404.8642 1404.8441 1404.8351 1404.8670 1404.8696 1404.8722 1404.8188
#> May 2006 1409.8175 1409.8037 1409.8124 1409.8404 1409.8486 1409.8495 1409.8088
#> Jun 2006 1414.3285 1414.3211 1414.3397 1414.3640 1414.3775 1414.3765 1414.3503
#> Jul 2006 1418.0006 1418.0000 1418.0174 1418.0405 1418.0584 1418.0548 1418.0488
#> Aug 2006 1420.8771 1420.8825 1420.8908 1420.9181 1420.9397 1420.9325 1420.9485
#> Sep 2006 1422.9073 1422.9182 1422.9174 1422.9513 1422.9772 1422.9654 1423.0040
#> Oct 2006 1424.5885 1424.6069 1424.6068 1424.6455 1424.6772 1424.6596 1424.7259
#> Nov 2006 1426.6969 1426.7251 1426.7407 1426.7778 1426.8169 1426.7935 1426.8912
#> Dec 2006 1429.8877 1429.9267 1429.9730 1430.0000 1430.0468 1430.0185 1430.1465
#> Jan 2007 1434.5631 1434.6139 1434.7041 1434.7116 1434.7656 1434.7341 1434.8905
#> Feb 2007 1440.8910 1440.9534 1441.0953 1441.0746 1441.1319 1441.0996 1441.2806
#> Mar 2007 1448.7188 1448.7913 1448.9842 1448.9305 1448.9866 1448.9559 1449.1555
#> Apr 2007 1458.0508 1458.1313 1458.3661 1458.2807 1458.3323 1458.3048 1458.5175
#> May 2007 1468.3157 1468.4013 1468.6597 1468.5547 1468.5972 1468.5734 1468.7928
#> Jun 2007 1478.9643 1479.0487 1479.2997 1479.1904 1479.2199 1479.2010 1479.4137
#> Jul 2007 1489.1687 1489.2438 1489.4485 1489.3530 1489.3668 1489.3536 1489.5420
#> Aug 2007 1498.2889 1498.3495 1498.4819 1498.4078 1498.4054 1498.3990 1498.5526
#> Sep 2007 1506.3145 1506.3570 1506.4062 1506.3583 1506.3446 1506.3443 1506.4556
#> Oct 2007 1513.0573 1513.0787 1513.0481 1513.0323 1513.0162 1513.0196 1513.0818
#> Nov 2007 1518.2751 1518.2730 1518.1783 1518.2019 1518.1945 1518.1975 1518.2044
#> Dec 2007 1521.8652 1521.8396 1521.7064 1521.7750 1521.7867 1521.7849 1521.7357
#> Jan 2008 1523.9223 1523.8745 1523.7315 1523.8480 1523.8850 1523.8748 1523.7714
#> Feb 2008 1524.6513 1524.5837 1524.4563 1524.6184 1524.6789 1524.6590 1524.5064
#> Mar 2008 1524.4063 1524.3222 1524.2264 1524.4307 1524.5091 1524.4796 1524.2852
#> Apr 2008 1523.7096 1523.6128 1523.5510 1523.7925 1523.8803 1523.8429 1523.6153
#> May 2008 1523.2815 1523.1763 1523.1371 1523.4178 1523.5010 1523.4585 1523.2085
#> Jun 2008 1523.5807 1523.4722 1523.4450 1523.7715 1523.8388 1523.7920 1523.5326
#> Jul 2008 1525.2749 1525.1688 1525.1620 1525.5229 1525.5737 1525.5237 1525.2671
#> Aug 2008 1529.0759 1528.9761 1528.9883 1529.3644 1529.4047 1529.3535 1529.1095
#> Sep 2008 1535.0810 1534.9914 1534.9942 1535.3546 1535.3919 1535.3437 1535.1279
#> Oct 2008 1543.2386 1543.1620 1543.1034 1543.4123 1543.4526 1543.4129 1543.2422
#> Nov 2008 1552.7280 1552.6652 1552.4813 1552.7063 1552.7509 1552.7257 1552.6121
#> Dec 2008 1562.5255 1562.4766 1562.1098 1562.2271 1562.2727 1562.2669 1562.2205
#> Jan 2009 1571.8724 1571.8365 1571.2478 1571.2474 1571.2858 1571.3034 1571.3283
#> Feb 2009 1579.9244 1579.8975 1579.0708 1578.9667 1578.9954 1579.0364 1579.1220
#> Mar 2009 1586.1317 1586.1110 1585.0632 1584.8832 1584.8957 1584.9585 1585.0928
#> Apr 2009 1590.0327 1590.0167 1588.7960 1588.5746 1588.5552 1588.6374 1588.8103
#> May 2009 1591.4091 1591.3987 1590.0751 1589.8577 1589.7773 1589.8760 1590.0820
#> Jun 2009 1590.4121 1590.4102 1589.0663 1588.8808 1588.7165 1588.8281 1589.0682
#> Jul 2009 1587.2512 1587.2564 1585.9573 1585.8187 1585.5574 1585.6762 1585.9532
#> Aug 2009 1582.2803 1582.2899 1581.1111 1581.0295 1580.6778 1580.7953 1581.1060
#> Sep 2009 1576.3876 1576.3985 1575.4138 1575.3804 1574.9711 1575.0782 1575.4095
#> Oct 2009 1570.0733 1570.0846 1569.3531 1569.3387 1568.9139 1569.0051 1569.3397
#> Nov 2009 1563.9662 1563.9806 1563.5365 1563.5004 1563.1006 1563.1742 1563.4992
#> Dec 2009 1558.4888 1558.5109 1558.3540 1558.2566 1557.9113 1557.9696 1558.2759
#> Jan 2010 1554.0551 1554.0884 1554.1816 1553.9962 1553.7177 1553.7664 1554.0455
#> Feb 2010 1550.8792 1550.9271 1551.2051 1550.9255 1550.7061 1550.7518 1551.0039
#> Mar 2010 1548.9161 1548.9794 1549.3629 1549.0101 1548.8307 1548.8799 1549.1052
#> Apr 2010 1548.0331 1548.1093 1548.5207 1548.1405 1547.9745 1548.0309 1548.2274
#> May 2010 1548.0025 1548.0835 1548.4674 1548.0728 1547.9235 1547.9861 1548.1445
#> Jun 2010 1548.6356 1548.7121 1549.0346 1548.6502 1548.5234 1548.5873 1548.6994
#> Jul 2010 1549.8578 1549.9152 1550.1178 1549.8019 1549.6856 1549.7436 1549.8097
#> Aug 2010 1550.9748 1551.0029 1551.0150 1550.8627 1550.7281 1550.7683 1550.7984
#> Sep 2010 1551.2485 1551.2484 1551.0673 1551.1439 1550.9863 1550.9974 1551.0030
#> Oct 2010 1550.1997 1550.1802 1549.8574 1550.2239 1550.0316 1550.0078 1550.0021
#> Nov 2010 1547.4706 1547.4463 1547.0700 1547.7792 1547.5278 1547.4701 1547.4722
#> Dec 2010 1543.2734 1543.2593 1542.9305 1544.0150 1543.6716 1543.5889 1543.6166
#> Jan 2011 1537.8229 1537.8312 1537.6432 1539.1059 1538.6384 1538.5445 1538.6097
#> Feb 2011 1531.6015 1531.6414 1531.6637 1533.4699 1532.8483 1532.7604 1532.8713
#> Mar 2011 1525.2503 1525.3266 1525.5996 1527.6642 1526.8603 1526.8041 1526.9661
#> Apr 2011 1519.0429 1519.1518 1519.6604 1521.8755 1520.8833 1520.8761 1521.0861
#> May 2011 1513.3304 1513.4592 1514.1308 1516.3901 1515.2295 1515.2732 1515.5222
#> Jun 2011 1508.1836 1508.3169 1509.0343 1511.2189 1509.9544 1510.0357 1510.3015
#> Jul 2011 1503.7397 1503.8536 1504.5159 1506.5091 1505.2481 1505.3422 1505.5920
#> Aug 2011 1500.3380 1500.4125 1500.9493 1502.6420 1501.5172 1501.5988 1501.8004
#> Sep 2011 1498.1926 1498.2148 1498.5818 1499.8438 1499.0402 1499.0815 1499.1977
#> Oct 2011 1497.4644 1497.4275 1497.5694 1498.3589 1497.9917 1497.9779 1497.9905
#> Nov 2011 1498.6147 1498.5172 1498.3666 1498.7534 1498.8291 1498.7514 1498.6864
#> Dec 2011 1501.7616 1501.6059 1501.0981 1501.2453 1501.6630 1501.5198 1501.4161
#> Jan 2012 1506.4352 1506.2292 1505.3248 1505.4431 1506.0232 1505.8223 1505.7258
#> Feb 2012 1512.0457 1511.8038 1510.5134 1510.7987 1511.3359 1511.0937 1511.0489
#> Mar 2012 1517.8169 1517.5572 1515.9306 1516.5197 1516.8268 1516.5689 1516.5977
#> Apr 2012 1523.0889 1522.8218 1520.9234 1521.8789 1521.8159 1521.5652 1521.6703
#> May 2012 1527.4613 1527.1873 1525.0802 1526.4035 1525.8935 1525.6646 1525.8303
#> Jun 2012 1530.7369 1530.4640 1528.2014 1529.8763 1528.8989 1528.6956 1528.8892
#> Jul 2012 1532.5957 1532.3498 1530.0233 1531.9636 1530.5978 1530.4158 1530.5906
#> Aug 2012 1532.9785 1532.7759 1530.5156 1532.5713 1530.9863 1530.8209 1530.9301
#> Sep 2012 1532.1310 1531.9573 1529.9154 1531.9035 1530.3470 1530.1860 1530.1717
#> Oct 2012 1530.4006 1530.2094 1528.4530 1530.2150 1528.9124 1528.7668 1528.6013
#> Nov 2012 1528.2375 1527.9623 1526.4746 1527.8786 1527.0195 1526.8965 1526.6437
#> Dec 2012 1526.1448 1525.7158 1524.4091 1525.3667 1525.0766 1524.9768 1524.7147
#> Jan 2013 1524.5997 1523.9613 1522.7084 1523.1842 1523.5007 1523.4237 1523.2205
#> Feb 2013 1523.8047 1522.9298 1521.5942 1521.6125 1522.4764 1522.4198 1522.3278
#> Mar 2013 1523.7017 1522.6013 1521.0919 1520.7082 1521.9854 1521.9615 1521.9951
#> Apr 2013 1524.2633 1522.9811 1521.2476 1520.5650 1522.0768 1522.0782 1522.2208
#> May 2013 1525.2271 1523.8337 1521.8849 1521.0282 1522.5952 1522.5955 1522.7980
#> Jun 2013 1526.0565 1524.6622 1522.5714 1521.6399 1523.1365 1523.0967 1523.2816
#> Jul 2013 1526.4944 1525.1891 1523.0030 1522.0634 1523.4395 1523.3172 1523.3968
#> Aug 2013 1526.2267 1525.0827 1522.8852 1522.0243 1523.3039 1523.0628 1522.9558
#> Sep 2013 1525.2212 1524.2856 1522.0548 1521.4858 1522.5931 1522.2351 1521.9596
#> Oct 2013 1523.6252 1522.9214 1520.7030 1520.5543 1521.4335 1521.0217 1520.6305
#> Nov 2013 1521.3724 1520.9033 1518.9141 1519.0923 1519.8534 1519.4368 1519.0637
#> Dec 2013 1518.2857 1518.0364 1516.6336 1516.8290 1517.7426 1517.3502 1517.0510
#> Jan 2014 1514.5932 1514.5323 1514.1250 1513.8910 1515.3097 1514.9544 1514.7018
#> Feb 2014 1510.6883 1510.7628 1511.7017 1510.5698 1512.8312 1512.5071 1512.2178
#> Mar 2014 1507.1607 1507.2942 1509.7194 1507.3800 1510.7175 1510.3426 1509.9116
#> Apr 2014 1504.7806 1504.9193 1508.8177 1505.1074 1509.6050 1509.1114 1508.4105
#> May 2014 1503.8554 1504.0004 1509.2406 1504.1397 1509.7187 1509.0987 1507.9887
#> Jun 2014 1504.4240 1504.5548 1510.9090 1504.5430 1510.9806 1510.2939 1508.6527
#> Jul 2014 1506.3969 1506.5334 1513.7879 1506.4316 1513.3928 1512.7514 1510.5042
#> Aug 2014 1509.6748 1509.8854 1517.6878 1509.5629 1516.6583 1516.1982 1513.3436
#> Sep 2014 1513.8500 1514.2576 1522.2084 1513.5835 1520.3639 1520.2144 1516.8314
#> Oct 2014 1518.4742 1519.2338 1526.8214 1518.1620 1524.2424 1524.4214 1520.7266
#> Nov 2014 1522.8823 1524.1538 1530.8238 1522.7492 1527.8941 1528.4190 1524.5673
#> Dec 2014 1526.5055 1528.4202 1533.6434 1526.8422 1530.9686 1531.9102 1528.1453
#> Jan 2015 1528.9657 1531.6022 1534.9592 1530.0776 1533.2776 1534.7287 1531.4344
#> Feb 2015 1530.1427 1533.5163 1534.7561 1532.2861 1534.8250 1536.8830 1534.4657
#> Mar 2015 1530.3044 1534.3653 1533.4498 1533.6313 1535.9090 1538.6770 1537.5227
#> Apr 2015 1529.6764 1534.3037 1531.3242 1534.1845 1536.6629 1540.1721 1540.6334
#> May 2015 NaN 1533.6283 1528.7643 1534.1352 1537.2535 1541.4675 1543.8164
#> Jun 2015 NaN NaN 1526.3139 1533.8914 1537.9791 1542.8062 1547.2211
#> Jul 2015 NaN NaN NaN 1533.7648 1538.9689 1544.2891 1550.8605
#> Aug 2015 NaN NaN NaN NaN 1540.3853 1546.0823 1554.8198
#> Sep 2015 NaN NaN NaN NaN NaN 1548.1651 1558.9743
#> Oct 2015 NaN NaN NaN NaN NaN NaN 1562.9838
#> Nov 2015 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2015 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2016 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2016 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2016 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2016 NaN NaN NaN NaN NaN NaN NaN
#> May 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 71 Series 72 Series 73 Series 74 Series 75 Series 76 Series 77
#> Apr 1982 482.7176 482.7178 482.7185 482.7184 482.7498 482.7629 482.7596
#> May 1982 483.8399 483.8390 483.8424 483.8422 483.8672 483.8789 483.8765
#> Jun 1982 485.2894 485.2872 485.2936 485.2932 485.3115 485.3217 485.3206
#> Jul 1982 486.2247 486.2228 486.2284 486.2281 486.2346 486.2402 486.2400
#> Aug 1982 487.3906 487.3883 487.3947 487.3943 487.3908 487.3932 487.3939
#> Sep 1982 488.7871 488.7842 488.7920 488.7915 488.7780 488.7785 488.7799
#> Oct 1982 490.3964 490.3931 490.4019 490.4014 490.3775 490.3771 490.3788
#> Nov 1982 492.0915 492.0885 492.0969 492.0964 492.0618 492.0614 492.0625
#> Dec 1982 493.8581 493.8554 493.8633 493.8628 493.8189 493.8195 493.8197
#> Jan 1983 495.5669 495.5648 495.5715 495.5711 495.5202 495.5223 495.5213
#> Feb 1983 497.2790 497.2777 497.2828 497.2825 497.2278 497.2312 497.2290
#> Mar 1983 499.0723 499.0719 499.0749 499.0746 499.0195 499.0234 499.0201
#> Apr 1983 500.9239 500.9243 500.9251 500.9250 500.8725 500.8754 500.8715
#> May 1983 502.9987 502.9999 502.9986 502.9986 502.9505 502.9510 502.9470
#> Jun 1983 505.3622 505.3640 505.3608 505.3609 505.3170 505.3138 505.3102
#> Jul 1983 508.0335 508.0358 508.0309 508.0311 507.9910 507.9836 507.9808
#> Aug 1983 510.9906 510.9929 510.9874 510.9877 510.9507 510.9398 510.9381
#> Sep 1983 514.2876 514.2895 514.2845 514.2848 514.2504 514.2373 514.2371
#> Oct 1983 518.0270 518.0280 518.0249 518.0251 517.9932 517.9800 517.9811
#> Nov 1983 522.2696 522.2694 522.2692 522.2692 522.2401 522.2290 522.2313
#> Dec 1983 526.9322 526.9308 526.9338 526.9337 526.9079 526.9008 526.9038
#> Jan 1984 531.9319 531.9292 531.9356 531.9353 531.9140 531.9120 531.9155
#> Feb 1984 537.0563 537.0525 537.0621 537.0615 537.0453 537.0485 537.0520
#> Mar 1984 542.0661 542.0615 542.0735 542.0728 542.0612 542.0682 542.0717
#> Apr 1984 546.9140 546.9087 546.9224 546.9216 546.9149 546.9232 546.9269
#> May 1984 551.6138 551.6081 551.6227 551.6219 551.6202 551.6278 551.6317
#> Jun 1984 556.1143 556.1087 556.1230 556.1222 556.1255 556.1307 556.1348
#> Jul 1984 560.5833 560.5783 560.5909 560.5902 560.5971 560.5985 560.6027
#> Aug 1984 565.3164 565.3127 565.3219 565.3214 565.3291 565.3260 565.3299
#> Sep 1984 570.3985 570.3967 570.4009 570.4006 570.4055 570.3982 570.4013
#> Oct 1984 576.1095 576.1098 576.1085 576.1086 576.1079 576.0973 576.0990
#> Nov 1984 582.5275 582.5298 582.5233 582.5237 582.5154 582.5030 582.5031
#> Dec 1984 589.6371 589.6411 589.6302 589.6308 589.6145 589.6025 589.6008
#> Jan 1985 597.4485 597.4538 597.4397 597.4405 597.4167 597.4070 597.4033
#> Feb 1985 605.7307 605.7371 605.7206 605.7215 605.6912 605.6847 605.6792
#> Mar 1985 614.1241 614.1311 614.1130 614.1140 614.0783 614.0749 614.0678
#> Apr 1985 622.3243 622.3319 622.3127 622.3138 622.2729 622.2733 622.2647
#> May 1985 629.9310 629.9390 629.9190 629.9201 629.8750 629.8787 629.8690
#> Jun 1985 636.3622 636.3706 636.3499 636.3510 636.3037 636.3082 636.2983
#> Jul 1985 641.3206 641.3288 641.3085 641.3096 641.2635 641.2652 641.2566
#> Aug 1985 644.5775 644.5851 644.5658 644.5669 644.5259 644.5197 644.5141
#> Sep 1985 646.4268 646.4331 646.4162 646.4172 646.3850 646.3660 646.3654
#> Oct 1985 647.2351 647.2394 647.2263 647.2271 647.2067 647.1714 647.1770
#> Nov 1985 647.6600 647.6619 647.6535 647.6541 647.6470 647.5934 647.6058
#> Dec 1985 648.4751 648.4745 648.4709 648.4712 648.4762 648.4037 648.4223
#> Jan 1986 650.1365 650.1334 650.1346 650.1347 650.1494 650.0599 650.0834
#> Feb 1986 652.7936 652.7881 652.7945 652.7944 652.8166 652.7155 652.7421
#> Mar 1986 656.5595 656.5512 656.5640 656.5636 656.5925 656.4882 656.5159
#> Apr 1986 661.4490 661.4378 661.4582 661.4573 661.4937 661.3957 661.4227
#> May 1986 667.2306 667.2165 667.2450 667.2436 667.2867 667.2044 667.2296
#> Jun 1986 673.6344 673.6176 673.6543 673.6524 673.7010 673.6424 673.6653
#> Jul 1986 680.3530 680.3339 680.3780 680.3757 680.4272 680.3975 680.4182
#> Aug 1986 686.8169 686.7964 686.8461 686.8434 686.8954 686.8960 686.9146
#> Sep 1986 692.6604 692.6392 692.6925 692.6895 692.7406 692.7691 692.7859
#> Oct 1986 697.6876 697.6667 697.7209 697.7178 697.7669 697.8177 697.8327
#> Nov 1986 701.5518 701.5324 701.5841 701.5811 701.6276 701.6924 701.7053
#> Dec 1986 704.3273 704.3103 704.3567 704.3540 704.3976 704.4676 704.4781
#> Jan 1987 706.1889 706.1754 706.2131 706.2109 706.2508 706.3172 706.3244
#> Feb 1987 707.4203 707.4109 707.4380 707.4364 707.4719 707.5285 707.5313
#> Mar 1987 708.5961 708.5909 708.6068 708.6058 708.6368 708.6808 708.6783
#> Apr 1987 710.1209 710.1199 710.1248 710.1244 710.1507 710.1818 710.1733
#> May 1987 712.0426 712.0449 712.0405 712.0407 712.0629 712.0819 712.0687
#> Jun 1987 714.6201 714.6246 714.6138 714.6144 714.6326 714.6420 714.6266
#> Jul 1987 717.9905 717.9958 717.9824 717.9831 717.9967 718.0007 717.9868
#> Aug 1987 722.1813 722.1860 722.1739 722.1746 722.1827 722.1855 722.1775
#> Sep 1987 727.2192 727.2224 727.2142 727.2146 727.2159 727.2200 727.2213
#> Oct 1987 732.7259 732.7276 732.7235 732.7237 732.7168 732.7230 732.7348
#> Nov 1987 738.3798 738.3802 738.3800 738.3800 738.3660 738.3737 738.3939
#> Dec 1987 743.6665 743.6660 743.6687 743.6685 743.6515 743.6600 743.6836
#> Jan 1988 748.0433 748.0421 748.0471 748.0468 748.0335 748.0434 748.0637
#> Feb 1988 751.6258 751.6240 751.6307 751.6303 751.6277 751.6389 751.6494
#> Mar 1988 754.6887 754.6865 754.6939 754.6934 754.7063 754.7181 754.7139
#> Apr 1988 757.3577 757.3556 757.3621 757.3617 757.3908 757.4012 757.3806
#> May 1988 759.7567 759.7548 759.7597 759.7594 759.8009 759.8092 759.7747
#> Jun 1988 762.1215 762.1199 762.1229 762.1227 762.1712 762.1776 762.1340
#> Jul 1988 764.4680 764.4667 764.4681 764.4680 764.5149 764.5207 764.4766
#> Aug 1988 766.8730 766.8717 766.8725 766.8725 766.9087 766.9149 766.8798
#> Sep 1988 769.2633 769.2623 769.2628 769.2628 769.2793 769.2849 769.2680
#> Oct 1988 771.5457 771.5452 771.5453 771.5453 771.5370 771.5408 771.5475
#> Nov 1988 773.9558 773.9559 773.9560 773.9560 773.9249 773.9260 773.9550
#> Dec 1988 776.6196 776.6202 776.6204 776.6204 776.5754 776.5739 776.6172
#> Jan 1989 779.5756 779.5764 779.5769 779.5769 779.5313 779.5277 779.5727
#> Feb 1989 782.9530 782.9538 782.9545 782.9544 782.9225 782.9179 782.9506
#> Mar 1989 786.7533 786.7542 786.7540 786.7540 786.7472 786.7423 786.7508
#> Apr 1989 790.6378 790.6388 790.6372 790.6372 790.6625 790.6590 790.6359
#> May 1989 794.6855 794.6863 794.6836 794.6837 794.7451 794.7437 794.6849
#> Jun 1989 799.0115 799.0122 799.0084 799.0086 799.1006 799.1014 799.0116
#> Jul 1989 803.3217 803.3226 803.3168 803.3171 803.4271 803.4280 803.3180
#> Aug 1989 807.5394 807.5411 807.5326 807.5331 807.6380 807.6376 807.5288
#> Sep 1989 811.3476 811.3495 811.3401 811.3407 811.4129 811.4148 811.3342
#> Oct 1989 814.4570 814.4577 814.4517 814.4521 814.4645 814.4745 814.4511
#> Nov 1989 816.8055 816.8036 816.8047 816.8047 816.7363 816.7598 816.8163
#> Dec 1989 818.2852 818.2802 818.2898 818.2894 818.1291 818.1688 818.3169
#> Jan 1990 819.0434 819.0352 819.0534 819.0526 818.8018 818.8571 819.0956
#> Feb 1990 819.4224 819.4117 819.4366 819.4355 819.1075 819.1749 819.4898
#> Mar 1990 819.4483 819.4364 819.4646 819.4633 819.0810 819.1548 819.5224
#> Apr 1990 819.3092 819.2971 819.3255 819.3242 818.9152 818.9889 819.3808
#> May 1990 819.1706 819.1594 819.1852 819.1841 818.7767 818.8452 819.2333
#> Jun 1990 819.0697 819.0608 819.0808 819.0799 818.6984 818.7566 819.1169
#> Jul 1990 818.8956 818.8900 818.9021 818.9016 818.5654 818.6091 818.9226
#> Aug 1990 818.6076 818.6056 818.6093 818.6093 818.3363 818.3619 818.6121
#> Sep 1990 818.2566 818.2581 818.2536 818.2540 818.0559 818.0635 818.2398
#> Oct 1990 818.3298 818.3342 818.3231 818.3239 818.2016 818.1953 818.2978
#> Nov 1990 819.0625 819.0688 819.0543 819.0552 818.9853 818.9693 819.0229
#> Dec 1990 820.4735 820.4802 820.4674 820.4681 820.4040 820.3815 820.4351
#> Jan 1991 822.7713 822.7767 822.7718 822.7720 822.6543 822.6269 822.7423
#> Feb 1991 825.8366 825.8393 825.8472 825.8467 825.6178 825.5850 825.8218
#> Mar 1991 829.3071 829.3060 829.3305 829.3291 828.9470 828.9070 829.3086
#> Apr 1991 833.1645 833.1591 833.2020 833.1996 832.6476 832.5975 833.1812
#> May 1991 837.3610 837.3519 837.4110 837.4077 836.6941 836.6298 837.3853
#> Jun 1991 841.4700 841.4581 841.5292 841.5252 840.6795 840.5995 841.4938
#> Jul 1991 845.4814 845.4678 845.5462 845.5417 844.6116 844.5182 845.5000
#> Aug 1991 849.3904 849.3759 849.4572 849.4526 848.4916 848.3926 849.4055
#> Sep 1991 853.0266 853.0118 853.0922 853.0877 852.1536 852.0566 853.0410
#> Oct 1991 856.2774 856.2637 856.3378 856.3336 855.4812 855.3911 856.2894
#> Nov 1991 858.8178 858.8064 858.8688 858.8653 858.1450 858.0663 858.8249
#> Dec 1991 860.5717 860.5634 860.6106 860.6079 860.0576 859.9937 860.5733
#> Jan 1992 861.8995 861.8947 861.9248 861.9231 861.5606 861.5135 861.8954
#> Feb 1992 862.9978 862.9961 863.0098 863.0090 862.8288 862.7984 862.9886
#> Mar 1992 864.1994 864.2001 864.2002 864.2001 864.1748 864.1596 864.1870
#> Apr 1992 865.7841 865.7865 865.7766 865.7771 865.8641 865.8613 865.7707
#> May 1992 867.8175 867.8208 867.8045 867.8054 867.9560 867.9622 867.8043
#> Jun 1992 870.1600 870.1635 870.1449 870.1459 870.3183 870.3297 870.1485
#> Jul 1992 872.5912 872.5938 872.5771 872.5780 872.7430 872.7576 872.5842
#> Aug 1992 875.2343 875.2353 875.2235 875.2242 875.3633 875.3803 875.2349
#> Sep 1992 878.3368 878.3365 878.3303 878.3306 878.4329 878.4512 878.3449
#> Oct 1992 881.6737 881.6728 881.6717 881.6718 881.7286 881.7454 881.6868
#> Nov 1992 884.7965 884.7951 884.7990 884.7988 884.8037 884.8159 884.8116
#> Dec 1992 887.5089 887.5075 887.5150 887.5146 887.4711 887.4768 887.5230
#> Jan 1993 889.5626 889.5619 889.5700 889.5695 889.4893 889.4878 889.5715
#> Feb 1993 890.7811 890.7814 890.7877 890.7873 890.6877 890.6800 890.7828
#> Mar 1993 891.1956 891.1970 891.1998 891.1997 891.0995 891.0881 891.1904
#> Apr 1993 890.8877 890.8901 890.8882 890.8882 890.8023 890.7896 890.8755
#> May 1993 889.9304 889.9336 889.9267 889.9271 889.8636 889.8528 889.9132
#> Jun 1993 888.8563 888.8599 888.8494 888.8500 888.8099 888.8037 888.8389
#> Jul 1993 888.1311 888.1349 888.1224 888.1231 888.0971 888.0969 888.1170
#> Aug 1993 888.0369 888.0408 888.0262 888.0270 888.0071 888.0115 888.0245
#> Sep 1993 888.8547 888.8586 888.8424 888.8433 888.8173 888.8239 888.8425
#> Oct 1993 890.5448 890.5485 890.5329 890.5338 890.4907 890.4979 890.5342
#> Nov 1993 893.1364 893.1393 893.1290 893.1295 893.0622 893.0692 893.1330
#> Dec 1993 896.9391 896.9407 896.9409 896.9408 896.8453 896.8513 896.9498
#> Jan 1994 901.7637 901.7633 901.7785 901.7776 901.6537 901.6587 901.7945
#> Feb 1994 907.2970 907.2944 907.3277 907.3258 907.1781 907.1826 907.3530
#> Mar 1994 913.2797 913.2752 913.3266 913.3237 913.1588 913.1634 913.3617
#> Apr 1994 919.1097 919.1039 919.1709 919.1671 918.9922 918.9977 919.2151
#> May 1994 924.2038 924.1968 924.2762 924.2718 924.0925 924.0991 924.3273
#> Jun 1994 928.4230 928.4148 928.5022 928.4973 928.3181 928.3256 928.5572
#> Jul 1994 931.9511 931.9422 932.0314 932.0265 931.8493 931.8568 932.0858
#> Aug 1994 934.8983 934.8887 934.9745 934.9698 934.7959 934.8021 935.0242
#> Sep 1994 937.0062 936.9957 937.0743 937.0700 936.9066 936.9100 937.1160
#> Oct 1994 938.4784 938.4668 938.5353 938.5316 938.3851 938.3852 938.5675
#> Nov 1994 939.8398 939.8278 939.8834 939.8804 939.7551 939.7524 939.9052
#> Dec 1994 941.3475 941.3368 941.3757 941.3736 941.2692 941.2644 941.3863
#> Jan 1995 942.9618 942.9542 942.9746 942.9735 942.8856 942.8803 942.9748
#> Feb 1995 944.6683 944.6656 944.6671 944.6671 944.5881 944.5838 944.6584
#> Mar 1995 946.3916 946.3955 946.3786 946.3796 946.3007 946.2987 946.3626
#> Apr 1995 948.2246 948.2356 948.2028 948.2047 948.1190 948.1207 948.1825
#> May 1995 950.3475 950.3654 950.3199 950.3226 950.2268 950.2332 950.2988
#> Jun 1995 952.7181 952.7418 952.6858 952.6891 952.5829 952.5937 952.6644
#> Jul 1995 955.1529 955.1804 955.1162 955.1200 955.0071 955.0209 955.0945
#> Aug 1995 957.6308 957.6596 957.5897 957.5938 957.4779 957.4929 957.5670
#> Sep 1995 959.9207 959.9486 959.8777 959.8817 959.7624 959.7761 959.8533
#> Oct 1995 961.9274 961.9525 961.8851 961.8889 961.7686 961.7792 961.8592
#> Nov 1995 963.8100 963.8309 963.7716 963.7749 963.6581 963.6651 963.7459
#> Dec 1995 965.5309 965.5463 965.4994 965.5020 965.3951 965.3994 965.4777
#> Jan 1996 966.9030 966.9118 966.8822 966.8838 966.7941 966.7985 966.8700
#> Feb 1996 967.9159 967.9176 967.9085 967.9088 967.8426 967.8499 967.9112
#> Mar 1996 968.3085 968.3033 968.3158 968.3150 968.2748 968.2877 968.3375
#> Apr 1996 968.0764 968.0644 968.0984 968.0964 968.0810 968.1009 968.1399
#> May 1996 967.6747 967.6564 967.7096 967.7065 967.7121 967.7395 967.7703
#> Jun 1996 967.3153 967.2920 967.3595 967.3557 967.3768 967.4116 967.4369
#> Jul 1996 967.0705 967.0432 967.1203 967.1158 967.1468 967.1877 967.2108
#> Aug 1996 967.0272 966.9971 967.0785 967.0737 967.1094 967.1539 967.1767
#> Sep 1996 967.5355 967.5037 967.5835 967.5786 967.6148 967.6599 967.6829
#> Oct 1996 968.8380 968.8058 968.8778 968.8731 968.9046 968.9474 968.9714
#> Nov 1996 970.7879 970.7573 970.8151 970.8112 970.8341 970.8711 970.8957
#> Dec 1996 973.1235 973.0956 973.1364 973.1334 973.1466 973.1754 973.1990
#> Jan 1997 975.8755 975.8511 975.8743 975.8724 975.8771 975.8962 975.9166
#> Feb 1997 979.0139 978.9933 979.0004 978.9997 978.9982 979.0072 979.0222
#> Mar 1997 982.4548 982.4376 982.4328 982.4330 982.4292 982.4291 982.4372
#> Apr 1997 986.0803 986.0658 986.0546 986.0555 986.0537 986.0471 986.0474
#> May 1997 989.4738 989.4616 989.4485 989.4498 989.4521 989.4411 989.4344
#> Jun 1997 992.3827 992.3722 992.3617 992.3632 992.3706 992.3576 992.3459
#> Jul 1997 994.7009 994.6919 994.6868 994.6880 994.7001 994.6869 994.6734
#> Aug 1997 996.3598 996.3532 996.3541 996.3550 996.3690 996.3565 996.3452
#> Sep 1997 997.3653 997.3619 997.3667 997.3674 997.3797 997.3686 997.3629
#> Oct 1997 998.0098 998.0097 998.0143 998.0148 998.0209 998.0122 998.0150
#> Nov 1997 998.4024 998.4049 998.4046 998.4051 998.4045 998.3986 998.4079
#> Dec 1997 998.7653 998.7690 998.7598 998.7603 998.7542 998.7509 998.7623
#> Jan 1998 999.4905 999.4946 999.4722 999.4728 999.4633 999.4616 999.4692
#> Feb 1998 1000.7710 1000.7743 1000.7360 1000.7367 1000.7260 1000.7246 1000.7226
#> Mar 1998 1002.8573 1002.8588 1002.8046 1002.8056 1002.7964 1002.7940 1002.7779
#> Apr 1998 1005.9146 1005.9141 1005.8460 1005.8472 1005.8415 1005.8371 1005.8047
#> May 1998 1009.7820 1009.7800 1009.7013 1009.7027 1009.7030 1009.6971 1009.6484
#> Jun 1998 1014.0047 1014.0018 1013.9184 1013.9199 1013.9268 1013.9204 1013.8590
#> Jul 1998 1018.3447 1018.3415 1018.2599 1018.2611 1018.2738 1018.2679 1018.2007
#> Aug 1998 1022.2762 1022.2727 1022.1990 1022.1998 1022.2159 1022.2118 1022.1466
#> Sep 1998 1025.6679 1025.6639 1025.6031 1025.6034 1025.6207 1025.6193 1025.5641
#> Oct 1998 1028.3714 1028.3668 1028.3216 1028.3214 1028.3389 1028.3402 1028.2992
#> Nov 1998 1030.5990 1030.5931 1030.5646 1030.5640 1030.5810 1030.5845 1030.5604
#> Dec 1998 1032.7122 1032.7047 1032.6919 1032.6911 1032.7067 1032.7118 1032.7046
#> Jan 1999 1035.2147 1035.2058 1035.2043 1035.2036 1035.2169 1035.2222 1035.2291
#> Feb 1999 1038.3616 1038.3514 1038.3572 1038.3568 1038.3677 1038.3722 1038.3890
#> Mar 1999 1042.4010 1042.3902 1042.3987 1042.3988 1042.4074 1042.4106 1042.4317
#> Apr 1999 1047.2975 1047.2872 1047.2937 1047.2945 1047.3013 1047.3028 1047.3227
#> May 1999 1052.6934 1052.6843 1052.6863 1052.6875 1052.6922 1052.6912 1052.7065
#> Jun 1999 1058.4151 1058.4076 1058.4042 1058.4059 1058.4080 1058.4045 1058.4137
#> Jul 1999 1064.0555 1064.0506 1064.0437 1064.0456 1064.0442 1064.0386 1064.0420
#> Aug 1999 1069.1930 1069.1910 1069.1824 1069.1844 1069.1788 1069.1718 1069.1710
#> Sep 1999 1073.4521 1073.4526 1073.4423 1073.4443 1073.4345 1073.4271 1073.4234
#> Oct 1999 1076.5210 1076.5226 1076.5102 1076.5120 1076.4998 1076.4926 1076.4872
#> Nov 1999 1078.4115 1078.4115 1078.3957 1078.3971 1078.3851 1078.3781 1078.3735
#> Dec 1999 1079.4608 1079.4561 1079.4335 1079.4344 1079.4247 1079.4177 1079.4168
#> Jan 2000 1079.6340 1079.6210 1079.5876 1079.5879 1079.5826 1079.5746 1079.5808
#> Feb 2000 1079.1488 1079.1248 1079.0757 1079.0757 1079.0758 1079.0656 1079.0816
#> Mar 2000 1078.2913 1078.2550 1078.1856 1078.1855 1078.1914 1078.1778 1078.2051
#> Apr 2000 1077.3954 1077.3469 1077.2537 1077.2539 1077.2650 1077.2473 1077.2859
#> May 2000 1076.9893 1076.9299 1076.8127 1076.8134 1076.8288 1076.8068 1076.8556
#> Jun 2000 1077.2984 1077.2305 1077.0914 1077.0929 1077.1106 1077.0844 1077.1411
#> Jul 2000 1078.5944 1078.5216 1078.3638 1078.3662 1078.3838 1078.3541 1078.4152
#> Aug 2000 1080.8655 1080.7918 1080.6210 1080.6242 1080.6399 1080.6080 1080.6693
#> Sep 2000 1084.2179 1084.1476 1083.9712 1083.9753 1083.9875 1083.9551 1084.0128
#> Oct 2000 1088.5016 1088.4382 1088.2664 1088.2709 1088.2799 1088.2494 1088.2999
#> Nov 2000 1093.4522 1093.3982 1093.2411 1093.2459 1093.2525 1093.2261 1093.2674
#> Dec 2000 1098.6023 1098.5596 1098.4254 1098.4300 1098.4353 1098.4149 1098.4458
#> Jan 2001 1103.4865 1103.4550 1103.3504 1103.3546 1103.3605 1103.3474 1103.3683
#> Feb 2001 1108.0358 1108.0144 1107.9427 1107.9461 1107.9547 1107.9497 1107.9623
#> Mar 2001 1112.4414 1112.4279 1112.3880 1112.3905 1112.4030 1112.4055 1112.4120
#> Apr 2001 1116.9223 1116.9138 1116.9024 1116.9039 1116.9199 1116.9282 1116.9314
#> May 2001 1121.6986 1121.6926 1121.7043 1121.7048 1121.7240 1121.7363 1121.7386
#> Jun 2001 1127.0080 1127.0033 1127.0301 1127.0298 1127.0512 1127.0662 1127.0678
#> Jul 2001 1132.9353 1132.9311 1132.9654 1132.9646 1132.9869 1133.0031 1133.0041
#> Aug 2001 1139.6073 1139.6031 1139.6363 1139.6354 1139.6570 1139.6728 1139.6731
#> Sep 2001 1146.9471 1146.9428 1146.9695 1146.9688 1146.9881 1147.0022 1147.0019
#> Oct 2001 1155.0136 1155.0092 1155.0263 1155.0257 1155.0417 1155.0530 1155.0523
#> Nov 2001 1163.7243 1163.7203 1163.7265 1163.7260 1163.7376 1163.7455 1163.7445
#> Dec 2001 1172.5965 1172.5932 1172.5900 1172.5897 1172.5968 1172.6012 1172.6001
#> Jan 2002 1181.1453 1181.1429 1181.1346 1181.1342 1181.1374 1181.1388 1181.1380
#> Feb 2002 1189.2603 1189.2594 1189.2497 1189.2493 1189.2489 1189.2479 1189.2475
#> Mar 2002 1196.8109 1196.8115 1196.8050 1196.8045 1196.8011 1196.7984 1196.7985
#> Apr 2002 1203.7025 1203.7040 1203.7052 1203.7044 1203.6999 1203.6969 1203.6975
#> May 2002 1209.9689 1209.9705 1209.9817 1209.9806 1209.9759 1209.9732 1209.9747
#> Jun 2002 1215.7332 1215.7344 1215.7550 1215.7536 1215.7493 1215.7471 1215.7495
#> Jul 2002 1221.4678 1221.4681 1221.4948 1221.4932 1221.4895 1221.4878 1221.4910
#> Aug 2002 1227.5020 1227.5001 1227.5300 1227.5283 1227.5257 1227.5243 1227.5285
#> Sep 2002 1234.0516 1234.0467 1234.0769 1234.0751 1234.0742 1234.0731 1234.0786
#> Oct 2002 1240.9021 1240.8946 1240.9212 1240.9196 1240.9199 1240.9188 1240.9253
#> Nov 2002 1247.5395 1247.5319 1247.5495 1247.5481 1247.5477 1247.5457 1247.5519
#> Dec 2002 1253.6216 1253.6174 1253.6213 1253.6205 1253.6170 1253.6132 1253.6171
#> Jan 2003 1259.5184 1259.5212 1259.5089 1259.5086 1259.4997 1259.4932 1259.4933
#> Feb 2003 1265.5636 1265.5756 1265.5478 1265.5480 1265.5325 1265.5231 1265.5182
#> Mar 2003 1271.9452 1271.9670 1271.9283 1271.9288 1271.9074 1271.8958 1271.8859
#> Apr 2003 1278.7781 1278.8086 1278.7654 1278.7658 1278.7414 1278.7295 1278.7149
#> May 2003 1285.9006 1285.9376 1285.8958 1285.8958 1285.8723 1285.8623 1285.8437
#> Jun 2003 1292.9585 1292.9981 1292.9637 1292.9633 1292.9431 1292.9360 1292.9156
#> Jul 2003 1299.6066 1299.6450 1299.6214 1299.6203 1299.6049 1299.6008 1299.5813
#> Aug 2003 1305.7675 1305.8015 1305.7893 1305.7875 1305.7771 1305.7751 1305.7586
#> Sep 2003 1311.5800 1311.6068 1311.6056 1311.6033 1311.5975 1311.5968 1311.5852
#> Oct 2003 1317.1478 1317.1653 1317.1745 1317.1717 1317.1702 1317.1700 1317.1649
#> Nov 2003 1322.5398 1322.5466 1322.5661 1322.5629 1322.5654 1322.5656 1322.5677
#> Dec 2003 1328.1924 1328.1887 1328.2169 1328.2136 1328.2200 1328.2207 1328.2293
#> Jan 2004 1334.5302 1334.5182 1334.5512 1334.5481 1334.5571 1334.5585 1334.5713
#> Feb 2004 1341.3477 1341.3307 1341.3642 1341.3616 1341.3724 1341.3750 1341.3887
#> Mar 2004 1348.2286 1348.2104 1348.2405 1348.2387 1348.2505 1348.2550 1348.2665
#> Apr 2004 1354.8103 1354.7947 1354.8173 1354.8165 1354.8270 1354.8328 1354.8394
#> May 2004 1361.3284 1361.3187 1361.3301 1361.3303 1361.3369 1361.3425 1361.3426
#> Jun 2004 1368.1526 1368.1501 1368.1484 1368.1497 1368.1519 1368.1568 1368.1502
#> Jul 2004 1375.3059 1375.3090 1375.2973 1375.2993 1375.3000 1375.3054 1375.2935
#> Aug 2004 1382.5998 1382.6057 1382.5878 1382.5900 1382.5930 1382.6000 1382.5853
#> Sep 2004 1389.2705 1389.2783 1389.2547 1389.2568 1389.2639 1389.2730 1389.2570
#> Oct 2004 1394.5859 1394.5960 1394.5638 1394.5656 1394.5768 1394.5878 1394.5705
#> Nov 2004 1398.0949 1398.1082 1398.0655 1398.0672 1398.0816 1398.0943 1398.0753
#> Dec 2004 1399.8628 1399.8797 1399.8262 1399.8279 1399.8442 1399.8585 1399.8371
#> Jan 2005 1400.1253 1400.1464 1400.0834 1400.0853 1400.1018 1400.1176 1400.0928
#> Feb 2005 1399.1705 1399.1956 1399.1263 1399.1285 1399.1440 1399.1615 1399.1324
#> Mar 2005 1397.2148 1397.2438 1397.1714 1397.1741 1397.1870 1397.2057 1397.1719
#> Apr 2005 1394.4408 1394.4737 1394.4004 1394.4037 1394.4130 1394.4324 1394.3937
#> May 2005 1390.8208 1390.8565 1390.7862 1390.7901 1390.7941 1390.8123 1390.7706
#> Jun 2005 1386.9179 1386.9545 1386.8905 1386.8948 1386.8926 1386.9075 1386.8657
#> Jul 2005 1383.3042 1383.3403 1383.2806 1383.2851 1383.2750 1383.2839 1383.2455
#> Aug 2005 1380.4352 1380.4690 1380.4113 1380.4156 1380.3972 1380.3979 1380.3662
#> Sep 2005 1378.6513 1378.6811 1378.6230 1378.6270 1378.6009 1378.5921 1378.5702
#> Oct 2005 1378.4162 1378.4413 1378.3808 1378.3842 1378.3520 1378.3338 1378.3229
#> Nov 2005 1380.2790 1380.2992 1380.2347 1380.2374 1380.2020 1380.1759 1380.1755
#> Dec 2005 1384.0678 1384.0834 1384.0136 1384.0158 1383.9800 1383.9486 1383.9567
#> Jan 2006 1388.9598 1388.9709 1388.8974 1388.8989 1388.8663 1388.8332 1388.8473
#> Feb 2006 1394.2615 1394.2685 1394.1948 1394.1956 1394.1690 1394.1399 1394.1550
#> Mar 2006 1399.6338 1399.6373 1399.5664 1399.5666 1399.5472 1399.5260 1399.5377
#> Apr 2006 1404.8148 1404.8153 1404.7498 1404.7495 1404.7371 1404.7248 1404.7319
#> May 2006 1409.8041 1409.8015 1409.7417 1409.7409 1409.7364 1409.7322 1409.7360
#> Jun 2006 1414.3450 1414.3387 1414.2851 1414.2837 1414.2877 1414.2882 1414.2933
#> Jul 2006 1418.0432 1418.0310 1417.9857 1417.9836 1417.9967 1417.9980 1418.0108
#> Aug 2006 1420.9429 1420.9235 1420.8874 1420.8843 1420.9050 1420.9016 1420.9287
#> Sep 2006 1422.9987 1422.9718 1422.9488 1422.9445 1422.9709 1422.9588 1423.0039
#> Oct 2006 1424.7210 1424.6868 1424.6853 1424.6798 1424.7112 1424.6895 1424.7529
#> Nov 2006 1426.8865 1426.8466 1426.8758 1426.8693 1426.9049 1426.8756 1426.9532
#> Dec 2006 1430.1416 1430.0995 1430.1652 1430.1580 1430.1967 1430.1643 1430.2477
#> Jan 2007 1434.8852 1434.8444 1434.9503 1434.9431 1434.9842 1434.9555 1435.0343
#> Feb 2007 1441.2752 1441.2395 1441.3858 1441.3789 1441.4225 1441.4097 1441.4677
#> Mar 2007 1449.1502 1449.1224 1449.3041 1449.2981 1449.3438 1449.3564 1449.3815
#> Apr 2007 1458.5125 1458.4931 1458.7017 1458.6968 1458.7437 1458.7839 1458.7730
#> May 2007 1468.7893 1468.7771 1469.0003 1468.9965 1469.0436 1469.1064 1469.0655
#> Jun 2007 1479.4120 1479.4058 1479.6236 1479.6208 1479.6665 1479.7406 1479.6824
#> Jul 2007 1489.5425 1489.5403 1489.7308 1489.7290 1489.7708 1489.8414 1489.7825
#> Aug 2007 1498.5547 1498.5555 1498.7055 1498.7047 1498.7415 1498.7967 1498.7503
#> Sep 2007 1506.4581 1506.4601 1506.5600 1506.5601 1506.5906 1506.6198 1506.5983
#> Oct 2007 1513.0834 1513.0833 1513.1264 1513.1268 1513.1486 1513.1435 1513.1573
#> Nov 2007 1518.2043 1518.1983 1518.1802 1518.1801 1518.1902 1518.1468 1518.2019
#> Dec 2007 1521.7334 1521.7176 1521.6398 1521.6383 1521.6342 1521.5550 1521.6509
#> Jan 2008 1523.7672 1523.7392 1523.6074 1523.6038 1523.5834 1523.4771 1523.6057
#> Feb 2008 1524.5018 1524.4621 1524.2856 1524.2797 1524.2419 1524.1312 1524.2682
#> Mar 2008 1524.2819 1524.2322 1524.0213 1524.0133 1523.9583 1523.8624 1523.9866
#> Apr 2008 1523.6147 1523.5580 1523.3218 1523.3122 1523.2427 1523.1718 1523.2711
#> May 2008 1523.2132 1523.1530 1522.9008 1522.8902 1522.8091 1522.7611 1522.8354
#> Jun 2008 1523.5454 1523.4836 1523.2283 1523.2170 1523.1278 1523.0937 1523.1517
#> Jul 2008 1525.2870 1525.2276 1524.9847 1524.9733 1524.8799 1524.8415 1524.8995
#> Aug 2008 1529.1328 1529.0782 1528.8565 1528.8454 1528.7524 1528.6874 1528.7673
#> Sep 2008 1535.1485 1535.0983 1534.9013 1534.8911 1534.8053 1534.6969 1534.8191
#> Oct 2008 1543.2539 1543.2054 1543.0294 1543.0206 1542.9500 1542.7906 1542.9689
#> Nov 2008 1552.6101 1552.5595 1552.3952 1552.3883 1552.3390 1552.1331 1552.3698
#> Dec 2008 1562.2025 1562.1455 1561.9829 1561.9781 1561.9549 1561.7198 1562.0040
#> Jan 2009 1571.2945 1571.2281 1571.0575 1571.0549 1571.0593 1570.8231 1571.1305
#> Feb 2009 1579.0738 1578.9956 1578.8049 1578.8043 1578.8330 1578.6054 1578.9285
#> Mar 2009 1585.0340 1584.9438 1584.7268 1584.7281 1584.7762 1584.5709 1584.8948
#> Apr 2009 1588.7485 1588.6498 1588.4110 1588.4142 1588.4756 1588.3227 1588.6107
#> May 2009 1590.0294 1589.9295 1589.6847 1589.6902 1589.7601 1589.7035 1589.9002
#> Jun 2009 1589.0350 1588.9422 1588.7163 1588.7242 1588.7988 1588.8844 1588.9310
#> Jul 2009 1585.9468 1585.8666 1585.6872 1585.6977 1585.7745 1586.0412 1585.8898
#> Aug 2009 1581.1292 1581.0635 1580.9536 1580.9659 1581.0427 1581.5097 1581.1351
#> Sep 2009 1575.4597 1575.4084 1575.3781 1575.3909 1575.4638 1576.1234 1575.5290
#> Oct 2009 1569.4098 1569.3740 1569.4229 1569.4352 1569.5007 1570.3225 1569.5351
#> Nov 2009 1563.5789 1563.5599 1563.6804 1563.6914 1563.7483 1564.6863 1563.7512
#> Dec 2009 1558.3546 1558.3532 1558.5308 1558.5402 1558.5889 1559.5896 1558.5631
#> Jan 2010 1554.1146 1554.1316 1554.3450 1554.3529 1554.3946 1555.4045 1554.3448
#> Feb 2010 1551.0587 1551.0931 1551.3255 1551.3325 1551.3702 1552.3587 1551.3044
#> Mar 2010 1549.1450 1549.1937 1549.4248 1549.4318 1549.4681 1550.3965 1549.3962
#> Apr 2010 1548.2557 1548.3149 1548.5250 1548.5328 1548.5689 1549.3944 1548.4988
#> May 2010 1548.1584 1548.2213 1548.3928 1548.4015 1548.4356 1549.1171 1548.3756
#> Jun 2010 1548.6983 1548.7585 1548.8812 1548.8903 1548.9196 1549.4243 1548.8743
#> Jul 2010 1549.8002 1549.8506 1549.9214 1549.9301 1549.9505 1550.2579 1549.9229
#> Aug 2010 1550.7962 1550.8247 1550.8476 1550.8538 1550.8622 1550.9758 1550.8562
#> Sep 2010 1551.0209 1551.0224 1551.0122 1551.0145 1551.0086 1550.9530 1551.0181
#> Oct 2010 1550.0537 1550.0319 1550.0086 1550.0059 1549.9838 1549.7984 1549.9961
#> Nov 2010 1547.5702 1547.5363 1547.5221 1547.5143 1547.4761 1547.2067 1547.4775
#> Dec 2010 1543.7700 1543.7402 1543.7526 1543.7404 1543.6876 1543.3760 1543.6655
#> Jan 2011 1538.8219 1538.8128 1538.8618 1538.8469 1538.7821 1538.4602 1538.7285
#> Feb 2011 1533.1396 1533.1635 1533.2574 1533.2421 1533.1692 1532.8540 1533.0802
#> Mar 2011 1527.2850 1527.3473 1527.4812 1527.4694 1527.3956 1527.1292 1527.2720
#> Apr 2011 1521.4437 1521.5430 1521.7044 1521.6991 1521.6312 1521.4570 1521.4821
#> May 2011 1515.9019 1516.0294 1516.2038 1516.2060 1516.1495 1516.1059 1515.9908
#> Jun 2011 1510.6780 1510.8177 1510.9871 1510.9961 1510.9531 1511.0651 1510.8058
#> Jul 2011 1505.9346 1506.0682 1506.2151 1506.2277 1506.1977 1506.4745 1506.0815
#> Aug 2011 1502.0761 1502.1905 1502.3017 1502.3145 1502.2949 1502.7251 1502.2203
#> Sep 2011 1499.3704 1499.4508 1499.5215 1499.5314 1499.5184 1500.0716 1499.4872
#> Oct 2011 1498.0447 1498.0745 1498.1116 1498.1150 1498.1056 1498.7412 1498.1212
#> Nov 2011 1498.6374 1498.6056 1498.6260 1498.6200 1498.6124 1499.2886 1498.6798
#> Dec 2011 1501.3078 1501.2106 1501.2360 1501.2188 1501.2121 1501.8948 1501.3366
#> Jan 2012 1505.6144 1505.4667 1505.5219 1505.4934 1505.4894 1506.1578 1505.6766
#> Feb 2012 1510.9883 1510.8033 1510.9047 1510.8675 1510.8692 1511.4876 1511.1212
#> Mar 2012 1516.6299 1516.4119 1516.5598 1516.5178 1516.5272 1517.0500 1516.8432
#> Apr 2012 1521.8144 1521.5681 1521.7585 1521.7153 1521.7281 1522.1420 1522.1035
#> May 2012 1526.0825 1525.8147 1526.0424 1526.0022 1526.0165 1526.3516 1526.4456
#> Jun 2012 1529.2315 1528.9529 1529.2120 1529.1795 1529.1950 1529.5107 1529.6489
#> Jul 2012 1530.9850 1530.7083 1530.9893 1530.9682 1530.9871 1531.3589 1531.4310
#> Aug 2012 1531.3231 1531.0667 1531.3595 1531.3529 1531.3789 1531.8799 1531.7782
#> Sep 2012 1530.4862 1530.2644 1530.5596 1530.5705 1530.6071 1531.2909 1530.9396
#> Oct 2012 1528.7796 1528.5982 1528.8888 1528.9168 1528.9675 1529.8569 1529.2330
#> Nov 2012 1526.6652 1526.5290 1526.8120 1526.8528 1526.9200 1527.9982 1527.1358
#> Dec 2012 1524.6051 1524.5131 1524.7871 1524.8336 1524.9175 1526.1282 1525.1121
#> Jan 2013 1523.0311 1523.0048 1523.2710 1523.3140 1523.4139 1524.6704 1523.6213
#> Feb 2013 1522.1217 1522.1623 1522.4579 1522.4886 1522.6013 1523.8163 1522.8542
#> Mar 2013 1521.8379 1521.9214 1522.2404 1522.2574 1522.3796 1523.4773 1522.7058
#> Apr 2013 1522.1611 1522.2629 1522.5853 1522.5885 1522.6994 1523.6136 1523.1093
#> May 2013 1522.8559 1522.9560 1523.2538 1523.2442 1523.3221 1524.0180 1523.8150
#> Jun 2013 1523.4396 1523.5256 1523.7672 1523.7481 1523.7795 1524.2457 1524.2944
#> Jul 2013 1523.6055 1523.6695 1523.8284 1523.8043 1523.7844 1524.0313 1524.2569
#> Aug 2013 1523.1493 1523.1829 1523.2425 1523.2170 1523.1506 1523.2100 1523.5287
#> Sep 2013 1522.1433 1522.1510 1522.1046 1522.0753 1521.9780 1521.9033 1522.2390
#> Oct 2013 1520.8076 1520.8076 1520.6643 1520.6279 1520.5229 1520.3724 1520.6612
#> Nov 2013 1519.2006 1519.2293 1519.0172 1518.9730 1518.8847 1518.7041 1518.9037
#> Dec 2013 1517.0872 1517.1785 1516.9418 1516.8904 1516.8414 1516.6529 1516.7530
#> Jan 2014 1514.5410 1514.7667 1514.5591 1514.5015 1514.5070 1514.3065 1514.3308
#> Feb 2014 1511.7540 1512.1591 1512.0752 1512.0134 1512.0763 1511.8540 1511.8378
#> Mar 2014 1509.0456 1509.6581 1509.8298 1509.7680 1509.8702 1509.6479 1509.5863
#> Apr 2014 1507.0843 1507.8768 1508.3611 1508.3062 1508.3988 1508.1996 1508.0834
#> May 2014 1506.2062 1507.0771 1507.8243 1507.7872 1507.8388 1507.7013 1507.5302
#> Jun 2014 1506.4788 1507.2719 1508.1297 1508.1253 1508.1273 1508.0616 1507.7889
#> Jul 2014 1508.0562 1508.5933 1509.3443 1509.3864 1509.3508 1509.3360 1508.9490
#> Aug 2014 1510.7739 1510.8899 1511.3028 1511.3986 1511.3548 1511.3482 1510.8938
#> Sep 2014 1514.2924 1513.8725 1513.7535 1513.9007 1513.8889 1513.8369 1513.4014
#> Oct 2014 1518.4041 1517.4258 1516.6596 1516.8436 1516.9060 1516.7590 1516.4562
#> Nov 2014 1522.6213 1521.1333 1519.7058 1519.8998 1520.0742 1519.8018 1519.7462
#> Dec 2014 1526.6814 1524.8342 1522.8504 1523.0225 1523.3321 1522.9287 1523.2158
#> Jan 2015 1530.5290 1528.4367 1526.1101 1526.2315 1526.6762 1526.1621 1526.8511
#> Feb 2015 1534.1692 1532.0324 1529.5668 1529.6179 1530.1711 1529.5902 1530.6896
#> Mar 2015 1537.8455 1535.9933 1533.5868 1533.4999 1534.1117 1533.5083 1534.9867
#> Apr 2015 1541.5374 1540.3678 1538.2934 1538.0420 1538.6816 1538.1096 1539.8690
#> May 2015 1545.2302 1545.1433 1543.6744 1543.3043 1543.9220 1543.4139 1545.3017
#> Jun 2015 1549.0596 1550.3970 1549.7766 1549.3905 1549.9028 1549.4862 1551.4511
#> Jul 2015 1553.0522 1556.0379 1556.4526 1556.1894 1556.5013 1556.2146 1558.1792
#> Aug 2015 1557.3226 1562.0345 1563.5852 1563.5941 1563.6111 1563.4932 1565.2696
#> Sep 2015 1561.7304 1568.0977 1570.7996 1571.2129 1570.8528 1570.9387 1572.2764
#> Oct 2015 1565.8794 1573.6995 1577.5014 1578.4125 1577.6179 1577.9383 1578.5478
#> Nov 2015 1569.4460 1578.4535 1583.2627 1584.7067 1583.4510 1584.0343 1583.6359
#> Dec 2015 NaN 1582.2100 1587.9213 1589.8676 1588.1527 1589.0282 1587.3892
#> Jan 2016 NaN NaN 1591.5857 1593.9449 1591.7930 1592.9912 1589.9546
#> Feb 2016 NaN NaN NaN 1597.0479 1594.4925 1596.0420 1591.5425
#> Mar 2016 NaN NaN NaN NaN 1596.5855 1598.4973 1592.5811
#> Apr 2016 NaN NaN NaN NaN NaN 1600.5207 1593.3308
#> May 2016 NaN NaN NaN NaN NaN NaN 1594.2332
#> Jun 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2016 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2016 NaN NaN NaN NaN NaN NaN NaN
#> Sep 2016 NaN NaN NaN NaN NaN NaN NaN
#> Oct 2016 NaN NaN NaN NaN NaN NaN NaN
#> Nov 2016 NaN NaN NaN NaN NaN NaN NaN
#> Dec 2016 NaN NaN NaN NaN NaN NaN NaN
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 78 Series 79 Series 80 Series 81 Series 82 Series 83 Series 84
#> Apr 1982 482.7624 482.7409 482.7679 482.7702 482.7708 482.7709 482.7709
#> May 1982 483.8784 483.8564 483.8840 483.8868 483.8848 483.8874 483.8875
#> Jun 1982 485.3212 485.2964 485.3259 485.3287 485.3236 485.3290 485.3293
#> Jul 1982 486.2399 486.2253 486.2431 486.2452 486.2404 486.2453 486.2456
#> Aug 1982 487.3930 487.3840 487.3951 487.3969 487.3911 487.3968 487.3971
#> Sep 1982 488.7783 488.7749 488.7800 488.7819 488.7746 488.7816 488.7820
#> Oct 1982 490.3769 490.3817 490.3790 490.3812 490.3730 490.3810 490.3814
#> Nov 1982 492.0611 492.0797 492.0644 492.0671 492.0593 492.0670 492.0674
#> Dec 1982 493.8190 493.8514 493.8241 493.8275 493.8203 493.8277 493.8280
#> Jan 1983 495.5216 495.5674 495.5288 495.5327 495.5268 495.5333 495.5336
#> Feb 1983 497.2303 497.2872 497.2392 497.2436 497.2395 497.2445 497.2447
#> Mar 1983 499.0224 499.0869 499.0322 499.0367 499.0347 499.0379 499.0379
#> Apr 1983 500.8744 500.9421 500.8843 500.8885 500.8886 500.8897 500.8897
#> May 1983 502.9502 503.0169 502.9591 502.9625 502.9645 502.9638 502.9637
#> Jun 1983 505.3132 505.3773 505.3202 505.3226 505.3263 505.3237 505.3235
#> Jul 1983 507.9832 508.0433 507.9877 507.9889 507.9938 507.9898 507.9895
#> Aug 1983 510.9396 510.9930 510.9414 510.9413 510.9465 510.9419 510.9416
#> Sep 1983 514.2374 514.2824 514.2367 514.2358 514.2401 514.2359 514.2357
#> Oct 1983 517.9803 518.0148 517.9778 517.9764 517.9788 517.9762 517.9761
#> Nov 1983 522.2293 522.2521 522.2260 522.2247 522.2242 522.2242 522.2243
#> Dec 1983 526.9010 526.9126 526.8979 526.8971 526.8937 526.8965 526.8967
#> Jan 1984 531.9122 531.9123 531.9100 531.9101 531.9036 531.9094 531.9097
#> Feb 1984 537.0485 537.0378 537.0476 537.0486 537.0393 537.0479 537.0484
#> Mar 1984 542.0681 542.0487 542.0683 542.0701 542.0587 542.0694 542.0700
#> Apr 1984 546.9231 546.8954 546.9237 546.9260 546.9131 546.9253 546.9259
#> May 1984 551.6276 551.5923 551.6282 551.6306 551.6168 551.6298 551.6305
#> Jun 1984 556.1306 556.0899 556.1307 556.1328 556.1193 556.1320 556.1327
#> Jul 1984 560.5985 560.5571 560.5978 560.5994 560.5873 560.5986 560.5992
#> Aug 1984 565.3261 565.2910 565.3246 565.3254 565.3164 565.3247 565.3251
#> Sep 1984 570.3984 570.3779 570.3962 570.3959 570.3916 570.3953 570.3956
#> Oct 1984 576.0975 576.0962 576.0948 576.0935 576.0943 576.0932 576.0931
#> Nov 1984 582.5033 582.5231 582.5003 582.4981 582.5039 582.4981 582.4978
#> Dec 1984 589.6028 589.6431 589.6001 589.5974 589.6073 589.5976 589.5971
#> Jan 1985 597.4072 597.4650 597.4052 597.4023 597.4153 597.4028 597.4022
#> Feb 1985 605.6849 605.7573 605.6838 605.6809 605.6964 605.6817 605.6809
#> Mar 1985 614.0750 614.1589 614.0749 614.0722 614.0894 614.0733 614.0724
#> Apr 1985 622.2733 622.3675 622.2746 622.2723 622.2907 622.2736 622.2727
#> May 1985 629.8785 629.9818 629.8815 629.8797 629.8992 629.8812 629.8802
#> Jun 1985 636.3080 636.4165 636.3119 636.3104 636.3308 636.3122 636.3111
#> Jul 1985 641.2650 641.3700 641.2685 641.2669 641.2870 641.2685 641.2675
#> Aug 1985 644.5197 644.6117 644.5207 644.5182 644.5370 644.5195 644.5185
#> Sep 1985 646.3665 646.4341 646.3628 646.3588 646.3747 646.3593 646.3585
#> Oct 1985 647.1724 647.2056 647.1622 647.1562 647.1674 647.1555 647.1550
#> Nov 1985 647.5951 647.5887 647.5773 647.5689 647.5747 647.5670 647.5667
#> Dec 1985 648.4061 648.3602 648.3804 648.3695 648.3694 648.3662 648.3662
#> Jan 1986 650.0630 649.9813 650.0301 650.0170 650.0112 650.0124 650.0127
#> Feb 1986 652.7191 652.6063 652.6809 652.6666 652.6548 652.6609 652.6616
#> Mar 1986 656.4921 656.3509 656.4514 656.4370 656.4187 656.4306 656.4316
#> Apr 1986 661.3995 661.2316 661.3598 661.3469 661.3212 661.3402 661.3416
#> May 1986 667.2079 667.0175 667.1721 667.1620 667.1291 667.1554 667.1571
#> Jun 1986 673.6453 673.4373 673.6160 673.6097 673.5698 673.6035 673.6055
#> Jul 1986 680.3996 680.1830 680.3784 680.3766 680.3306 680.3710 680.3734
#> Aug 1986 686.8972 686.6832 686.8850 686.8876 686.8376 686.8829 686.8855
#> Sep 1986 692.7694 692.5676 692.7659 692.7725 692.7203 692.7689 692.7715
#> Oct 1986 697.8170 697.6358 697.8210 697.8308 697.7788 697.8282 697.8308
#> Nov 1986 701.6910 701.5368 701.7007 701.7124 701.6637 701.7107 701.7131
#> Dec 1986 704.4658 704.3405 704.4790 704.4913 704.4484 704.4904 704.4926
#> Jan 1987 706.3153 706.2207 706.3297 706.3413 706.3070 706.3411 706.3428
#> Feb 1987 707.5268 707.4616 707.5409 707.5507 707.5266 707.5510 707.5522
#> Mar 1987 708.6794 708.6400 708.6925 708.7001 708.6867 708.7010 708.7017
#> Apr 1987 710.1809 710.1629 710.1925 710.1978 710.1948 710.1991 710.1992
#> May 1987 712.0816 712.0756 712.0911 712.0942 712.0998 712.0957 712.0954
#> Jun 1987 714.6423 714.6392 714.6494 714.6505 714.6619 714.6521 714.6515
#> Jul 1987 718.0013 717.9960 718.0062 718.0059 718.0194 718.0073 718.0066
#> Aug 1987 722.1863 722.1770 722.1893 722.1885 722.2005 722.1896 722.1890
#> Sep 1987 727.2204 727.2143 727.2222 727.2216 727.2298 727.2223 727.2219
#> Oct 1987 732.7228 732.7289 732.7239 732.7238 732.7281 732.7242 732.7240
#> Nov 1987 738.3727 738.3947 738.3739 738.3744 738.3753 738.3747 738.3747
#> Dec 1987 743.6584 743.6940 743.6603 743.6618 743.6600 743.6620 743.6621
#> Jan 1988 748.0414 748.0816 748.0449 748.0474 748.0437 748.0477 748.0479
#> Feb 1988 751.6370 751.6691 751.6425 751.6459 751.6408 751.6464 751.6467
#> Mar 1988 754.7167 754.7290 754.7239 754.7279 754.7222 754.7285 754.7288
#> Apr 1988 757.4008 757.3852 757.4081 757.4120 757.4067 757.4126 757.4128
#> May 1988 759.8101 759.7616 759.8160 759.8189 759.8146 759.8193 759.8195
#> Jun 1988 762.1796 762.1011 762.1835 762.1850 762.1819 762.1852 762.1854
#> Jul 1988 764.5236 764.4289 764.5251 764.5254 764.5232 764.5253 764.5254
#> Aug 1988 766.9181 766.8258 766.9174 766.9167 766.9148 766.9164 766.9164
#> Sep 1988 769.2872 769.2261 769.2848 769.2836 769.2822 769.2831 769.2831
#> Oct 1988 771.5415 771.5282 771.5382 771.5368 771.5362 771.5364 771.5364
#> Nov 1988 773.9250 773.9607 773.9218 773.9209 773.9208 773.9205 773.9206
#> Dec 1988 776.5713 776.6449 776.5695 776.5693 776.5698 776.5693 776.5693
#> Jan 1989 779.5244 779.6142 779.5247 779.5256 779.5263 779.5258 779.5258
#> Feb 1989 782.9147 782.9949 782.9174 782.9192 782.9199 782.9197 782.9197
#> Mar 1989 786.7403 786.7882 786.7451 786.7472 786.7486 786.7480 786.7479
#> Apr 1989 790.6589 790.6573 790.6653 790.6674 790.6696 790.6683 790.6682
#> May 1989 794.7459 794.6952 794.7539 794.7560 794.7587 794.7570 794.7568
#> Jun 1989 799.1058 799.0183 799.1145 799.1163 799.1195 799.1173 799.1171
#> Jul 1989 803.4339 803.3153 803.4415 803.4423 803.4468 803.4432 803.4429
#> Aug 1989 807.6437 807.5067 807.6477 807.6467 807.6532 807.6473 807.6468
#> Sep 1989 811.4202 811.2643 811.4180 811.4148 811.4218 811.4147 811.4143
#> Oct 1989 814.4783 814.3014 814.4683 814.4629 814.4663 814.4617 814.4615
#> Nov 1989 816.7616 816.5834 816.7425 816.7352 816.7314 816.7326 816.7328
#> Dec 1989 818.1686 818.0304 818.1402 818.1311 818.1185 818.1269 818.1276
#> Jan 1990 818.8552 818.8067 818.8180 818.8072 818.7856 818.8015 818.8027
#> Feb 1990 819.1717 819.2611 819.1272 819.1149 819.0859 819.1079 819.1095
#> Mar 1990 819.1512 819.4135 819.1015 819.0878 819.0545 819.0799 819.0817
#> Apr 1990 818.9855 819.4334 818.9328 818.9180 818.8835 818.9096 818.9114
#> May 1990 818.8423 819.4655 818.7901 818.7748 818.7422 818.7666 818.7683
#> Jun 1990 818.7542 819.5289 818.7057 818.6907 818.6637 818.6832 818.6847
#> Jul 1990 818.6068 819.5001 818.5646 818.5507 818.5318 818.5445 818.5455
#> Aug 1990 818.3596 819.3090 818.3258 818.3138 818.3041 818.3092 818.3097
#> Sep 1990 818.0617 818.9821 818.0373 818.0277 818.0274 818.0248 818.0248
#> Oct 1990 818.1936 819.0198 818.1781 818.1710 818.1791 818.1698 818.1694
#> Nov 1990 818.9661 819.6617 818.9572 818.9526 818.9664 818.9525 818.9519
#> Dec 1990 820.3743 820.9248 820.3686 820.3663 820.3812 820.3670 820.3664
#> Jan 1991 822.6129 823.0248 822.6067 822.6067 822.6167 822.6073 822.6070
#> Feb 1991 825.5616 825.8629 825.5517 825.5538 825.5543 825.5538 825.5541
#> Mar 1991 828.8726 829.1028 828.8573 828.8616 828.8483 828.8605 828.8616
#> Apr 1991 832.5519 832.7536 832.5313 832.5379 832.5090 832.5356 832.5376
#> May 1991 836.5746 836.7801 836.5486 836.5570 836.5137 836.5536 836.5563
#> Jun 1991 840.5376 840.7502 840.5066 840.5157 840.4613 840.5113 840.5146
#> Jul 1991 844.4534 844.6573 844.4185 844.4278 844.3662 844.4226 844.4263
#> Aug 1991 848.3284 848.5079 848.2911 848.2999 848.2351 848.2943 848.2982
#> Sep 1991 851.9964 852.1315 851.9585 851.9668 851.9026 851.9611 851.9649
#> Oct 1991 855.3380 855.4245 855.3016 855.3091 855.2507 855.3038 855.3073
#> Nov 1991 858.0231 858.0643 857.9907 857.9971 857.9495 857.9926 857.9956
#> Dec 1991 859.9625 859.9620 859.9366 859.9417 859.9076 859.9384 859.9406
#> Jan 1992 861.4948 861.4610 861.4772 861.4810 861.4613 861.4790 861.4805
#> Feb 1992 862.7909 862.7353 862.7825 862.7849 862.7784 862.7843 862.7850
#> Mar 1992 864.1606 864.0947 864.1610 864.1624 864.1654 864.1628 864.1628
#> Apr 1992 865.8678 865.8033 865.8761 865.8766 865.8853 865.8778 865.8773
#> May 1992 867.9717 867.9181 867.9861 867.9859 867.9971 867.9876 867.9868
#> Jun 1992 870.3404 870.2991 870.3584 870.3578 870.3679 870.3596 870.3586
#> Jul 1992 872.7688 872.7309 872.7880 872.7873 872.7931 872.7887 872.7879
#> Aug 1992 875.3913 875.3413 875.4087 875.4080 875.4083 875.4090 875.4084
#> Sep 1992 878.4623 878.4227 878.4750 878.4743 878.4706 878.4747 878.4744
#> Oct 1992 881.7559 881.7571 881.7614 881.7606 881.7553 881.7605 881.7604
#> Nov 1992 884.8249 884.8621 884.8221 884.8215 884.8166 884.8209 884.8211
#> Dec 1992 887.4832 887.5358 887.4726 887.4723 887.4699 887.4714 887.4718
#> Jan 1993 889.4903 889.5310 889.4738 889.4738 889.4764 889.4729 889.4733
#> Feb 1993 890.6767 890.6742 890.6573 890.6575 890.6662 890.6570 890.6573
#> Mar 1993 891.0783 891.0035 891.0591 891.0596 891.0738 891.0594 891.0596
#> Apr 1993 890.7737 890.6100 890.7569 890.7572 890.7761 890.7575 890.7574
#> May 1993 889.8320 889.5774 889.8190 889.8189 889.8407 889.8196 889.8192
#> Jun 1993 888.7799 888.4497 888.7716 888.7713 888.7936 888.7722 888.7718
#> Jul 1993 888.0723 887.6979 888.0681 888.0677 888.0891 888.0689 888.0683
#> Aug 1993 887.9914 887.6162 887.9910 887.9905 888.0113 887.9919 887.9913
#> Sep 1993 888.8140 888.4745 888.8148 888.8143 888.8364 888.8159 888.8151
#> Oct 1993 890.4997 890.2134 890.4977 890.4973 890.5218 890.4989 890.4982
#> Nov 1993 893.0787 892.8514 893.0698 893.0700 893.0945 893.0713 893.0708
#> Dec 1993 896.8602 896.6862 896.8418 896.8431 896.8632 896.8436 896.8436
#> Jan 1994 901.6564 901.5210 901.6274 901.6302 901.6407 901.6296 901.6303
#> Feb 1994 907.1599 907.0405 907.1206 907.1251 907.1217 907.1232 907.1247
#> Mar 1994 913.1135 912.9886 913.0656 913.0719 913.0522 913.0687 913.0711
#> Apr 1994 918.9163 918.7704 918.8635 918.8711 918.8345 918.8669 918.8700
#> May 1994 923.9855 923.8088 923.9317 923.9401 923.8861 923.9349 923.9386
#> Jun 1994 928.1831 927.9798 928.1327 928.1410 928.0712 928.1352 928.1392
#> Jul 1994 931.6928 931.4838 931.6497 931.6573 931.5757 931.6512 931.6553
#> Aug 1994 934.6258 934.4385 934.5932 934.5995 934.5106 934.5933 934.5973
#> Sep 1994 936.7360 936.5870 936.7167 936.7215 936.6288 936.7155 936.7192
#> Oct 1994 938.2254 938.1128 938.2186 938.2221 938.1316 938.2163 938.2196
#> Nov 1994 939.6154 939.5421 939.6175 939.6197 939.5397 939.6144 939.6171
#> Dec 1994 941.1539 941.1278 941.1588 941.1596 941.1006 941.1551 941.1571
#> Jan 1995 942.7944 942.8213 942.7952 942.7944 942.7648 942.7912 942.7923
#> Feb 1995 944.5095 944.5977 944.4988 944.4964 944.5028 944.4948 944.4949
#> Mar 1995 946.2239 946.3781 946.1962 946.1920 946.2375 946.1921 946.1913
#> Apr 1995 948.0388 948.2535 947.9924 947.9868 948.0690 947.9887 947.9871
#> May 1995 950.1455 950.4077 950.0831 950.0765 950.1887 950.0802 950.0779
#> Jun 1995 952.5089 952.8036 952.4360 952.4286 952.5622 952.4338 952.4310
#> Jul 1995 954.9531 955.2617 954.8783 954.8702 955.0146 954.8766 954.8734
#> Aug 1995 957.4547 957.7589 957.3869 957.3783 957.5222 957.3854 957.3819
#> Sep 1995 959.7635 960.0445 959.7107 959.7019 959.8314 959.7085 959.7051
#> Oct 1995 961.7911 962.0293 961.7611 961.7523 961.8543 961.7580 961.7548
#> Nov 1995 963.7050 963.8838 963.6979 963.6899 963.7594 963.6942 963.6914
#> Dec 1995 965.4728 965.5782 965.4796 965.4731 965.5151 965.4759 965.4737
#> Jan 1996 966.9096 966.9309 966.9134 966.9094 966.9368 966.9108 966.9094
#> Feb 1996 967.9887 967.9320 967.9681 967.9675 967.9995 967.9675 967.9671
#> Mar 1996 968.4417 968.3213 968.3779 968.3810 968.4360 968.3800 968.3806
#> Apr 1996 968.2620 968.0915 968.1423 968.1491 968.2400 968.1471 968.1487
#> May 1996 967.9058 967.6971 967.7278 967.7379 967.8697 967.7351 967.7375
#> Jun 1996 967.5855 967.3501 967.3580 967.3709 967.5402 967.3676 967.3707
#> Jul 1996 967.3733 967.1169 967.1140 967.1290 967.3233 967.1253 967.1289
#> Aug 1996 967.3531 967.0801 967.0873 967.1038 967.3025 967.0990 967.1028
#> Sep 1996 967.8780 967.5921 967.6303 967.6472 967.8314 967.6413 967.6451
#> Oct 1996 969.1823 968.8967 968.9718 968.9879 969.1443 968.9812 968.9847
#> Nov 1996 971.1159 970.8477 970.9567 970.9706 971.0905 970.9638 970.9667
#> Dec 1996 973.4166 973.1800 973.3151 973.3258 973.4050 973.3200 973.3222
#> Jan 1997 976.1150 975.9230 976.0694 976.0764 976.1164 976.0726 976.0741
#> Feb 1997 979.2014 979.0538 979.2042 979.2073 979.2137 979.2065 979.2073
#> Mar 1997 982.5994 982.4883 982.6376 982.6373 982.6187 982.6398 982.6401
#> Apr 1997 986.1821 986.1041 986.2383 986.2357 986.2042 986.2415 986.2414
#> May 1997 989.5172 989.4791 989.5724 989.5683 989.5378 989.5768 989.5765
#> Jun 1997 992.3426 992.3556 992.3814 992.3767 992.3577 992.3869 992.3867
#> Jul 1997 994.5492 994.6270 994.5616 994.5572 994.5559 994.5675 994.5676
#> Aug 1997 996.0791 996.2278 996.0554 996.0515 996.0761 996.0616 996.0619
#> Sep 1997 996.9506 997.1735 996.8913 996.8881 996.9401 996.8976 996.8982
#> Oct 1997 997.4711 997.7708 997.3872 997.3847 997.4588 997.3927 997.3933
#> Nov 1997 997.7513 998.1343 997.6621 997.6602 997.7438 997.6650 997.6656
#> Dec 1997 998.0155 998.4885 997.9467 997.9452 998.0192 997.9452 997.9454
#> Jan 1998 998.6570 999.2261 998.6348 998.6334 998.6775 998.6269 998.6265
#> Feb 1998 999.8931 1000.5424 999.9432 999.9413 999.9339 999.9276 999.9263
#> Mar 1998 1001.9835 1002.6834 1002.1227 1002.1201 1002.0451 1002.0991 1002.0969
#> Apr 1998 1005.0764 1005.8027 1005.3056 1005.3021 1005.1562 1005.2746 1005.2715
#> May 1998 1008.9903 1009.7304 1009.2952 1009.2911 1009.0852 1009.2588 1009.2550
#> Jun 1998 1013.2493 1013.9961 1013.6015 1013.5974 1013.3523 1013.5622 1013.5579
#> Jul 1998 1017.5995 1018.3532 1017.9623 1017.9588 1017.7025 1017.9225 1017.9182
#> Aug 1998 1021.5090 1022.2730 1021.8449 1021.8427 1021.6041 1021.8066 1021.8025
#> Sep 1998 1024.8570 1025.6272 1025.1295 1025.1289 1024.9374 1025.0948 1025.0915
#> Oct 1998 1027.5075 1028.2755 1027.6897 1027.6907 1027.5692 1027.6609 1027.6585
#> Nov 1998 1029.6942 1030.4403 1029.7741 1029.7763 1029.7357 1029.7530 1029.7517
#> Dec 1998 1031.8001 1032.4971 1031.7818 1031.7847 1031.8228 1031.7697 1031.7695
#> Jan 1999 1034.3437 1034.9647 1034.2468 1034.2496 1034.3525 1034.2438 1034.2444
#> Feb 1999 1037.5733 1038.0997 1037.4264 1037.4285 1037.5738 1037.4315 1037.4327
#> Mar 1999 1041.7158 1042.1463 1041.5503 1041.5514 1041.7138 1041.5619 1041.5633
#> Apr 1999 1046.7352 1047.0717 1046.5822 1046.5820 1046.7367 1046.5980 1046.5992
#> May 1999 1052.2698 1052.5108 1052.1518 1052.1501 1052.2767 1052.1692 1052.1701
#> Jun 1999 1058.1408 1058.2850 1058.0682 1058.0652 1058.1533 1058.0852 1058.0856
#> Jul 1999 1063.9332 1063.9796 1063.9020 1063.8979 1063.9479 1063.9170 1063.9169
#> Aug 1999 1069.2066 1069.1664 1069.2080 1069.2031 1069.2219 1069.2212 1069.2207
#> Sep 1999 1073.5607 1073.4674 1073.5892 1073.5839 1073.5767 1073.5999 1073.5992
#> Oct 1999 1076.6767 1076.5659 1076.7246 1076.7194 1076.6936 1076.7316 1076.7307
#> Nov 1999 1078.5723 1078.4720 1078.6321 1078.6275 1078.5911 1078.6341 1078.6333
#> Dec 1999 1079.5984 1079.5259 1079.6647 1079.6611 1079.6221 1079.6606 1079.6602
#> Jan 2000 1079.7391 1079.6963 1079.8104 1079.8078 1079.7718 1079.7999 1079.8002
#> Feb 2000 1079.2153 1079.2028 1079.2907 1079.2888 1079.2623 1079.2743 1079.2754
#> Mar 2000 1078.3005 1078.3304 1078.3760 1078.3744 1078.3669 1078.3550 1078.3572
#> Apr 2000 1077.3353 1077.4185 1077.4098 1077.4077 1077.4256 1077.3861 1077.3891
#> May 2000 1076.8626 1076.9988 1076.9375 1076.9345 1076.9782 1076.9133 1076.9170
#> Jun 2000 1077.1213 1077.3003 1077.2003 1077.1959 1077.2610 1077.1771 1077.1813
#> Jul 2000 1078.3911 1078.5996 1078.4792 1078.4731 1078.5519 1078.4581 1078.4624
#> Aug 2000 1080.6682 1080.8852 1080.7693 1080.7616 1080.8442 1080.7504 1080.7544
#> Sep 2000 1084.0640 1084.2618 1084.1781 1084.1691 1084.2486 1084.1626 1084.1661
#> Oct 2000 1088.4251 1088.5728 1088.5496 1088.5400 1088.6098 1088.5394 1088.5423
#> Nov 2000 1093.4754 1093.5476 1093.6054 1093.5963 1093.6519 1093.6025 1093.6048
#> Dec 2000 1098.7293 1098.7143 1098.8577 1098.8498 1098.8907 1098.8636 1098.8652
#> Jan 2001 1103.7008 1103.5999 1103.8181 1103.8123 1103.8411 1103.8333 1103.8347
#> Feb 2001 1108.3076 1108.1342 1108.4053 1108.4023 1108.4230 1108.4294 1108.4307
#> Mar 2001 1112.7486 1112.5166 1112.8240 1112.8242 1112.8390 1112.8554 1112.8568
#> Apr 2001 1117.2454 1116.9675 1117.2995 1117.3025 1117.3109 1117.3356 1117.3373
#> May 2001 1122.0223 1121.7145 1122.0609 1122.0662 1122.0658 1122.0988 1122.1009
#> Jun 2001 1127.3207 1127.0056 1127.3523 1127.3593 1127.3482 1127.3899 1127.3923
#> Jul 2001 1133.2305 1132.9274 1133.2654 1133.2731 1133.2488 1133.3010 1133.3035
#> Aug 2001 1139.8794 1139.6076 1139.9264 1139.9340 1139.8957 1139.9590 1139.9612
#> Sep 2001 1147.1954 1146.9642 1147.2570 1147.2638 1147.2121 1147.2837 1147.2856
#> Oct 2001 1155.2386 1155.0511 1155.3139 1155.3194 1155.2564 1155.3330 1155.3343
#> Nov 2001 1163.9250 1163.7819 1164.0088 1164.0129 1163.9434 1164.0194 1164.0202
#> Dec 2001 1172.7701 1172.6680 1172.8541 1172.8566 1172.7869 1172.8564 1172.8567
#> Jan 2002 1181.2870 1181.2198 1181.3612 1181.3625 1181.2987 1181.3569 1181.3568
#> Feb 2002 1189.3612 1189.3271 1189.4155 1189.4158 1189.3652 1189.4064 1189.4062
#> Mar 2002 1196.8693 1196.8614 1196.8969 1196.8965 1196.8632 1196.8855 1196.8853
#> Apr 2002 1203.7218 1203.7299 1203.7198 1203.7194 1203.7044 1203.7083 1203.7084
#> May 2002 1209.9572 1209.9696 1209.9262 1209.9261 1209.9281 1209.9159 1209.9165
#> Jun 2002 1215.6979 1215.7095 1215.6429 1215.6432 1215.6594 1215.6342 1215.6351
#> Jul 2002 1221.4160 1221.4260 1221.3453 1221.3460 1221.3717 1221.3373 1221.3385
#> Aug 2002 1227.4468 1227.4486 1227.3719 1227.3730 1227.4018 1227.3645 1227.3658
#> Sep 2002 1234.0058 1233.9933 1233.9371 1233.9385 1233.9646 1233.9307 1233.9318
#> Oct 2002 1240.8697 1240.8474 1240.8137 1240.8152 1240.8362 1240.8080 1240.8086
#> Nov 2002 1247.5138 1247.4997 1247.4719 1247.4728 1247.4910 1247.4653 1247.4652
#> Dec 2002 1253.5881 1253.6056 1253.5571 1253.5567 1253.5766 1253.5476 1253.5466
#> Jan 2003 1259.4612 1259.5315 1259.4349 1259.4326 1259.4594 1259.4205 1259.4189
#> Feb 2003 1265.4746 1265.6061 1265.4473 1265.4428 1265.4784 1265.4265 1265.4246
#> Mar 2003 1271.8273 1272.0109 1271.7941 1271.7880 1271.8308 1271.7666 1271.7650
#> Apr 2003 1278.6422 1278.8598 1278.6006 1278.5940 1278.6412 1278.5677 1278.5668
#> May 2003 1285.7602 1285.9916 1285.7103 1285.7044 1285.7532 1285.6743 1285.6745
#> Jun 2003 1292.8267 1293.0454 1292.7699 1292.7657 1292.8112 1292.7328 1292.7342
#> Jul 2003 1299.4941 1299.6778 1299.4340 1299.4317 1299.4699 1299.3974 1299.3997
#> Aug 2003 1305.6783 1305.8153 1305.6182 1305.6178 1305.6464 1305.5824 1305.5850
#> Sep 2003 1311.5158 1311.5992 1311.4591 1311.4604 1311.4778 1311.4250 1311.4270
#> Oct 2003 1317.1095 1317.1350 1317.0597 1317.0623 1317.0670 1317.0284 1317.0291
#> Nov 2003 1322.5276 1322.4943 1322.4874 1322.4912 1322.4821 1322.4605 1322.4597
#> Dec 2003 1328.2046 1328.1192 1328.1760 1328.1807 1328.1584 1328.1551 1328.1532
#> Jan 2004 1334.5608 1334.4425 1334.5445 1334.5495 1334.5183 1334.5309 1334.5285
#> Feb 2004 1341.3891 1341.2609 1341.3843 1341.3892 1341.3547 1341.3786 1341.3769
#> Mar 2004 1348.2735 1348.1580 1348.2785 1348.2831 1348.2509 1348.2809 1348.2810
#> Apr 2004 1354.8492 1354.7674 1354.8605 1354.8640 1354.8400 1354.8696 1354.8724
#> May 2004 1361.3516 1361.3203 1361.3656 1361.3670 1361.3562 1361.3793 1361.3850
#> Jun 2004 1368.1578 1368.1821 1368.1728 1368.1722 1368.1766 1368.1893 1368.1973
#> Jul 2004 1375.3006 1375.3677 1375.3169 1375.3154 1375.3323 1375.3355 1375.3445
#> Aug 2004 1382.5928 1382.6844 1382.6103 1382.6094 1382.6344 1382.6296 1382.6364
#> Sep 2004 1389.2640 1389.3744 1389.2817 1389.2825 1389.3143 1389.2988 1389.3007
#> Oct 2004 1394.5776 1394.7110 1394.5954 1394.5980 1394.6380 1394.6072 1394.6025
#> Nov 2004 1398.0840 1398.2419 1398.1029 1398.1069 1398.1552 1398.1073 1398.0963
#> Dec 2004 1399.8494 1400.0304 1399.8713 1399.8761 1399.9312 1399.8675 1399.8523
#> Jan 2005 1400.1116 1400.3096 1400.1380 1400.1428 1400.2024 1400.1269 1400.1109
#> Feb 2005 1399.1590 1399.3652 1399.1909 1399.1950 1399.2559 1399.1747 1399.1618
#> Mar 2005 1397.2070 1397.4139 1397.2446 1397.2472 1397.3071 1397.2261 1397.2200
#> Apr 2005 1394.4370 1394.6418 1394.4798 1394.4804 1394.5386 1394.4622 1394.4651
#> May 2005 1390.8190 1391.0141 1390.8640 1390.8621 1390.9165 1390.8494 1390.8620
#> Jun 2005 1386.9151 1387.0941 1386.9588 1386.9542 1387.0029 1386.9478 1386.9687
#> Jul 2005 1383.2933 1383.4610 1383.3327 1383.3252 1383.3697 1383.3220 1383.3473
#> Aug 2005 1380.4094 1380.5713 1380.4405 1380.4305 1380.4730 1380.4272 1380.4504
#> Sep 2005 1378.6074 1378.7665 1378.6281 1378.6164 1378.6587 1378.6098 1378.6245
#> Oct 2005 1378.3538 1378.5125 1378.3636 1378.3509 1378.3946 1378.3388 1378.3409
#> Nov 2005 1380.2003 1380.3609 1380.2009 1380.1883 1380.2343 1380.1689 1380.1564
#> Dec 2005 1383.9770 1384.1405 1383.9715 1383.9597 1384.0087 1383.9319 1383.9049
#> Jan 2006 1388.8647 1389.0251 1388.8566 1388.8468 1388.8967 1388.8103 1388.7706
#> Feb 2006 1394.1703 1394.3189 1394.1636 1394.1565 1394.2040 1394.1119 1394.0659
#> Mar 2006 1399.5519 1399.6826 1399.5495 1399.5451 1399.5878 1399.4942 1399.4480
#> Apr 2006 1404.7456 1404.8523 1404.7489 1404.7471 1404.7826 1404.6912 1404.6485
#> May 2006 1409.7510 1409.8334 1409.7626 1409.7635 1409.7907 1409.7026 1409.6633
#> Jun 2006 1414.3115 1414.3695 1414.3324 1414.3362 1414.3541 1414.2704 1414.2318
#> Jul 2006 1418.0335 1418.0617 1418.0624 1418.0695 1418.0763 1417.9989 1417.9557
#> Aug 2006 1420.9551 1420.9506 1420.9854 1420.9959 1420.9920 1420.9215 1420.8651
#> Sep 2006 1423.0305 1422.9871 1423.0533 1423.0670 1423.0528 1422.9948 1422.9203
#> Oct 2006 1424.7731 1424.6757 1424.7794 1424.7963 1424.7696 1424.7352 1424.6429
#> Nov 2006 1426.9598 1426.7950 1426.9427 1426.9622 1426.9207 1426.9227 1426.8190
#> Dec 2006 1430.2349 1429.9993 1430.1910 1430.2120 1430.1554 1430.2034 1430.0996
#> Jan 2007 1434.9980 1434.6925 1434.9286 1434.9499 1434.8779 1434.9784 1434.8886
#> Feb 2007 1441.4072 1441.0410 1441.3189 1441.3396 1441.2531 1441.4071 1441.3509
#> Mar 2007 1449.2998 1448.8895 1449.2025 1449.2216 1449.1231 1449.3246 1449.3168
#> Apr 2007 1458.6758 1458.2378 1458.5792 1458.5960 1458.4876 1458.7256 1458.7706
#> May 2007 1468.9605 1468.5131 1468.8745 1468.8893 1468.7742 1469.0323 1469.1229
#> Jun 2007 1479.5824 1479.1588 1479.5178 1479.5305 1479.4166 1479.6699 1479.7890
#> Jul 2007 1489.7014 1489.3396 1489.6651 1489.6757 1489.5731 1489.7949 1489.9189
#> Aug 2007 1498.6975 1498.4224 1498.6945 1498.7031 1498.6177 1498.7932 1498.9046
#> Sep 2007 1506.5787 1506.4027 1506.6060 1506.6128 1506.5491 1506.6674 1506.7475
#> Oct 2007 1513.1700 1513.0959 1513.2149 1513.2200 1513.1829 1513.2350 1513.2628
#> Nov 2007 1518.2415 1518.2639 1518.2840 1518.2878 1518.2821 1518.2611 1518.2163
#> Dec 2007 1521.7078 1521.8099 1521.7258 1521.7289 1521.7569 1521.6617 1521.5316
#> Jan 2008 1523.6687 1523.8308 1523.6434 1523.6463 1523.7084 1523.5427 1523.3261
#> Feb 2008 1524.3275 1524.5320 1524.2497 1524.2524 1524.3469 1524.1188 1523.8362
#> Mar 2008 1524.0349 1524.2669 1523.9040 1523.9066 1524.0296 1523.7496 1523.4253
#> Apr 2008 1523.3063 1523.5576 1523.1320 1523.1347 1523.2809 1522.9603 1522.6159
#> May 2008 1522.8591 1523.1214 1522.6585 1522.6617 1522.8239 1522.4757 1522.1265
#> Jun 2008 1523.1633 1523.4167 1522.9467 1522.9521 1523.1219 1522.7638 1522.4139
#> Jul 2008 1524.8940 1525.1178 1524.6666 1524.6744 1524.8428 1524.4989 1524.1476
#> Aug 2008 1528.7483 1528.9329 1528.5183 1528.5290 1528.6880 1528.3745 1528.0116
#> Sep 2008 1534.8039 1534.9519 1534.5941 1534.6062 1534.7456 1534.4697 1534.0934
#> Oct 2008 1542.9854 1543.1137 1542.8289 1542.8401 1542.9497 1542.7077 1542.3263
#> Nov 2008 1552.4493 1552.5887 1552.3827 1552.3897 1552.4627 1552.2413 1551.8742
#> Dec 2008 1562.1736 1562.3528 1562.2288 1562.2288 1562.2604 1562.0433 1561.7180
#> Jan 2009 1571.4073 1571.6499 1571.6046 1571.5958 1571.5858 1571.3561 1571.1031
#> Feb 2009 1579.3154 1579.6382 1579.6504 1579.6329 1579.5884 1579.3274 1579.1455
#> Mar 2009 1585.3799 1585.7804 1585.8343 1585.8102 1585.7397 1585.4380 1585.3234
#> Apr 2009 1589.1690 1589.6271 1589.7180 1589.6912 1589.6027 1589.2643 1589.2301
#> May 2009 1590.4973 1590.9761 1591.1168 1591.0936 1590.9930 1590.6362 1590.7113
#> Jun 2009 1589.5301 1589.9830 1590.1954 1590.1809 1590.0696 1589.7239 1589.9464
#> Jul 2009 1586.4598 1586.8406 1587.1440 1587.1424 1587.0196 1586.7191 1587.1207
#> Aug 2009 1581.6457 1581.9091 1582.3091 1582.3236 1582.1904 1581.9641 1582.5457
#> Sep 2009 1575.9543 1576.0779 1576.5497 1576.5756 1576.4386 1576.2993 1577.0365
#> Oct 2009 1569.8578 1569.8459 1570.3505 1570.3796 1570.2466 1570.1966 1571.0556
#> Nov 2009 1563.9655 1563.8387 1564.3410 1564.3656 1564.2412 1564.2748 1565.2188
#> Dec 2009 1558.6754 1558.4686 1558.9412 1558.9558 1558.8417 1558.9453 1559.9389
#> Jan 2010 1554.3727 1554.1340 1554.5542 1554.5564 1554.4540 1554.6059 1555.6176
#> Feb 2010 1551.2713 1551.0380 1551.4045 1551.3963 1551.3027 1551.4800 1552.4960
#> Mar 2010 1549.3265 1549.1271 1549.4465 1549.4331 1549.3460 1549.5263 1550.5164
#> Apr 2010 1548.4140 1548.2652 1548.5462 1548.5350 1548.4547 1548.6202 1549.5425
#> May 2010 1548.2945 1548.2131 1548.4376 1548.4318 1548.3624 1548.5018 1549.3071
#> Jun 2010 1548.8079 1548.7935 1548.9477 1548.9502 1548.8960 1549.0064 1549.6472
#> Jul 2010 1549.8850 1549.9218 1550.0137 1550.0281 1549.9903 1550.0719 1550.5119
#> Aug 2010 1550.8547 1550.9145 1550.9679 1550.9939 1550.9706 1551.0211 1551.2584
#> Sep 2010 1551.0427 1551.0878 1551.1335 1551.1624 1551.1497 1551.1724 1551.2317
#> Oct 2010 1550.0247 1550.0055 1550.0894 1550.1179 1550.1116 1550.1132 1550.0192
#> Nov 2010 1547.4822 1547.3364 1547.5227 1547.5571 1547.5509 1547.5421 1547.3103
#> Dec 2010 1543.6202 1543.2923 1543.6430 1543.6972 1543.6864 1543.6771 1543.3097
#> Jan 2011 1538.6126 1538.0662 1538.6270 1538.7189 1538.7009 1538.6983 1538.1884
#> Feb 2011 1532.8815 1532.1060 1532.9034 1533.0501 1533.0227 1533.0334 1532.3752
#> Mar 2011 1526.9936 1526.0045 1527.0476 1527.2625 1527.2230 1527.2545 1526.4908
#> Apr 2011 1521.1437 1519.9829 1521.2477 1521.5365 1521.4842 1521.5395 1520.7272
#> May 2011 1515.6266 1514.3502 1515.7870 1516.1451 1516.0800 1516.1574 1515.3571
#> Jun 2011 1510.4629 1509.1510 1510.6652 1511.0743 1511.0007 1511.0907 1510.3549
#> Jul 2011 1505.8140 1504.5552 1506.0193 1506.4517 1506.3774 1506.4662 1505.8320
#> Aug 2011 1502.0680 1500.9517 1502.2313 1502.6490 1502.5814 1502.6563 1502.1534
#> Sep 2011 1499.4658 1498.5811 1499.5363 1499.8906 1499.8364 1499.8886 1499.5374
#> Oct 2011 1498.2218 1497.6058 1498.1607 1498.4175 1498.3796 1498.4055 1498.2034
#> Nov 2011 1498.8739 1498.5058 1498.6639 1498.8089 1498.7879 1498.7863 1498.7141
#> Dec 2011 1501.5826 1501.3941 1501.2319 1501.2738 1501.2694 1501.2400 1501.2693
#> Jan 2012 1505.9269 1505.8115 1505.4686 1505.4371 1505.4454 1505.3916 1505.4907
#> Feb 2012 1511.3376 1511.1868 1510.8251 1510.7635 1510.7815 1510.7111 1510.8312
#> Mar 2012 1517.0012 1516.7277 1516.4859 1516.4447 1516.4726 1516.3909 1516.4778
#> Apr 2012 1522.1945 1521.7453 1521.7219 1521.7465 1521.7832 1521.6944 1521.7165
#> May 2012 1526.4768 1525.8400 1526.0851 1526.2065 1526.2502 1526.1576 1526.1120
#> Jun 2012 1529.6364 1528.8341 1529.3551 1529.5841 1529.6325 1529.5397 1529.4519
#> Jul 2012 1531.4146 1530.5058 1531.2449 1531.5636 1531.6131 1531.5251 1531.4417
#> Aug 2012 1531.7940 1530.8679 1531.7140 1532.0737 1532.1190 1532.0422 1532.0244
#> Sep 2012 1531.0132 1530.1696 1530.9928 1531.3587 1531.3910 1531.3346 1531.4099
#> Oct 2012 1529.3751 1528.6926 1529.3649 1529.6807 1529.6923 1529.6615 1529.8372
#> Nov 2012 1527.3388 1526.8645 1527.2546 1527.4542 1527.4321 1527.4208 1527.6862
#> Dec 2012 1525.3515 1525.0987 1525.0870 1525.1091 1525.0519 1525.0280 1525.3564
#> Jan 2013 1523.8598 1523.8044 1523.3157 1523.1145 1523.0338 1522.9658 1523.3204
#> Feb 2013 1523.0495 1523.1399 1522.1585 1521.7160 1521.6327 1521.4971 1521.8466
#> Mar 2013 1522.8255 1522.9890 1521.5649 1520.8998 1520.8408 1520.6253 1520.9517
#> Apr 2013 1523.1377 1523.3040 1521.5467 1520.7062 1520.6969 1520.4085 1520.6904
#> May 2013 1523.7595 1523.8826 1521.9296 1520.9783 1521.0387 1520.7019 1520.9177
#> Jun 2013 1524.1891 1524.2662 1522.2433 1521.2475 1521.3894 1521.0418 1521.1743
#> Jul 2013 1524.2188 1524.2876 1522.2848 1521.2985 1521.5152 1521.2115 1521.2428
#> Aug 2013 1523.6454 1523.7368 1521.7721 1520.8203 1521.0957 1520.8853 1520.7976
#> Sep 2013 1522.5557 1522.6349 1520.7439 1519.7980 1520.1095 1520.0225 1519.8126
#> Oct 2013 1521.1620 1521.1999 1519.4462 1518.4530 1518.7716 1518.8123 1518.5024
#> Nov 2013 1519.5073 1519.5189 1517.9307 1516.8799 1517.1497 1517.2955 1516.9236
#> Dec 2013 1517.3291 1517.3695 1515.9261 1514.8643 1515.0396 1515.2109 1514.8219
#> Jan 2014 1514.7305 1514.8872 1513.5289 1512.5407 1512.6010 1512.7201 1512.3638
#> Feb 2014 1511.9238 1512.2952 1510.9431 1510.1337 1510.0828 1510.0950 1509.8216
#> Mar 2014 1509.2580 1509.9437 1508.5330 1507.9925 1507.8536 1507.7356 1507.5712
#> Apr 2014 1507.3091 1508.3799 1506.8710 1506.6681 1506.4840 1506.2478 1506.2006
#> May 2014 1506.3614 1507.8372 1506.2139 1506.3885 1506.2144 1505.9028 1505.9776
#> Jun 2014 1506.3571 1508.1958 1506.4676 1507.0184 1506.9078 1506.5888 1506.7881
#> Jul 2014 1507.3617 1509.4494 1507.6624 1508.4746 1508.4589 1508.2111 1508.5258
#> Aug 2014 1509.3054 1511.4553 1509.5860 1510.5124 1510.6073 1510.5025 1510.9124
#> Sep 2014 1512.0383 1514.0791 1511.9850 1512.8502 1513.0534 1513.1391 1513.6163
#> Oct 2014 1515.6065 1517.3772 1514.9892 1515.6021 1515.8934 1516.1743 1516.7010
#> Nov 2014 1519.6885 1521.0416 1518.4154 1518.7397 1519.0376 1519.4756 1520.0406
#> Dec 2014 1524.1601 1524.9988 1522.2858 1522.4311 1522.6695 1523.1261 1523.7266
#> Jan 2015 1528.8926 1529.1963 1526.6198 1526.7934 1526.9301 1527.2860 1527.9403
#> Feb 2015 1533.7853 1533.6150 1531.4268 1531.8843 1531.9001 1532.0773 1532.8022
#> Mar 2015 1538.9684 1538.4607 1536.8840 1537.8695 1537.7777 1537.7467 1538.5424
#> Apr 2015 1544.4766 1543.8353 1543.0115 1544.6873 1544.5294 1544.3217 1545.1575
#> May 2015 1550.2364 1549.6846 1549.6431 1552.0451 1551.8797 1551.5809 1552.4002
#> Jun 2015 1556.4282 1556.1537 1556.7991 1559.8098 1559.7001 1559.4325 1560.1613
#> Jul 2015 1562.9105 1563.0221 1564.1548 1567.5963 1567.6262 1567.4986 1568.0932
#> Aug 2015 1569.4911 1569.9314 1571.4838 1575.0640 1575.2861 1575.3856 1575.8122
#> Sep 2015 1575.8446 1576.4918 1578.4243 1581.8571 1582.2581 1582.6426 1582.8742
#> Oct 2015 1581.4213 1582.1795 1584.1405 1587.1958 1587.6925 1588.3734 1588.3813
#> Nov 2015 1585.9131 1586.7176 1588.1095 1590.3722 1590.9633 1591.8933 1591.6594
#> Dec 2015 1589.2958 1590.0819 1590.2464 1591.0996 1591.7208 1592.9422 1592.4641
#> Jan 2016 1591.8024 1592.4704 1590.7797 1589.5668 1590.0355 1591.5221 1590.8256
#> Feb 2016 1593.6729 1594.0733 1590.0062 1586.1601 1586.2277 1587.8071 1586.9280
#> Mar 2016 1595.3013 1595.2204 1588.4281 1581.5788 1580.9693 1582.3711 1581.3669
#> Apr 2016 1596.8514 1596.0060 1586.3346 1576.3809 1574.8331 1575.7163 1574.6802
#> May 2016 1598.6259 1596.7108 1584.1926 1571.2886 1568.5996 1568.6012 1567.6201
#> Jun 2016 1600.9244 1597.6407 1582.4482 1566.9617 1563.0167 1561.8090 1560.9527
#> Jul 2016 NaN 1598.9783 1581.3494 1563.8089 1558.5877 1555.9353 1555.2372
#> Aug 2016 NaN NaN 1581.0278 1562.1235 1555.7160 1551.4860 1550.9694
#> Sep 2016 NaN NaN NaN 1561.9945 1554.5706 1548.7286 1548.4132
#> Oct 2016 NaN NaN NaN NaN 1555.0675 1547.6671 1547.5652
#> Nov 2016 NaN NaN NaN NaN NaN 1547.9725 1548.0925
#> Dec 2016 NaN NaN NaN NaN NaN NaN 1549.6990
#> Jan 2017 NaN NaN NaN NaN NaN NaN NaN
#> Feb 2017 NaN NaN NaN NaN NaN NaN NaN
#> Mar 2017 NaN NaN NaN NaN NaN NaN NaN
#> Apr 2017 NaN NaN NaN NaN NaN NaN NaN
#> May 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jun 2017 NaN NaN NaN NaN NaN NaN NaN
#> Jul 2017 NaN NaN NaN NaN NaN NaN NaN
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 85 Series 86 Series 87 Series 88 Series 89 Series 90 Series 91
#> Apr 1982 482.7707 482.7706 482.7784 482.7380 482.7373 482.7363 482.7351
#> May 1982 483.8888 483.8888 483.8960 483.8628 483.8614 483.8604 483.8576
#> Jun 1982 485.3324 485.3324 485.3373 485.3170 485.3149 485.3139 485.3097
#> Jul 1982 486.2485 486.2485 486.2514 486.2421 486.2403 486.2396 486.2361
#> Aug 1982 487.4007 487.4007 487.4017 487.4031 487.4012 487.4007 487.3968
#> Sep 1982 488.7864 488.7864 488.7865 488.7950 488.7928 488.7923 488.7877
#> Oct 1982 490.3865 490.3865 490.3868 490.3970 490.3944 490.3938 490.3885
#> Nov 1982 492.0722 492.0722 492.0743 492.0787 492.0760 492.0753 492.0699
#> Dec 1982 493.8325 493.8325 493.8373 493.8319 493.8291 493.8282 493.8226
#> Jan 1983 495.5373 495.5373 495.5452 495.5273 495.5245 495.5234 495.5179
#> Feb 1983 497.2474 497.2473 497.2581 497.2280 497.2255 497.2241 497.2192
#> Mar 1983 499.0394 499.0393 499.0521 499.0129 499.0108 499.0094 499.0053
#> Apr 1983 500.8898 500.8898 500.9033 500.8602 500.8586 500.8573 500.8545
#> May 1983 502.9627 502.9627 502.9754 502.9348 502.9339 502.9328 502.9312
#> Jun 1983 505.3215 505.3215 505.3322 505.2994 505.2993 505.2985 505.2984
#> Jul 1983 507.9866 507.9866 507.9943 507.9736 507.9741 507.9738 507.9752
#> Aug 1983 510.9386 510.9386 510.9426 510.9364 510.9376 510.9376 510.9399
#> Sep 1983 514.2331 514.2331 514.2335 514.2418 514.2431 514.2435 514.2461
#> Oct 1983 517.9746 517.9746 517.9720 517.9926 517.9936 517.9942 517.9962
#> Nov 1983 522.2245 522.2245 522.2198 522.2486 522.2490 522.2496 522.2503
#> Dec 1983 526.8987 526.8987 526.8933 526.9245 526.9241 526.9247 526.9236
#> Jan 1984 531.9135 531.9135 531.9084 531.9378 531.9365 531.9368 531.9338
#> Feb 1984 537.0539 537.0539 537.0497 537.0752 537.0728 537.0729 537.0680
#> Mar 1984 542.0768 542.0768 542.0734 542.0952 542.0921 542.0920 542.0855
#> Apr 1984 546.9337 546.9337 546.9304 546.9520 546.9484 546.9482 546.9408
#> May 1984 551.6388 551.6387 551.6352 551.6594 551.6556 551.6553 551.6474
#> Jun 1984 556.1408 556.1408 556.1367 556.1645 556.1608 556.1606 556.1530
#> Jul 1984 560.6064 560.6064 560.6017 560.6328 560.6297 560.6295 560.6230
#> Aug 1984 565.3305 565.3305 565.3257 565.3575 565.3553 565.3554 565.3507
#> Sep 1984 570.3981 570.3981 570.3937 570.4221 570.4213 570.4216 570.4198
#> Oct 1984 576.0926 576.0926 576.0891 576.1112 576.1118 576.1123 576.1136
#> Nov 1984 582.4943 582.4943 582.4920 582.5053 582.5074 582.5080 582.5121
#> Dec 1984 589.5911 589.5911 589.5905 589.5922 589.5953 589.5961 589.6024
#> Jan 1985 597.3943 597.3943 597.3955 597.3844 597.3883 597.3891 597.3969
#> Feb 1985 605.6716 605.6717 605.6749 605.6507 605.6550 605.6558 605.6647
#> Mar 1985 614.0621 614.0621 614.0673 614.0314 614.0361 614.0368 614.0463
#> Apr 1985 622.2616 622.2616 622.2691 622.2205 622.2252 622.2258 622.2356
#> May 1985 629.8685 629.8686 629.8786 629.8177 629.8225 629.8229 629.8328
#> Jun 1985 636.2989 636.2990 636.3106 636.2436 636.2485 636.2488 636.2589
#> Jul 1985 641.2555 641.2555 641.2665 641.2061 641.2109 641.2113 641.2213
#> Aug 1985 644.5072 644.5072 644.5144 644.4767 644.4816 644.4823 644.4924
#> Sep 1985 646.3488 646.3489 646.3488 646.3517 646.3566 646.3578 646.3676
#> Oct 1985 647.1480 647.1480 647.1376 647.1958 647.2005 647.2024 647.2116
#> Nov 1985 647.5629 647.5629 647.5405 647.6616 647.6661 647.6687 647.6772
#> Dec 1985 648.3657 648.3657 648.3306 648.5168 648.5210 648.5244 648.5321
#> Jan 1986 650.0156 650.0156 649.9689 650.2140 650.2178 650.2219 650.2286
#> Feb 1986 652.6678 652.6679 652.6120 652.9018 652.9049 652.9094 652.9144
#> Mar 1986 656.4417 656.4418 656.3805 656.6955 656.6972 656.7018 656.7040
#> Apr 1986 661.3562 661.3562 661.2939 661.6117 661.6113 661.6154 661.6133
#> May 1986 667.1761 667.1761 667.1169 667.4158 667.4128 667.4160 667.4087
#> Jun 1986 673.6289 673.6290 673.5763 673.8380 673.8321 673.8342 673.8211
#> Jul 1986 680.4006 680.4005 680.3572 680.5687 680.5598 680.5605 680.5417
#> Aug 1986 686.9153 686.9152 686.8829 687.0361 687.0247 687.0240 687.0002
#> Sep 1986 692.8028 692.8028 692.7816 692.8770 692.8635 692.8615 692.8339
#> Oct 1986 697.8622 697.8621 697.8513 697.8945 697.8799 697.8769 697.8470
#> Nov 1986 701.7427 701.7426 701.7407 701.7407 701.7260 701.7224 701.6926
#> Dec 1986 704.5187 704.5186 704.5234 704.4923 704.4786 704.4747 704.4471
#> Jan 1987 706.3638 706.3637 706.3730 706.3218 706.3101 706.3065 706.2832
#> Feb 1987 707.5671 707.5670 707.5789 707.5159 707.5071 707.5040 707.4865
#> Mar 1987 708.7100 708.7100 708.7236 708.6526 708.6469 708.6444 708.6332
#> Apr 1987 710.2013 710.2013 710.2160 710.1388 710.1362 710.1345 710.1294
#> May 1987 712.0922 712.0922 712.1066 712.0292 712.0292 712.0282 712.0287
#> Jun 1987 714.6447 714.6447 714.6576 714.5861 714.5881 714.5877 714.5921
#> Jul 1987 717.9985 717.9985 718.0088 717.9491 717.9521 717.9522 717.9585
#> Aug 1987 722.1817 722.1817 722.1891 722.1459 722.1488 722.1491 722.1551
#> Sep 1987 727.2169 727.2169 727.2217 727.1978 727.1998 727.2000 727.2042
#> Oct 1987 732.7214 732.7214 732.7245 732.7179 732.7189 732.7189 732.7210
#> Nov 1987 738.3743 738.3743 738.3768 738.3828 738.3827 738.3825 738.3824
#> Dec 1987 743.6634 743.6634 743.6664 743.6765 743.6755 743.6751 743.6731
#> Jan 1988 748.0504 748.0504 748.0550 748.0582 748.0564 748.0556 748.0521
#> Feb 1988 751.6501 751.6500 751.6567 751.6443 751.6419 751.6408 751.6359
#> Mar 1988 754.7325 754.7325 754.7408 754.7088 754.7059 754.7047 754.6992
#> Apr 1988 757.4161 757.4160 757.4241 757.3760 757.3735 757.3723 757.3673
#> May 1988 759.8219 759.8219 759.8278 759.7719 759.7700 759.7691 759.7655
#> Jun 1988 762.1870 762.1870 762.1897 762.1331 762.1320 762.1315 762.1294
#> Jul 1988 764.5263 764.5263 764.5258 764.4764 764.4761 764.4760 764.4753
#> Aug 1988 766.9171 766.9171 766.9139 766.8802 766.8803 766.8805 766.8805
#> Sep 1988 769.2836 769.2837 769.2788 769.2688 769.2691 769.2695 769.2700
#> Oct 1988 771.5367 771.5367 771.5318 771.5482 771.5486 771.5490 771.5497
#> Nov 1988 773.9207 773.9207 773.9174 773.9559 773.9562 773.9565 773.9569
#> Dec 1988 776.5694 776.5694 776.5687 776.6176 776.6176 776.6176 776.6176
#> Jan 1989 779.5259 779.5259 779.5285 779.5725 779.5721 779.5718 779.5711
#> Feb 1989 782.9197 782.9197 782.9253 782.9496 782.9489 782.9483 782.9470
#> Mar 1989 786.7474 786.7474 786.7550 786.7478 786.7471 786.7464 786.7453
#> Apr 1989 790.6669 790.6669 790.6756 790.6294 790.6291 790.6285 790.6280
#> May 1989 794.7548 794.7548 794.7644 794.6753 794.6753 794.6746 794.6748
#> Jun 1989 799.1145 799.1145 799.1238 798.9997 799.0001 798.9995 799.0003
#> Jul 1989 803.4392 803.4392 803.4468 803.3048 803.3059 803.3057 803.3080
#> Aug 1989 807.6420 807.6420 807.6454 807.5153 807.5175 807.5178 807.5223
#> Sep 1989 811.4093 811.4093 811.4055 811.3216 811.3246 811.3257 811.3317
#> Oct 1989 814.4589 814.4589 814.4449 814.4433 814.4462 814.4478 814.4534
#> Nov 1989 816.7349 816.7349 816.7082 816.8166 816.8185 816.8208 816.8241
#> Dec 1989 818.1352 818.1352 818.0951 818.3261 818.3267 818.3296 818.3299
#> Jan 1990 818.8159 818.8159 818.7628 819.1143 819.1135 819.1169 819.1143
#> Feb 1990 819.1271 819.1271 819.0630 819.5168 819.5151 819.5190 819.5142
#> Mar 1990 819.1016 819.1016 819.0297 819.5552 819.5533 819.5576 819.5521
#> Apr 1990 818.9318 818.9318 818.8555 819.4180 819.4164 819.4212 819.4163
#> May 1990 818.7872 818.7873 818.7117 819.2710 819.2701 819.2751 819.2717
#> Jun 1990 818.7000 818.7001 818.6305 819.1498 819.1501 819.1550 819.1542
#> Jul 1990 818.5558 818.5559 818.4968 818.9473 818.9490 818.9536 818.9558
#> Aug 1990 818.3146 818.3147 818.2692 818.6288 818.6317 818.6357 818.6408
#> Sep 1990 818.0243 818.0243 817.9940 818.2474 818.2514 818.2546 818.2622
#> Oct 1990 818.1643 818.1644 818.1485 818.2957 818.3004 818.3028 818.3119
#> Nov 1990 818.9441 818.9442 818.9398 819.0134 819.0180 819.0196 819.0289
#> Dec 1990 820.3590 820.3590 820.3616 820.4263 820.4298 820.4305 820.4376
#> Jan 1991 822.6037 822.6037 822.6079 822.7463 822.7473 822.7472 822.7492
#> Feb 1991 825.5579 825.5579 825.5593 825.8495 825.8469 825.8461 825.8409
#> Mar 1991 828.8749 828.8748 828.8703 829.3706 829.3635 829.3619 829.3476
#> Apr 1991 832.5613 832.5612 832.5502 833.2842 833.2723 833.2698 833.2457
#> May 1991 836.5893 836.5892 836.5711 837.5314 837.5153 837.5122 837.4794
#> Jun 1991 840.5546 840.5545 840.5295 841.6790 841.6599 841.6565 841.6176
#> Jul 1991 844.4705 844.4704 844.4400 845.7153 845.6947 845.6912 845.6489
#> Aug 1991 848.3443 848.3442 848.3103 849.6368 849.6156 849.6122 849.5688
#> Sep 1991 852.0107 852.0106 851.9760 853.2735 853.2527 853.2495 853.2069
#> Oct 1991 855.3497 855.3496 855.3177 856.5079 856.4888 856.4860 856.4468
#> Nov 1991 858.0312 858.0312 858.0053 859.0137 858.9977 858.9953 858.9624
#> Dec 1991 859.9676 859.9675 859.9502 860.7215 860.7093 860.7074 860.6824
#> Jan 1992 861.4976 861.4975 861.4898 861.9967 861.9887 861.9874 861.9711
#> Feb 1992 862.7925 862.7925 862.7938 863.0425 863.0387 863.0378 863.0300
#> Mar 1992 864.1625 864.1625 864.1709 864.1995 864.1991 864.1987 864.1979
#> Apr 1992 865.8713 865.8713 865.8845 865.7511 865.7532 865.7531 865.7574
#> May 1992 867.9770 867.9771 867.9929 867.7624 867.7661 867.7662 867.7740
#> Jun 1992 870.3477 870.3477 870.3632 870.0979 870.1022 870.1025 870.1115
#> Jul 1992 872.7781 872.7782 872.7909 872.5374 872.5414 872.5417 872.5500
#> Aug 1992 875.4016 875.4016 875.4097 875.2001 875.2029 875.2032 875.2092
#> Sep 1992 878.4708 878.4708 878.4738 878.3251 878.3268 878.3271 878.3305
#> Oct 1992 881.7600 881.7600 881.7581 881.6834 881.6839 881.6842 881.6852
#> Nov 1992 884.8235 884.8235 884.8180 884.8245 884.8239 884.8241 884.8226
#> Dec 1992 887.4763 887.4763 887.4689 887.5478 887.5463 887.5463 887.5430
#> Jan 1993 889.4781 889.4781 889.4712 889.5988 889.5970 889.5969 889.5931
#> Feb 1993 890.6609 890.6609 890.6564 890.8021 890.8006 890.8004 890.7973
#> Mar 1993 891.0613 891.0613 891.0603 891.1940 891.1931 891.1929 891.1911
#> Apr 1993 890.7564 890.7564 890.7586 890.8588 890.8590 890.8588 890.8592
#> May 1993 889.8155 889.8155 889.8201 889.8760 889.8773 889.8773 889.8801
#> Jun 1993 888.7661 888.7661 888.7727 888.7848 888.7870 888.7870 888.7916
#> Jul 1993 888.0616 888.0617 888.0696 888.0523 888.0549 888.0550 888.0605
#> Aug 1993 887.9835 887.9835 887.9928 887.9558 887.9590 887.9591 887.9655
#> Sep 1993 888.8066 888.8066 888.8171 888.7782 888.7817 888.7818 888.7889
#> Oct 1993 890.4900 890.4900 890.5006 890.4819 890.4852 890.4852 890.4920
#> Nov 1993 893.0655 893.0655 893.0741 893.1013 893.1034 893.1032 893.1073
#> Dec 1993 896.8440 896.8440 896.8482 896.9455 896.9449 896.9445 896.9432
#> Jan 1994 901.6387 901.6387 901.6365 901.8205 901.8163 901.8154 901.8068
#> Feb 1994 907.1430 907.1429 907.1330 907.4110 907.4025 907.4009 907.3833
#> Mar 1994 913.0991 913.0990 913.0811 913.4477 913.4348 913.4327 913.4062
#> Apr 1994 918.9064 918.9063 918.8814 919.3189 919.3023 919.2997 919.2656
#> May 1994 923.9819 923.9818 923.9498 924.4394 924.4199 924.4171 924.3770
#> Jun 1994 928.1871 928.1871 928.1491 928.6662 928.6450 928.6422 928.5984
#> Jul 1994 931.7046 931.7045 931.6623 932.1797 932.1584 932.1557 932.1115
#> Aug 1994 934.6451 934.6450 934.6008 935.0942 935.0741 935.0718 935.0298
#> Sep 1994 936.7632 936.7632 936.7193 937.1621 937.1439 937.1421 937.1041
#> Oct 1994 938.2582 938.2582 938.2170 938.5884 938.5728 938.5715 938.5389
#> Nov 1994 939.6485 939.6485 939.6124 939.8974 939.8851 939.8842 939.8584
#> Dec 1994 941.1790 941.1790 941.1504 941.3427 941.3344 941.3341 941.3168
#> Jan 1995 942.8036 942.8036 942.7840 942.8899 942.8861 942.8863 942.8784
#> Feb 1995 944.4954 944.4954 944.4852 944.5222 944.5229 944.5236 944.5251
#> Mar 1995 946.1812 946.1812 946.1802 946.1707 946.1757 946.1770 946.1876
#> Apr 1995 947.9677 947.9678 947.9752 947.9416 947.9504 947.9521 947.9703
#> May 1995 950.0514 950.0514 950.0666 950.0245 950.0361 950.0380 950.0621
#> Jun 1995 952.3986 952.3987 952.4202 952.3772 952.3913 952.3934 952.4221
#> Jul 1995 954.8370 954.8371 954.8631 954.8182 954.8342 954.8364 954.8686
#> Aug 1995 957.3429 957.3430 957.3718 957.3210 957.3383 957.3407 957.3753
#> Sep 1995 959.6656 959.6657 959.6943 959.6471 959.6648 959.6673 959.7024
#> Oct 1995 961.7173 961.7174 961.7433 961.7053 961.7222 961.7247 961.7583
#> Nov 1995 963.6584 963.6585 963.6798 963.6546 963.6698 963.6721 963.7021
#> Dec 1995 965.4475 965.4476 965.4635 965.4540 965.4661 965.4680 965.4921
#> Jan 1996 966.8927 966.8928 966.9030 966.9124 966.9202 966.9215 966.9371
#> Feb 1996 967.9616 967.9616 967.9666 967.9982 968.0007 968.0009 968.0061
#> Mar 1996 968.3870 968.3870 968.3874 968.4420 968.4387 968.4378 968.4317
#> Apr 1996 968.1670 968.1670 968.1625 968.2438 968.2348 968.2328 968.2153
#> May 1996 967.7666 967.7665 967.7580 967.8643 967.8501 967.8471 967.8195
#> Jun 1996 967.4079 967.4078 967.3971 967.5193 967.5012 967.4974 967.4619
#> Jul 1996 967.1715 967.1714 967.1603 967.2889 967.2682 967.2637 967.2228
#> Aug 1996 967.1474 967.1473 967.1373 967.2605 967.2385 967.2336 967.1902
#> Sep 1996 967.6883 967.6881 967.6803 967.7852 967.7635 967.7586 967.7159
#> Oct 1996 969.0232 969.0231 969.0182 969.0959 969.0763 969.0717 969.0330
#> Nov 1996 970.9979 970.9978 970.9961 971.0409 971.0250 971.0211 970.9895
#> Dec 1996 973.3452 973.3451 973.3459 973.3589 973.3475 973.3445 973.3212
#> Jan 1997 976.0895 976.0895 976.0915 976.0787 976.0720 976.0701 976.0550
#> Feb 1997 979.2164 979.2165 979.2184 979.1865 979.1840 979.1832 979.1755
#> Mar 1997 982.6455 982.6457 982.6461 982.6048 982.6055 982.6056 982.6031
#> Apr 1997 986.2460 986.2462 986.2446 986.2042 986.2065 986.2072 986.2071
#> May 1997 989.5822 989.5824 989.5779 989.5507 989.5535 989.5546 989.5546
#> Jun 1997 992.3950 992.3952 992.3874 992.3849 992.3869 992.3880 992.3861
#> Jul 1997 994.5792 994.5794 994.5684 994.5995 994.6000 994.6009 994.5957
#> Aug 1997 996.0774 996.0775 996.0635 996.1411 996.1397 996.1404 996.1311
#> Sep 1997 996.9163 996.9165 996.9011 997.0245 997.0217 997.0221 997.0093
#> Oct 1997 997.4111 997.4113 997.3974 997.5474 997.5442 997.5444 997.5306
#> Nov 1997 997.6783 997.6785 997.6692 997.8118 997.8095 997.8095 997.7981
#> Dec 1997 997.9479 997.9481 997.9463 998.0405 998.0404 998.0405 998.0354
#> Jan 1998 998.6139 998.6140 998.6218 998.6277 998.6314 998.6317 998.6371
#> Feb 1998 999.8949 999.8950 999.9132 999.7979 999.8064 999.8071 999.8264
#> Mar 1998 1002.0457 1002.0457 1002.0738 1001.8208 1001.8345 1001.8358 1001.8703
#> Apr 1998 1005.2019 1005.2018 1005.2382 1004.8520 1004.8705 1004.8725 1004.9214
#> May 1998 1009.1703 1009.1700 1009.2139 1008.7133 1008.7355 1008.7379 1008.7986
#> Jun 1998 1013.4639 1013.4635 1013.5125 1012.9387 1012.9628 1012.9654 1013.0328
#> Jul 1998 1017.8218 1017.8215 1017.8724 1017.2788 1017.3026 1017.3050 1017.3731
#> Aug 1998 1021.7104 1021.7101 1021.7598 1021.2003 1021.2217 1021.2236 1021.2867
#> Sep 1998 1025.0108 1025.0104 1025.0557 1024.5826 1024.5998 1024.6010 1024.6531
#> Oct 1998 1027.5950 1027.5948 1027.6325 1027.2848 1027.2967 1027.2970 1027.3341
#> Nov 1998 1029.7097 1029.7096 1029.7375 1029.5372 1029.5432 1029.5427 1029.5621
#> Dec 1998 1031.7505 1031.7505 1031.7679 1031.7146 1031.7151 1031.7139 1031.7154
#> Jan 1999 1034.2461 1034.2463 1034.2538 1034.3232 1034.3194 1034.3179 1034.3046
#> Feb 1999 1037.4509 1037.4512 1037.4508 1037.6055 1037.5990 1037.5974 1037.5734
#> Mar 1999 1041.5920 1041.5923 1041.5868 1041.7829 1041.7755 1041.7740 1041.7446
#> Apr 1999 1046.6315 1046.6319 1046.6247 1046.8162 1046.8094 1046.8082 1046.7791
#> May 1999 1052.2006 1052.2010 1052.1936 1052.3508 1052.3460 1052.3453 1052.3205
#> Jun 1999 1058.1114 1058.1117 1058.1050 1058.2139 1058.2115 1058.2114 1058.1932
#> Jul 1999 1063.9359 1063.9362 1063.9300 1063.9929 1063.9927 1063.9931 1063.9824
#> Aug 1999 1069.2339 1069.2341 1069.2281 1069.2533 1069.2548 1069.2557 1069.2513
#> Sep 1999 1073.6060 1073.6061 1073.6012 1073.5896 1073.5926 1073.5938 1073.5954
#> Oct 1999 1076.7315 1076.7316 1076.7283 1076.6869 1076.6911 1076.6924 1076.6987
#> Nov 1999 1078.6295 1078.6296 1078.6286 1078.5698 1078.5749 1078.5762 1078.5847
#> Dec 1999 1079.6542 1079.6543 1079.6562 1079.5937 1079.5995 1079.6008 1079.6088
#> Jan 2000 1079.7950 1079.7955 1079.8004 1079.7475 1079.7541 1079.7552 1079.7598
#> Feb 2000 1079.2746 1079.2753 1079.2835 1079.2514 1079.2593 1079.2602 1079.2589
#> Mar 2000 1078.3633 1078.3645 1078.3761 1078.3742 1078.3838 1078.3847 1078.3757
#> Apr 2000 1077.4037 1077.4054 1077.4210 1077.4508 1077.4626 1077.4636 1077.4464
#> May 2000 1076.9408 1076.9429 1076.9624 1077.0197 1077.0339 1077.0350 1077.0101
#> Jun 2000 1077.2133 1077.2159 1077.2386 1077.3136 1077.3303 1077.3317 1077.3008
#> Jul 2000 1078.4994 1078.5023 1078.5281 1078.6024 1078.6218 1078.6235 1078.5900
#> Aug 2000 1080.7920 1080.7950 1080.8238 1080.8773 1080.8991 1080.9012 1080.8691
#> Sep 2000 1084.2017 1084.2047 1084.2358 1084.2555 1084.2791 1084.2815 1084.2532
#> Oct 2000 1088.5757 1088.5785 1088.6106 1088.5927 1088.6164 1088.6190 1088.5949
#> Nov 2000 1093.6373 1093.6398 1093.6714 1093.6203 1093.6424 1093.6448 1093.6237
#> Dec 2000 1098.8986 1098.9008 1098.9306 1098.8567 1098.8757 1098.8775 1098.8577
#> Jan 2001 1103.8713 1103.8732 1103.8998 1103.8202 1103.8344 1103.8355 1103.8142
#> Feb 2001 1108.4727 1108.4742 1108.4968 1108.4298 1108.4380 1108.4381 1108.4126
#> Mar 2001 1112.9050 1112.9061 1112.9245 1112.8817 1112.8839 1112.8828 1112.8518
#> Apr 2001 1117.3915 1117.3924 1117.4054 1117.3988 1117.3953 1117.3933 1117.3563
#> May 2001 1122.1598 1122.1605 1122.1682 1122.1984 1122.1903 1122.1876 1122.1454
#> Jun 2001 1127.4521 1127.4527 1127.4571 1127.5098 1127.4988 1127.4957 1127.4513
#> Jul 2001 1133.3609 1133.3614 1133.3645 1133.4220 1133.4100 1133.4067 1133.3631
#> Aug 2001 1140.0133 1140.0137 1140.0172 1140.0621 1140.0509 1140.0478 1140.0083
#> Sep 2001 1147.3283 1147.3287 1147.3336 1147.3559 1147.3469 1147.3442 1147.3117
#> Oct 2001 1155.3652 1155.3655 1155.3720 1155.3677 1155.3616 1155.3596 1155.3361
#> Nov 2001 1164.0380 1164.0383 1164.0461 1164.0163 1164.0135 1164.0122 1163.9987
#> Dec 2001 1172.8623 1172.8625 1172.8707 1172.8228 1172.8229 1172.8223 1172.8181
#> Jan 2002 1181.3527 1181.3528 1181.3601 1181.3066 1181.3086 1181.3085 1181.3113
#> Feb 2002 1189.3955 1189.3955 1189.4004 1189.3539 1189.3568 1189.3571 1189.3647
#> Mar 2002 1196.8714 1196.8713 1196.8725 1196.8444 1196.8472 1196.8478 1196.8575
#> Apr 2002 1203.6950 1203.6948 1203.6917 1203.6894 1203.6908 1203.6913 1203.7003
#> May 2002 1209.9061 1209.9058 1209.8979 1209.9251 1209.9245 1209.9248 1209.9312
#> Jun 2002 1215.6282 1215.6279 1215.6157 1215.6683 1215.6659 1215.6660 1215.6695
#> Jul 2002 1221.3345 1221.3342 1221.3190 1221.3890 1221.3852 1221.3852 1221.3864
#> Aug 2002 1227.3652 1227.3649 1227.3481 1227.4283 1227.4237 1227.4235 1227.4220
#> Sep 2002 1233.9357 1233.9355 1233.9184 1234.0027 1233.9973 1233.9971 1233.9923
#> Oct 2002 1240.8159 1240.8158 1240.8002 1240.8798 1240.8744 1240.8741 1240.8670
#> Nov 2002 1247.4716 1247.4715 1247.4593 1247.5229 1247.5188 1247.5188 1247.5127
#> Dec 2002 1253.5469 1253.5468 1253.5392 1253.5777 1253.5765 1253.5769 1253.5759
#> Jan 2003 1259.4078 1259.4078 1259.4052 1259.4130 1259.4158 1259.4169 1259.4250
#> Feb 2003 1265.3989 1265.3989 1265.4006 1265.3775 1265.3850 1265.3869 1265.4064
#> Mar 2003 1271.7246 1271.7245 1271.7291 1271.6811 1271.6927 1271.6953 1271.7260
#> Apr 2003 1278.5138 1278.5136 1278.5206 1278.4523 1278.4666 1278.4695 1278.5091
#> May 2003 1285.6126 1285.6124 1285.6218 1285.5366 1285.5522 1285.5549 1285.6000
#> Jun 2003 1292.6696 1292.6693 1292.6792 1292.5911 1292.6061 1292.6084 1292.6542
#> Jul 2003 1299.3386 1299.3383 1299.3464 1299.2697 1299.2827 1299.2845 1299.3265
#> Aug 2003 1305.5316 1305.5313 1305.5362 1305.4811 1305.4910 1305.4923 1305.5276
#> Sep 2003 1311.3849 1311.3846 1311.3854 1311.3597 1311.3657 1311.3665 1311.3927
#> Oct 2003 1317.0010 1317.0007 1316.9969 1317.0060 1317.0074 1317.0077 1317.0230
#> Nov 2003 1322.4472 1322.4470 1322.4385 1322.4838 1322.4802 1322.4801 1322.4832
#> Dec 2003 1328.1558 1328.1556 1328.1435 1328.2194 1328.2112 1328.2106 1328.2020
#> Jan 2004 1334.5427 1334.5425 1334.5289 1334.6207 1334.6096 1334.6086 1334.5916
#> Feb 2004 1341.3977 1341.3975 1341.3850 1341.4745 1341.4627 1341.4613 1341.4401
#> Mar 2004 1348.3029 1348.3028 1348.2938 1348.3628 1348.3524 1348.3508 1348.3299
#> Apr 2004 1354.8901 1354.8901 1354.8853 1354.9227 1354.9160 1354.9145 1354.8987
#> May 2004 1361.3943 1361.3945 1361.3936 1361.3946 1361.3936 1361.3925 1361.3857
#> Jun 2004 1368.1968 1368.1971 1368.2006 1368.1623 1368.1673 1368.1668 1368.1703
#> Jul 2004 1375.3366 1375.3370 1375.3463 1375.2711 1375.2803 1375.2800 1375.2906
#> Aug 2004 1382.6248 1382.6251 1382.6424 1382.5351 1382.5447 1382.5442 1382.5570
#> Sep 2004 1389.2862 1389.2864 1389.3140 1389.1752 1389.1829 1389.1820 1389.1945
#> Oct 2004 1394.5842 1394.5841 1394.6236 1394.4508 1394.4559 1394.4548 1394.4669
#> Nov 2004 1398.0735 1398.0732 1398.1237 1397.9183 1397.9214 1397.9203 1397.9329
#> Dec 2004 1399.8246 1399.8242 1399.8828 1399.6499 1399.6526 1399.6517 1399.6664
#> Jan 2005 1400.0784 1400.0780 1400.1403 1399.8885 1399.8929 1399.8924 1399.9108
#> Feb 2005 1399.1253 1399.1251 1399.1859 1398.9264 1398.9346 1398.9346 1398.9579
#> Mar 2005 1397.1802 1397.1805 1397.2348 1396.9779 1396.9919 1396.9925 1397.0220
#> Apr 2005 1394.4227 1394.4234 1394.4686 1394.2194 1394.2405 1394.2417 1394.2783
#> May 2005 1390.8189 1390.8202 1390.8524 1390.6254 1390.6537 1390.6555 1390.6983
#> Jun 2005 1386.9274 1386.9291 1386.9463 1386.7542 1386.7882 1386.7908 1386.8381
#> Jul 2005 1383.3082 1383.3101 1383.3134 1383.1602 1383.1979 1383.2015 1383.2521
#> Aug 2005 1380.4139 1380.4156 1380.4095 1380.2944 1380.3316 1380.3362 1380.3869
#> Sep 2005 1378.5912 1378.5926 1378.5829 1378.5012 1378.5335 1378.5390 1378.5858
#> Oct 2005 1378.3115 1378.3122 1378.3039 1378.2478 1378.2724 1378.2784 1378.3189
#> Nov 2005 1380.1314 1380.1314 1380.1287 1380.0871 1380.1027 1380.1088 1380.1414
#> Dec 2005 1383.8842 1383.8836 1383.8897 1383.8513 1383.8576 1383.8633 1383.8877
#> Jan 2006 1388.7550 1388.7539 1388.7698 1388.7285 1388.7259 1388.7309 1388.7466
#> Feb 2006 1394.0539 1394.0525 1394.0763 1394.0311 1394.0216 1394.0254 1394.0332
#> Mar 2006 1399.4379 1399.4365 1399.4649 1399.4180 1399.4041 1399.4067 1399.4083
#> Apr 2006 1404.6405 1404.6392 1404.6685 1404.6261 1404.6100 1404.6115 1404.6083
#> May 2006 1409.6586 1409.6574 1409.6874 1409.6465 1409.6287 1409.6293 1409.6219
#> Jun 2006 1414.2336 1414.2326 1414.2631 1414.2206 1414.2016 1414.2016 1414.1904
#> Jul 2006 1417.9681 1417.9669 1417.9994 1417.9570 1417.9344 1417.9343 1417.9168
#> Aug 2006 1420.8906 1420.8889 1420.9273 1420.8909 1420.8598 1420.8595 1420.8312
#> Sep 2006 1422.9603 1422.9579 1423.0042 1422.9835 1422.9406 1422.9398 1422.8967
#> Oct 2006 1424.6987 1424.6954 1424.7488 1424.7596 1424.7030 1424.7008 1424.6393
#> Nov 2006 1426.8896 1426.8856 1426.9416 1426.9984 1426.9298 1426.9256 1426.8454
#> Dec 2006 1430.1807 1430.1765 1430.2286 1430.3387 1430.2631 1430.2562 1430.1617
#> Jan 2007 1434.9747 1434.9709 1435.0115 1435.1764 1435.1009 1435.0910 1434.9886
#> Feb 2007 1441.4311 1441.4284 1441.4489 1441.6611 1441.5948 1441.5822 1441.4814
#> Mar 2007 1449.3820 1449.3810 1449.3752 1449.6204 1449.5716 1449.5568 1449.4675
#> Apr 2007 1458.8177 1458.8186 1458.7829 1459.0514 1459.0245 1459.0087 1458.9377
#> May 2007 1469.1541 1469.1568 1469.0934 1469.3759 1469.3704 1469.3547 1469.3041
#> Jun 2007 1479.8097 1479.8139 1479.7305 1480.0031 1480.0166 1480.0027 1479.9740
#> Jul 2007 1489.9349 1489.9398 1489.8498 1490.0821 1490.1090 1490.0984 1490.0899
#> Aug 2007 1498.9220 1498.9270 1498.8404 1499.0095 1499.0466 1499.0400 1499.0481
#> Sep 2007 1506.7720 1506.7762 1506.7049 1506.7994 1506.8395 1506.8371 1506.8539
#> Oct 2007 1513.2976 1513.3000 1513.2594 1513.2791 1513.3090 1513.3103 1513.3235
#> Nov 2007 1518.2608 1518.2602 1518.2679 1518.2215 1518.2243 1518.2279 1518.2227
#> Dec 2007 1521.5816 1521.5771 1521.6471 1521.5530 1521.5122 1521.5165 1521.4790
#> Jan 2008 1523.3731 1523.3642 1523.5035 1523.3832 1523.2874 1523.2909 1523.2120
#> Feb 2008 1523.8614 1523.8482 1524.0531 1523.9244 1523.7722 1523.7739 1523.6538
#> Mar 2008 1523.4145 1523.3979 1523.6579 1523.5369 1523.3333 1523.3329 1523.1771
#> Apr 2008 1522.5647 1522.5456 1522.8462 1522.7383 1522.4944 1522.4920 1522.3113
#> May 2008 1522.0417 1522.0213 1522.3434 1522.2596 1521.9901 1521.9866 1521.7931
#> Jun 2008 1522.3086 1522.2877 1522.6191 1522.5768 1522.2901 1522.2855 1522.0821
#> Jul 2008 1524.0437 1524.0230 1524.3504 1524.3644 1524.0718 1524.0653 1523.8562
#> Aug 2008 1527.9337 1527.9136 1528.2304 1528.2922 1528.0035 1527.9950 1527.7790
#> Sep 2008 1534.0650 1534.0460 1534.3389 1534.4160 1534.1485 1534.1400 1533.9258
#> Oct 2008 1542.3642 1542.3471 1542.5972 1542.6402 1542.4154 1542.4112 1542.2182
#> Nov 2008 1551.9829 1551.9689 1552.1545 1552.1072 1551.9479 1551.9534 1551.8087
#> Dec 2008 1561.8890 1561.8791 1561.9804 1561.7969 1561.7213 1561.7416 1561.6725
#> Jan 2009 1571.3150 1571.3102 1571.3136 1570.9672 1570.9853 1571.0240 1571.0515
#> Feb 2009 1579.3876 1579.3877 1579.2981 1578.7910 1578.8950 1578.9532 1579.0822
#> Mar 2009 1585.5793 1585.5837 1585.4140 1584.7762 1584.9490 1585.0251 1585.2477
#> Apr 2009 1589.4659 1589.4742 1589.2386 1588.5193 1588.7425 1588.8326 1589.1322
#> May 2009 1590.8802 1590.8919 1590.6054 1589.8652 1590.1218 1590.2199 1590.5729
#> Jun 2009 1590.0005 1590.0153 1589.6879 1588.9855 1589.2641 1589.3640 1589.7456
#> Jul 2009 1587.0180 1587.0351 1586.6803 1586.0573 1586.3472 1586.4434 1586.8273
#> Aug 2009 1582.2598 1582.2771 1581.9261 1581.4072 1581.6874 1581.7732 1582.1161
#> Sep 2009 1576.5653 1576.5805 1576.2660 1575.8538 1576.1044 1576.1743 1576.4432
#> Oct 2009 1570.4196 1570.4315 1570.1719 1569.8523 1570.0652 1570.1161 1570.2989
#> Nov 2009 1564.4583 1564.4669 1564.2630 1564.0146 1564.1933 1564.2245 1564.3292
#> Dec 2009 1559.1054 1559.1119 1558.9487 1558.7466 1558.9038 1558.9172 1558.9682
#> Jan 2010 1554.7640 1554.7703 1554.6239 1554.4418 1554.5954 1554.5952 1554.6274
#> Feb 2010 1551.6589 1551.6671 1551.5094 1551.3322 1551.4998 1551.4910 1551.5396
#> Mar 2010 1549.7385 1549.7501 1549.5619 1549.3910 1549.5805 1549.5683 1549.6572
#> Apr 2010 1548.8647 1548.8801 1548.6567 1548.5059 1548.7139 1548.7022 1548.8393
#> May 2010 1548.7631 1548.7814 1548.5346 1548.3930 1548.6077 1548.5999 1548.7809
#> Jun 2010 1549.2589 1549.2782 1549.0324 1548.8991 1549.1008 1549.0981 1549.3023
#> Jul 2010 1550.2879 1550.3057 1550.0855 1549.9842 1550.1522 1550.1562 1550.3554
#> Aug 2010 1551.1908 1551.2062 1551.0161 1550.9931 1551.1152 1551.1287 1551.3179
#> Sep 2010 1551.2975 1551.3099 1551.1486 1551.2673 1551.3391 1551.3618 1551.5356
#> Oct 2010 1550.1793 1550.1871 1550.0723 1550.3995 1550.4081 1550.4334 1550.5518
#> Nov 2010 1547.5189 1547.5195 1547.4872 1548.0828 1548.0058 1548.0220 1548.0114
#> Dec 2010 1543.5239 1543.5144 1543.6113 1544.5115 1544.3220 1544.3151 1544.0867
#> Jan 2011 1538.3754 1538.3532 1538.6241 1539.8334 1539.5078 1539.4642 1538.9362
#> Feb 2011 1532.5159 1532.4801 1532.9521 1534.4389 1533.9671 1533.8771 1532.9966
#> Mar 2011 1526.5525 1526.5048 1527.1715 1528.8625 1528.2584 1528.1194 1526.8816
#> Apr 2011 1520.6822 1520.6256 1521.4595 1523.2533 1522.5445 1522.3614 1520.8068
#> May 2011 1515.1875 1515.1251 1516.0828 1517.8736 1517.0952 1516.8803 1515.0874
#> Jun 2011 1510.0552 1509.9895 1511.0208 1512.6839 1511.8754 1511.6474 1509.7261
#> Jul 2011 1505.4093 1505.3422 1506.3991 1507.8113 1507.0076 1506.7926 1504.8672
#> Aug 2011 1501.6319 1501.5653 1502.5929 1503.6640 1502.9069 1502.7276 1500.9263
#> Sep 2011 1498.9561 1498.8925 1499.8305 1500.5175 1499.8465 1499.7201 1498.1754
#> Oct 2011 1497.6021 1497.5430 1498.3512 1498.6665 1498.1023 1498.0347 1496.8297
#> Nov 2011 1498.1230 1498.0690 1498.7319 1498.7321 1498.2784 1498.2639 1497.4225
#> Dec 2011 1500.7021 1500.6525 1501.1796 1500.9495 1500.5954 1500.6188 1500.1054
#> Jan 2012 1504.9456 1504.8994 1505.3205 1504.9582 1504.6812 1504.7212 1504.4494
#> Feb 2012 1510.3186 1510.2743 1510.6334 1510.2243 1509.9960 1510.0295 1509.8823
#> Mar 2012 1516.0152 1515.9727 1516.3188 1515.9099 1515.7000 1515.7085 1515.5633
#> Apr 2012 1521.3000 1521.2592 1521.6334 1521.2387 1521.0230 1520.9966 1520.7563
#> May 2012 1525.7167 1525.6771 1526.1034 1525.7189 1525.4838 1525.4235 1525.0375
#> Jun 2012 1529.0393 1529.0006 1529.4774 1529.1241 1528.8666 1528.7841 1528.2562
#> Jul 2012 1530.9741 1530.9364 1531.4382 1531.1069 1530.8366 1530.7630 1530.1603
#> Aug 2012 1531.4711 1531.4348 1531.9180 1531.5928 1531.3350 1531.3006 1530.7197
#> Sep 2012 1530.7360 1530.6987 1531.1537 1530.8313 1530.5883 1530.6068 1530.0728
#> Oct 2012 1529.0308 1528.9899 1529.4132 1529.0936 1528.8611 1528.9328 1528.4668
#> Nov 2012 1526.7695 1526.7230 1527.1125 1526.7843 1526.5601 1526.6746 1526.3149
#> Dec 2012 1524.3834 1524.3311 1524.6843 1524.3248 1524.1106 1524.2499 1524.0479
#> Jan 2013 1522.3675 1522.3108 1522.6251 1522.2099 1522.0103 1522.1527 1522.1585
#> Feb 2013 1520.9644 1520.9066 1521.1806 1520.6950 1520.5172 1520.6419 1520.8868
#> Mar 2013 1520.1901 1520.1374 1520.3695 1519.8049 1519.6537 1519.7466 1520.2395
#> Apr 2013 1520.0989 1520.0558 1520.2535 1519.6151 1519.4931 1519.5491 1520.2792
#> May 2013 1520.5326 1520.5012 1520.6706 1520.0030 1519.9109 1519.9372 1520.8787
#> Jun 2013 1521.0136 1520.9932 1521.1387 1520.4690 1520.4108 1520.4266 1521.5451
#> Jul 2013 1521.3062 1521.2926 1521.4162 1520.7239 1520.6945 1520.7542 1522.0340
#> Aug 2013 1521.0614 1521.0484 1521.1634 1520.4331 1520.4155 1520.5581 1521.9393
#> Sep 2013 1520.2367 1520.2175 1520.3394 1519.5704 1519.5449 1519.7818 1521.1843
#> Oct 2013 1519.0318 1519.0015 1519.1356 1518.3485 1518.3084 1518.6201 1519.9442
#> Nov 2013 1517.5000 1517.4567 1517.5985 1516.8327 1516.7791 1517.1216 1518.2661
#> Dec 2013 1515.3968 1515.3423 1515.4779 1514.7878 1514.7269 1515.0422 1515.9200
#> Jan 2014 1512.9023 1512.8423 1512.9530 1512.3935 1512.3344 1512.5639 1513.1185
#> Feb 2014 1510.2403 1510.1830 1510.2499 1509.8748 1509.8300 1509.9270 1510.1432
#> Mar 2014 1507.7736 1507.7220 1507.7470 1507.6141 1507.5930 1507.5302 1507.4480
#> Apr 2014 1506.1478 1506.1056 1506.1098 1506.2357 1506.2427 1506.0231 1505.7235
#> May 2014 1505.6966 1505.6716 1505.6672 1506.0481 1506.0819 1505.7428 1505.3288
#> Jun 2014 1506.3692 1506.3718 1506.3534 1506.9112 1506.9726 1506.5816 1506.1541
#> Jul 2014 1508.1094 1508.1494 1508.1026 1508.7461 1508.8366 1508.4410 1508.0606
#> Aug 2014 1510.6447 1510.7282 1510.6386 1511.2363 1511.3399 1510.9947 1510.6462
#> Sep 2014 1513.6296 1513.7578 1513.6109 1513.9720 1514.0558 1513.8438 1513.5180
#> Oct 2014 1517.0961 1517.2658 1517.0367 1516.9300 1516.9654 1516.9897 1516.7348
#> Nov 2014 1520.8507 1521.0545 1520.7207 1519.9419 1519.9002 1520.2577 1520.1231
#> Dec 2014 1524.9047 1525.1326 1524.6805 1523.0992 1522.9581 1523.7163 1523.7409
#> Jan 2015 1529.3618 1529.6034 1529.0334 1526.6247 1526.3739 1527.5537 1527.7593
#> Feb 2015 1534.2028 1534.4474 1533.7766 1530.6517 1530.2987 1531.8697 1532.2467
#> Mar 2015 1539.7087 1539.9552 1539.2150 1535.5767 1535.1396 1537.0257 1537.5627
#> Apr 2015 1545.9376 1546.1814 1545.4489 1541.5766 1541.0824 1543.1756 1543.8711
#> May 2015 1552.7203 1552.9519 1552.3027 1548.5755 1548.0547 1550.2372 1551.1001
#> Jun 2015 1560.0458 1560.2509 1559.7482 1556.4452 1555.9398 1558.1029 1559.1422
#> Jul 2015 1567.6316 1567.7955 1567.4826 1564.8195 1564.3646 1566.4105 1567.5343
#> Aug 2015 1575.1707 1575.2803 1575.1674 1573.2489 1572.8705 1574.7035 1575.7365
#> Sep 2015 1582.2785 1582.3246 1582.3727 1581.1152 1580.8317 1582.4063 1583.2831
#> Oct 2015 1588.0642 1588.0426 1588.1858 1587.3483 1587.1531 1588.4782 1589.2326
#> Nov 2015 1591.8075 1591.7202 1591.8772 1591.1238 1590.9907 1592.1220 1592.8702
#> Dec 2015 1593.1650 1593.0195 1593.1136 1592.0916 1591.9821 1593.0068 1593.9176
#> Jan 2016 1592.0374 1591.8465 1591.8244 1590.2481 1590.1206 1591.1356 1592.3888
#> Feb 2016 1588.6845 1588.4636 1588.3078 1585.9697 1585.7758 1586.8610 1588.6459
#> Mar 2016 1583.5855 1583.3699 1583.0951 1579.9630 1579.6718 1580.8771 1583.3016
#> Apr 2016 1577.0747 1576.9035 1576.5048 1572.7517 1572.3667 1573.7021 1576.7392
#> May 2016 1569.7625 1569.6591 1569.1657 1565.0005 1564.5622 1565.9905 1569.4763
#> Jun 2016 1562.3297 1562.2966 1561.7908 1557.5967 1557.1367 1558.5829 1562.2365
#> Jul 2016 1555.3263 1555.3458 1554.9370 1551.2180 1550.7823 1552.2086 1555.7209
#> Aug 2016 1549.3045 1549.3455 1549.1532 1546.4271 1546.0843 1547.4973 1550.6416
#> Sep 2016 1544.6585 1544.6849 1544.8200 1543.6225 1543.4609 1544.8523 1547.3986
#> Oct 2016 1541.5535 1541.5320 1542.0852 1542.9014 1543.0077 1544.3468 1546.0195
#> Nov 2016 1539.8389 1539.7475 1540.7743 1543.9529 1544.4019 1545.6484 1546.2004
#> Dec 2016 1539.3764 1539.2096 1540.7257 1546.4269 1547.2669 1548.3869 1547.6350
#> Jan 2017 1539.6874 1539.4601 1541.4440 1549.6262 1550.8724 1551.8482 1549.6948
#> Feb 2017 NaN 1540.1168 1542.5196 1552.9799 1554.6171 1555.4548 1551.8921
#> Mar 2017 NaN NaN 1543.6491 1556.0258 1558.0045 1558.7326 1553.8696
#> Apr 2017 NaN NaN NaN 1558.2900 1560.5391 1561.2037 1555.2223
#> May 2017 NaN NaN NaN NaN 1561.9521 1562.6135 1555.7136
#> Jun 2017 NaN NaN NaN NaN NaN 1563.0477 1555.4027
#> Jul 2017 NaN NaN NaN NaN NaN NaN 1554.5021
#> Aug 2017 NaN NaN NaN NaN NaN NaN NaN
#> Series 92
#> Apr 1982 482.7345
#> May 1982 483.8578
#> Jun 1982 485.3110
#> Jul 1982 486.2373
#> Aug 1982 487.3985
#> Sep 1982 488.7899
#> Oct 1982 490.3910
#> Nov 1982 492.0722
#> Dec 1982 493.8248
#> Jan 1983 495.5197
#> Feb 1983 497.2204
#> Mar 1983 499.0059
#> Apr 1983 500.8544
#> May 1983 502.9306
#> Jun 1983 505.2974
#> Jul 1983 507.9738
#> Aug 1983 510.9385
#> Sep 1983 514.2450
#> Oct 1983 517.9958
#> Nov 1983 522.2508
#> Dec 1983 526.9251
#> Jan 1984 531.9363
#> Feb 1984 537.0713
#> Mar 1984 542.0895
#> Apr 1984 546.9452
#> May 1984 551.6520
#> Jun 1984 556.1575
#> Jul 1984 560.6269
#> Aug 1984 565.3537
#> Sep 1984 570.4213
#> Oct 1984 576.1135
#> Nov 1984 582.5105
#> Dec 1984 589.5996
#> Jan 1985 597.3931
#> Feb 1985 605.6601
#> Mar 1985 614.0413
#> Apr 1985 622.2302
#> May 1985 629.8271
#> Jun 1985 636.2530
#> Jul 1985 641.2156
#> Aug 1985 644.4871
#> Sep 1985 646.3632
#> Oct 1985 647.2085
#> Nov 1985 647.6757
#> Dec 1985 648.5322
#> Jan 1986 650.2303
#> Feb 1986 652.9178
#> Mar 1986 656.7092
#> Apr 1986 661.6205
#> May 1986 667.4180
#> Jun 1986 673.8323
#> Jul 1986 680.5545
#> Aug 1986 687.0142
#> Sep 1986 692.8485
#> Oct 1986 697.8615
#> Nov 1986 701.7062
#> Dec 1986 704.4590
#> Jan 1987 706.2927
#> Feb 1987 707.4931
#> Mar 1987 708.6368
#> Apr 1987 710.1301
#> May 1987 712.0270
#> Jun 1987 714.5888
#> Jul 1987 717.9546
#> Aug 1987 722.1516
#> Sep 1987 727.2018
#> Oct 1987 732.7198
#> Nov 1987 738.3822
#> Dec 1987 743.6737
#> Jan 1988 748.0532
#> Feb 1988 751.6374
#> Mar 1988 754.7008
#> Apr 1988 757.3687
#> May 1988 759.7665
#> Jun 1988 762.1301
#> Jul 1988 764.4757
#> Aug 1988 766.8809
#> Sep 1988 769.2703
#> Oct 1988 771.5499
#> Nov 1988 773.9571
#> Dec 1988 776.6177
#> Jan 1989 779.5711
#> Feb 1989 782.9470
#> Mar 1989 786.7450
#> Apr 1989 790.6273
#> May 1989 794.6737
#> Jun 1989 798.9990
#> Jul 1989 803.3062
#> Aug 1989 807.5199
#> Sep 1989 811.3294
#> Oct 1989 814.4523
#> Nov 1989 816.8253
#> Dec 1989 818.3338
#> Jan 1990 819.1209
#> Feb 1990 819.5229
#> Mar 1990 819.5620
#> Apr 1990 819.4264
#> May 1990 819.2811
#> Jun 1990 819.1618
#> Jul 1990 818.9610
#> Aug 1990 818.6433
#> Sep 1990 818.2620
#> Oct 1990 818.3096
#> Nov 1990 819.0252
#> Dec 1990 820.4342
#> Jan 1991 822.7478
#> Feb 1991 825.8429
#> Mar 1991 829.3542
#> Apr 1991 833.2573
#> May 1991 837.4956
#> Jun 1991 841.6372
#> Jul 1991 845.6705
#> Aug 1991 849.5914
#> Sep 1991 853.2292
#> Oct 1991 856.4675
#> Nov 1991 858.9797
#> Dec 1991 860.6955
#> Jan 1992 861.9794
#> Feb 1992 863.0337
#> Mar 1992 864.1978
#> Apr 1992 865.7545
#> May 1992 867.7693
#> Jun 1992 870.1063
#> Jul 1992 872.5453
#> Aug 1992 875.2059
#> Sep 1992 878.3288
#> Oct 1992 881.6849
#> Nov 1992 884.8238
#> Dec 1992 887.5451
#> Jan 1993 889.5954
#> Feb 1993 890.7990
#> Mar 1993 891.1919
#> Apr 1993 890.8586
#> May 1993 889.8783
#> Jun 1993 888.7887
#> Jul 1993 888.0571
#> Aug 1993 887.9615
#> Sep 1993 888.7844
#> Oct 1993 890.4876
#> Nov 1993 893.1043
#> Dec 1993 896.9431
#> Jan 1994 901.8106
#> Feb 1994 907.3920
#> Mar 1994 913.4197
#> Apr 1994 919.2833
#> May 1994 924.3980
#> Jun 1994 928.6217
#> Jul 1994 932.1353
#> Aug 1994 935.0527
#> Sep 1994 937.1252
#> Oct 1994 938.5574
#> Nov 1994 939.8736
#> Dec 1994 941.3276
#> Jan 1995 942.8842
#> Feb 1995 944.5258
#> Mar 1995 946.1832
#> Apr 1995 947.9616
#> May 1995 950.0497
#> Jun 1995 952.4067
#> Jul 1995 954.8507
#> Aug 1995 957.3557
#> Sep 1995 959.6824
#> Oct 1995 961.7394
#> Nov 1995 963.6854
#> Dec 1995 965.4790
#> Jan 1996 966.9287
#> Feb 1996 968.0033
#> Mar 1996 968.4349
#> Apr 1996 968.2245
#> May 1996 967.8339
#> Jun 1996 967.4802
#> Jul 1996 967.2436
#> Aug 1996 967.2122
#> Sep 1996 967.7374
#> Oct 1996 969.0523
#> Nov 1996 971.0049
#> Dec 1996 973.3318
#> Jan 1997 976.0606
#> Feb 1997 979.1764
#> Mar 1997 982.6005
#> Apr 1997 986.2024
#> May 1997 989.5493
#> Jun 1997 992.3815
#> Jul 1997 994.5927
#> Aug 1997 996.1300
#> Sep 1997 997.0096
#> Oct 1997 997.5310
#> Nov 1997 997.7977
#> Dec 1997 998.0334
#> Jan 1998 998.6326
#> Feb 1998 999.8189
#> Mar 1998 1001.8597
#> Apr 1998 1004.9083
#> May 1998 1008.7835
#> Jun 1998 1013.0171
#> Jul 1998 1017.3581
#> Aug 1998 1021.2738
#> Sep 1998 1024.6433
#> Oct 1998 1027.3276
#> Nov 1998 1029.5588
#> Dec 1998 1031.7146
#> Jan 1999 1034.3050
#> Feb 1999 1037.5741
#> Mar 1999 1041.7447
#> Apr 1999 1046.7776
#> May 1999 1052.3173
#> Jun 1999 1058.1884
#> Jul 1999 1063.9770
#> Aug 1999 1069.2457
#> Sep 1999 1073.5898
#> Oct 1999 1076.6932
#> Nov 1999 1078.5789
#> Dec 1999 1079.6017
#> Jan 2000 1079.7500
#> Feb 2000 1079.2445
#> Mar 2000 1078.3548
#> Apr 2000 1077.4177
#> May 2000 1076.9732
#> Jun 2000 1077.2561
#> Jul 2000 1078.5387
#> Aug 2000 1080.8134
#> Sep 2000 1084.1954
#> Oct 2000 1088.5378
#> Nov 2000 1093.5703
#> Dec 2000 1098.8102
#> Jan 2001 1103.7744
#> Feb 2001 1108.3816
#> Mar 2001 1112.8293
#> Apr 2001 1117.3417
#> May 2001 1122.1374
#> Jun 2001 1127.4481
#> Jul 2001 1133.3627
#> Aug 2001 1140.0085
#> Sep 2001 1147.3115
#> Oct 2001 1155.3350
#> Nov 2001 1163.9965
#> Dec 2001 1172.8152
#> Jan 2002 1181.3087
#> Feb 2002 1189.3631
#> Mar 2002 1196.8576
#> Apr 2002 1203.7029
#> May 2002 1209.9368
#> Jun 2002 1215.6777
#> Jul 2002 1221.3964
#> Aug 2002 1227.4327
#> Sep 2002 1234.0027
#> Oct 2002 1240.8759
#> Nov 2002 1247.5189
#> Dec 2002 1253.5786
#> Jan 2003 1259.4239
#> Feb 2003 1265.4022
#> Mar 2003 1271.7201
#> Apr 2003 1278.5033
#> May 2003 1285.5955
#> Jun 2003 1292.6522
#> Jul 2003 1299.3276
#> Aug 2003 1305.5318
#> Sep 2003 1311.3997
#> Oct 2003 1317.0322
#> Nov 2003 1322.4943
#> Dec 2003 1328.2144
#> Jan 2004 1334.6038
#> Feb 2004 1341.4508
#> Mar 2004 1348.3380
#> Apr 2004 1354.9032
#> May 2004 1361.3858
#> Jun 2004 1368.1659
#> Jul 2004 1375.2829
#> Aug 2004 1382.5477
#> Sep 2004 1389.1845
#> Oct 2004 1394.4563
#> Nov 2004 1397.9215
#> Dec 2004 1399.6540
#> Jan 2005 1399.8973
#> Feb 2005 1398.9434
#> Mar 2005 1397.0062
#> Apr 2005 1394.2612
#> May 2005 1390.6803
#> Jun 2005 1386.8201
#> Jul 2005 1383.2346
#> Aug 2005 1380.3705
#> Sep 2005 1378.5709
#> Oct 2005 1378.3055
#> Nov 2005 1380.1296
#> Dec 2005 1383.8771
#> Jan 2006 1388.7373
#> Feb 2006 1394.0253
#> Mar 2006 1399.4020
#> Apr 2006 1404.6035
#> May 2006 1409.6189
#> Jun 2006 1414.1896
#> Jul 2006 1417.9193
#> Aug 2006 1420.8379
#> Sep 2006 1422.9081
#> Oct 2006 1424.6560
#> Nov 2006 1426.8673
#> Dec 2006 1430.1875
#> Jan 2007 1435.0169
#> Feb 2007 1441.5104
#> Mar 2007 1449.4953
#> Apr 2007 1458.9633
#> May 2007 1469.3273
#> Jun 2007 1479.9941
#> Jul 2007 1490.1062
#> Aug 2007 1499.0609
#> Sep 2007 1506.8638
#> Oct 2007 1513.3312
#> Nov 2007 1518.2286
#> Dec 2007 1521.4836
#> Jan 2008 1523.2153
#> Feb 2008 1523.6552
#> Mar 2008 1523.1760
#> Apr 2008 1522.3072
#> May 2008 1521.7863
#> Jun 2008 1522.0746
#> Jul 2008 1523.8495
#> Aug 2008 1527.7755
#> Sep 2008 1533.9279
#> Oct 2008 1542.2271
#> Nov 2008 1551.8242
#> Dec 2008 1561.6931
#> Jan 2009 1571.0752
#> Feb 2009 1579.1067
#> Mar 2009 1585.2712
#> Apr 2009 1589.1539
#> May 2009 1590.5930
#> Jun 2009 1589.7652
#> Jul 2009 1586.8489
#> Aug 2009 1582.1436
#> Sep 2009 1576.4761
#> Oct 2009 1570.3337
#> Nov 2009 1564.3614
#> Dec 2009 1558.9935
#> Jan 2010 1554.6419
#> Feb 2010 1551.5418
#> Mar 2010 1549.6481
#> Apr 2010 1548.8217
#> May 2010 1548.7577
#> Jun 2010 1549.2774
#> Jul 2010 1550.3358
#> Aug 2010 1551.3063
#> Sep 2010 1551.5308
#> Oct 2010 1550.5563
#> Nov 2010 1548.0337
#> Dec 2010 1544.1383
#> Jan 2011 1539.0288
#> Feb 2011 1533.1395
#> Mar 2011 1527.0795
#> Apr 2011 1521.0581
#> May 2011 1515.3844
#> Jun 2011 1510.0544
#> Jul 2011 1505.2061
#> Aug 2011 1501.2505
#> Sep 2011 1498.4543
#> Oct 2011 1497.0441
#> Nov 2011 1497.5673
#> Dec 2011 1500.1902
#> Jan 2012 1504.4958
#> Feb 2012 1509.9189
#> Mar 2012 1515.6200
#> Apr 2012 1520.8562
#> May 2012 1525.1918
#> Jun 2012 1528.4626
#> Jul 2012 1530.4024
#> Aug 2012 1530.9715
#> Sep 2012 1530.3286
#> Oct 2012 1528.7150
#> Nov 2012 1526.5280
#> Dec 2012 1524.1871
#> Jan 2013 1522.1840
#> Feb 2013 1520.7688
#> Mar 2013 1519.9660
#> Apr 2013 1519.8564
#> May 2013 1520.3291
#> Jun 2013 1520.9028
#> Jul 2013 1521.3452
#> Aug 2013 1521.2520
#> Sep 2013 1520.5308
#> Oct 2013 1519.3551
#> Nov 2013 1517.7655
#> Dec 2013 1515.5235
#> Jan 2014 1512.8319
#> Feb 2014 1509.9598
#> Mar 2014 1507.3455
#> Apr 2014 1505.6790
#> May 2014 1505.3289
#> Jun 2014 1506.2010
#> Jul 2014 1508.1630
#> Aug 2014 1510.8223
#> Sep 2014 1513.7678
#> Oct 2014 1517.0401
#> Nov 2014 1520.4742
#> Dec 2014 1524.1352
#> Jan 2015 1528.2007
#> Feb 2015 1532.7451
#> Mar 2015 1538.1279
#> Apr 2015 1544.5036
#> May 2015 1551.7893
#> Jun 2015 1559.8653
#> Jul 2015 1568.2483
#> Aug 2015 1576.3849
#> Sep 2015 1583.7906
#> Oct 2015 1589.5614
#> Nov 2015 1593.0213
#> Dec 2015 1593.9244
#> Jan 2016 1592.3108
#> Feb 2016 1588.5526
#> Mar 2016 1583.2703
#> Apr 2016 1576.8451
#> May 2016 1569.7672
#> Jun 2016 1562.7190
#> Jul 2016 1556.3632
#> Aug 2016 1551.3795
#> Sep 2016 1548.1938
#> Oct 2016 1546.8160
#> Nov 2016 1546.9012
#> Dec 2016 1548.1303
#> Jan 2017 1549.8757
#> Feb 2017 1551.6638
#> Mar 2017 1553.1594
#> Apr 2017 1553.9822
#> May 2017 1553.9205
#> Jun 2017 1553.0558
#> Jul 2017 1551.6255
#> Aug 2017 1550.1023
#>