Month Index source base 1985-01-01 3.11603027 1985-02-01 3.33430292 1985-03-01 3.76081270 1985-04-01 4.22746458 1985-05-01 4.70415198 1985-06-01 5.36147882 1985-07-01 6.69620354 1985-08-01 7.37611030 1985-09-01 7.76247799 1985-10-01 7.92053749 1985-11-01 8.37464496 1985-12-01 8.61047978 1986-01-01 9.01086708 1986-02-01 8.99899506 1986-03-01 9.15926740 1986-04-01 9.41451594 1986-05-01 9.62227638 1986-06-01 9.83597283 1986-07-01 10.28710980 1986-08-01 10.45925410 1986-09-01 10.71450270 1986-10-01 11.02911140 1986-11-01 11.38527210 1986-12-01 11.50992840 1987-01-01 12.05604150 1987-02-01 12.37065020 1987-03-01 12.56653860 1987-04-01 12.95237940 1987-05-01 13.17201190 1987-06-01 13.39164440 1987-07-01 13.64689290 1987-08-01 13.75967710 1987-09-01 13.99118160 1987-10-01 14.32953430 1987-11-01 14.53729480 1987-12-01 14.87564750 1988-01-01 15.12547650 1988-02-01 15.23322700 1988-03-01 15.50260320 1988-04-01 15.66422900 1988-05-01 15.93360520 1988-06-01 16.17604380 1988-07-01 16.39154480 1988-08-01 16.58010820 1988-09-01 16.79560920 1988-10-01 16.99764140 1988-11-01 17.64414440 1988-12-01 18.11555280 1989-01-01 18.61389890 1989-02-01 19.12571380 1989-03-01 19.34121480 1989-04-01 19.66446630 1989-05-01 19.86649850 1989-06-01 20.20321880 1989-07-01 20.48606380 1989-08-01 20.78237770 1989-09-01 21.02481630 1989-10-01 21.29419260 1989-11-01 21.55010000 1989-12-01 21.73866340 1990-01-01 22.41210400 1990-02-01 22.58719860 1990-03-01 22.95085650 1990-04-01 23.28757680 1990-05-01 23.63776600 1990-06-01 23.77245410 1990-07-01 24.02836150 1990-08-01 24.52670760 1990-09-01 24.64792690 1990-10-01 25.06546010 1990-11-01 25.34830520 1990-12-01 25.55033740 1991-01-01 26.07562100 1991-02-01 26.49315420 1991-03-01 26.73559290 1991-04-01 27.40903350 1991-05-01 27.81309790 1991-06-01 28.25756870 1991-07-01 28.85019640 1991-08-01 29.34854250 1991-09-01 29.76607570 1991-10-01 30.11626480 1991-11-01 30.49339150 1991-12-01 30.54726680 1992-01-01 30.72236140 1992-02-01 32.32515000 1992-03-01 32.44636940 1992-04-01 32.74268320 1992-05-01 33.09287240 1992-06-01 33.51040550 1992-07-01 33.83365710 1992-08-01 34.21078380 1992-09-01 36.06947990 1992-10-01 36.46007550 1992-11-01 36.67557650 1992-12-01 36.85067110 1993-01-01 37.41636120 1993-02-01 37.76655030 1993-03-01 38.03592660 1993-04-01 38.23795870 1993-05-01 37.92817610 1993-06-01 38.08980180 1993-07-01 38.42652210 1993-08-01 38.83058650 1993-09-01 38.95180580 1993-10-01 39.16730680 1993-11-01 39.38280780 1993-12-01 39.57137120 1994-01-01 40.36593680 1994-02-01 40.82770160 1994-03-01 41.05858400 1994-04-01 41.75123110 1994-05-01 42.17451550 1994-06-01 42.71324110 1994-07-01 43.86765300 1994-08-01 44.21397660 1994-09-01 44.40637860 1994-10-01 44.90662370 1994-11-01 45.21446690 1994-12-01 45.83015330 1995-01-01 46.89735320 1995-02-01 47.05552300 1995-03-01 47.33232020 1995-04-01 47.60911740 1995-05-01 47.88591460 1995-06-01 48.12316940 1995-07-01 48.28133920 1995-08-01 48.43950900 1995-09-01 48.67676370 1995-10-01 48.91401850 1995-11-01 49.15127320 1995-12-01 49.62578270 1996-01-01 50.77251390 1996-02-01 51.36565080 1996-03-01 51.56336310 1996-04-01 52.23558480 1996-05-01 52.90780660 1996-06-01 53.73819820 1996-07-01 54.56858970 1996-08-01 54.88492940 1996-09-01 55.24081150 1996-10-01 55.75486340 1996-11-01 56.26891540 1996-12-01 56.58525500 1997-01-01 57.45518910 1997-02-01 57.73198620 1997-03-01 58.12741080 1997-04-01 58.72054770 1997-05-01 58.95780240 1997-06-01 59.39276940 1997-07-01 60.18361850 1997-08-01 60.57904310 1997-09-01 60.97446770 1997-10-01 61.40943470 1997-11-01 61.52806210 1997-12-01 61.76531680 1998-01-01 62.16074140 1998-02-01 62.43753860 1998-03-01 62.67479330 1998-04-01 62.91204800 1998-05-01 62.91204800 1998-06-01 63.26793010 1998-07-01 63.74243960 1998-08-01 63.82152450 1998-09-01 64.13786420 1998-10-01 65.91727470 1998-11-01 66.82675120 1998-12-01 67.45943050 1999-01-01 68.43656420 1999-02-01 68.56460260 1999-03-01 69.01273730 1999-04-01 69.52489120 1999-05-01 69.58891040 1999-06-01 69.65292970 1999-07-01 69.97302580 1999-08-01 70.22910280 1999-09-01 70.48517970 1999-10-01 70.74125670 1999-11-01 70.86929520 1999-12-01 70.74125670 2000-01-01 71.06135290 2000-02-01 71.18939130 2000-03-01 71.25341060 2000-04-01 71.50948750 2000-05-01 71.70154520 2000-06-01 72.08566070 2000-07-01 72.53379530 2000-08-01 72.72585300 2000-09-01 72.85389150 2000-10-01 72.91791070 2000-11-01 72.91791070 2000-12-01 72.98193000 2001-01-01 73.01547600 2001-02-01 72.94332640 2001-03-01 72.94332640 2001-04-01 72.87117670 2001-05-01 73.08762570 2001-06-01 76.19006200 2001-07-01 76.69510970 2001-08-01 77.41660650 2001-09-01 77.41660650 2001-10-01 77.41660650 2001-11-01 77.20015750 2001-12-01 77.34445680 2002-01-01 77.34445680 2002-02-01 77.41660650 2002-03-01 77.92165430 2002-04-01 78.35455240 2002-05-01 78.71530070 2002-06-01 79.29249820 2002-07-01 80.51904270 2002-08-01 81.16838990 2002-09-01 81.74558730 2002-10-01 81.74558730 2002-11-01 81.96203630 2002-12-01 81.74558730 2003-01-01 81.55309200 2003-02-01 81.55309200 2003-03-01 81.79248460 2003-04-01 82.11167480 2003-05-01 82.19147230 2003-06-01 82.35106740 2003-07-01 82.19147230 2003-08-01 82.11167480 2003-09-01 81.87228220 2003-10-01 81.47329440 2003-11-01 81.39349690 2003-12-01 81.39349690 2004-01-01 81.79248460 2004-02-01 82.75005520 2004-03-01 83.46823310 2004-04-01 83.70762570 2004-05-01 83.70762570 2004-06-01 84.02681590 2004-07-01 83.94701830 2004-08-01 83.94701830 2004-09-01 83.94701830 2004-10-01 84.02681590 2004-11-01 84.02681590 2004-12-01 84.10661340 2005-01-01 84.42580360 2005-02-01 84.50560120 2005-03-01 84.74499380 2005-04-01 84.82479140 2005-05-01 84.90458890 2005-06-01 84.82479140 2005-07-01 85.22377910 2005-08-01 85.46317170 2005-09-01 85.46317170 2005-10-01 85.54296930 2005-11-01 85.62276680 2005-12-01 85.94195700 2006-01-01 86.10155210 2006-02-01 86.50053980 2006-03-01 86.42074230 2006-04-01 86.81973000 2006-05-01 86.89952750 2006-06-01 87.13892020 2006-07-01 87.21871770 2006-08-01 87.37831280 2006-09-01 87.53790790 2006-10-01 87.53790790 2006-11-01 87.61770550 2006-12-01 87.45811040 2007-01-01 87.66853650 2007-02-01 87.58147740 2007-03-01 87.58147740 2007-04-01 88.10383210 2007-05-01 88.36500950 2007-06-01 88.53912770 2007-07-01 88.36500950 2007-08-01 88.53912770 2007-09-01 88.88736420 2007-10-01 89.14854160 2007-11-01 89.23560070 2007-12-01 89.14854160 2008-01-01 89.49677810 2008-02-01 89.75795540 2008-03-01 89.75795540 2008-04-01 89.67089630 2008-05-01 89.58383720 2008-06-01 89.93207370 2008-07-01 90.28031020 2008-08-01 90.28031020 2008-09-01 91.06384230 2008-10-01 91.15090140 2008-11-01 91.06384230 2008-12-01 90.71560580 2009-01-01 91.09518360 2009-02-01 91.54614980 2009-03-01 91.36576330 2009-04-01 91.27557010 2009-05-01 90.91479710 2009-06-01 91.45595660 2009-07-01 92.44808230 2009-08-01 92.80885530 2009-09-01 92.98924180 2009-10-01 93.16962830 2009-11-01 93.07943510 2009-12-01 92.98924180 2010-01-01 92.89904860 2010-02-01 93.07943510 2010-03-01 92.71866210 2010-04-01 92.89904860 2010-05-01 92.44808230 2010-06-01 92.89904860 2010-07-01 93.35001480 2010-08-01 93.62059460 2010-09-01 93.25982160 2010-10-01 93.44020810 2010-11-01 93.89117430 2010-12-01 93.53040130 2011-01-01 93.72864610 2011-02-01 94.10132460 2011-03-01 94.28766390 2011-04-01 94.47400310 2011-05-01 94.38083350 2011-06-01 94.28766390 2011-07-01 96.24422610 2011-08-01 96.05788680 2011-09-01 96.24422610 2011-10-01 96.71007420 2011-11-01 96.71007420 2011-12-01 95.96471720 2012-01-01 96.33739570 2012-02-01 96.15105640 2012-03-01 96.33739570 2012-04-01 96.52373500 2012-05-01 96.61690460 2012-06-01 97.08275270 2012-07-01 97.92127940 2012-08-01 97.82810980 2012-09-01 98.10761860 2012-10-01 98.57346680 2012-11-01 98.66663640 2012-12-01 98.38712750 2013-01-01 97.94643520 2013-02-01 98.43324650 2013-03-01 98.23852200 2013-04-01 98.14115970 2013-05-01 98.43324650 2013-06-01 98.92005780 2013-07-01 99.21214460 2013-08-01 99.69895590 2013-09-01 99.89368040 2013-10-01 99.79631810 2013-11-01 99.69895590 2013-12-01 99.21214460 2014-01-01 99.11478230 2014-02-01 99.50423140 2014-03-01 99.21214460 2014-04-01 99.30950680 2014-05-01 99.40686910 2014-06-01 99.50423140 2014-07-01 99.69895590 2014-08-01 99.89368040 2014-09-01 99.89368040 2014-10-01 99.99104270 2014-11-01 99.69895590 2014-12-01 99.99104270 2015-01-01 100.39840600 2015-02-01 100.39840600 2015-03-01 100.09960200 2015-04-01 99.80079680 2015-05-01 99.80079680 2015-06-01 99.90039840 2015-07-01 100.19920300 2015-08-01 100.29880500 2015-09-01 100.39840600 2015-10-01 100.19920300 2015-11-01 100.09960200 2015-12-01 99.70119520 2016-01-01 99.60159360 2016-02-01 99.70119520 2016-03-01 99.60159360 2016-04-01 99.40239040 2016-05-01 99.30278880 2016-06-01 99.60159360 2016-07-01 100.19920300 2016-08-01 100.29880500 2016-09-01 100.59761000 2016-10-01 100.49800800 2016-11-01 100.49800800 2016-12-01 100.49800800 2017-01-01 100.40000000 2017-02-01 100.50000000 2017-03-01 100.70000000 2017-04-01 100.50000000 2017-05-01 100.60000000 2017-06-01 101.00000000 2017-07-01 101.30000000 2017-08-01 101.20000000 2017-09-01 101.40000000 2017-10-01 101.50000000 2017-11-01 101.50000000 2017-12-01 101.50000000 2018-01-01 101.70000000 2018-02-01 101.70000000 2018-03-01 101.50000000 2018-04-01 101.40000000 2018-05-01 101.70000000 2018-06-01 101.70000000 2018-07-01 101.20000000 2018-08-01 101.10000000 2018-09-01 101.30000000