Month Percent 2005-01-01 77.0493317731108 2005-02-01 77.1992680639060 2005-03-01 77.2046714710904 2005-04-01 76.8665115930067 2005-05-01 76.4157814871017 2005-06-01 76.8367112810708 2005-07-01 77.4760918560029 2005-08-01 77.7710725223662 2005-09-01 77.5107359691989 2005-10-01 77.2837884239284 2005-11-01 76.9249202474202 2005-12-01 77.6311839577330 2006-01-01 77.5574928603638 2006-02-01 78.2118822132221 2006-03-01 78.9074834227976 2006-04-01 79.6495915950566 2006-05-01 79.3882272031011 2006-06-01 79.2043259945925 2006-07-01 78.5898103612022 2006-08-01 78.8992082825822 2006-09-01 79.7423327554254 2006-10-01 79.9595111787567 2006-11-01 80.0452819164476 2006-12-01 79.3444351685048 2007-01-01 79.7545741788522 2007-02-01 79.7476876244000 2007-03-01 80.6438438088014 2007-04-01 80.5862545328959 2007-05-01 80.6137457339102 2007-06-01 80.2646384366677 2007-07-01 79.7701797673599 2007-08-01 79.6257942713837 2007-09-01 79.8712343787340 2007-10-01 80.1599221845542 2007-11-01 80.9208181882974 2007-12-01 81.3846612104793 2008-01-01 81.3895850352381 2008-02-01 81.5536876355748 2008-03-01 81.1554814057370 2008-04-01 81.1176776637895 2008-05-01 81.4044333801213 2008-06-01 81.1770460163655 2008-07-01 81.0798295980737 2008-08-01 80.7337877209866 2008-09-01 80.8046711066509 2008-10-01 81.3781468985206 2008-11-01 81.3111495469448 2008-12-01 81.0194852611486 2009-01-01 81.0000516022499 2009-02-01 81.4543579164518 2009-03-01 81.6920621847009 2009-04-01 81.7568854519828 2009-05-01 81.3609430235630 2009-06-01 80.9272440944882 2009-07-01 81.4013655236821 2009-08-01 81.6586416624430 2009-09-01 81.5165100873989 2009-10-01 81.4885981879263 2009-11-01 81.3810048507416 2009-12-01 81.9059769088474 2010-01-01 82.2120794507731 2010-02-01 82.0378634380400 2010-03-01 81.2559059582456 2010-04-01 81.4900240733038 2010-05-01 81.2835028305195 2010-06-01 81.1549143461056 2010-07-01 80.9212459594476 2010-08-01 82.0479957033348 2010-09-01 83.0707803992740 2010-10-01 83.6997990155372 2010-11-01 83.3883625227294 2010-12-01 82.7013877237974 2011-01-01 82.6039581680149 2011-02-01 83.1237785783240 2011-03-01 83.4570118636858 2011-04-01 83.1265154756811 2011-05-01 83.1772690945093 2011-06-01 82.6500820384133 2011-07-01 82.6963404729869 2011-08-01 82.1906303630765 2011-09-01 82.3045267489712 2011-10-01 82.3485011861117 2011-11-01 83.2201005983456 2011-12-01 83.2436950359764 2012-01-01 84.1989600470741 2012-02-01 84.6912726058119 2012-03-01 85.6761353838205 2012-04-01 85.2291380706081 2012-05-01 85.3292015890592 2012-06-01 84.5784475229422 2012-07-01 84.5091548609165 2012-08-01 84.4072251700079 2012-09-01 84.8585284597591 2012-10-01 85.4427763679821 2012-11-01 85.6013210610978 2012-12-01 85.4020830822471 2013-01-01 85.2845797996316 2013-02-01 85.8312155873374 2013-03-01 86.1710463941174 2013-04-01 86.5400019108880 2013-05-01 85.4895770716662 2013-06-01 84.6880322210370 2013-07-01 84.7973787857311 2013-08-01 85.1833135806996 2013-09-01 85.3927599597829 2013-10-01 85.8271570646910 2013-11-01 86.1675397660245 2013-12-01 85.8723817498616 2014-01-01 85.8629944444584 2014-02-01 85.7921712976904 2014-03-01 86.8923643877870 2014-04-01 86.8794840335777 2014-05-01 86.9291225157964 2014-06-01 85.6291607054362 2014-07-01 85.3572554178854 2014-08-01 85.4197339709324 2014-09-01 85.4446316258814 2014-10-01 85.5003760364949 2014-11-01 84.9103395674199 2014-12-01 85.0525171519739 2015-01-01 85.1429949589953 2015-02-01 85.3807389925770 2015-03-01 86.0662592515570 2015-04-01 86.1377641257825 2015-05-01 85.7451557603194 2015-06-01 85.4007262987949 2015-07-01 85.1493910196374 2015-08-01 85.4503651079399 2015-09-01 85.5507708790081 2015-10-01 85.6191067600784 2015-11-01 86.0036111852394 2015-12-01 85.8450822034590 2016-01-01 85.6408336495576 2016-02-01 84.8331390718484 2016-03-01 85.3026659400086 2016-04-01 85.0584666698136 2016-05-01 84.9585067409994 2016-06-01 84.6321076357199 2016-07-01 84.4992299356271 2016-08-01 84.7862121194073 2016-09-01 84.3872022935007 2016-10-01 84.6546465602246 2016-11-01 84.7396623986493 2016-12-01 85.3676429792360 2017-01-01 84.9591492954146 2017-02-01 85.3664412902075 2017-03-01 85.4996703791587 2017-04-01 86.3380008012676 2017-05-01 86.2045904831268 2017-06-01 86.1617690806522 2017-07-01 85.4932216916121 2017-08-01 85.9268510962834 2017-09-01 86.3203989568531 2017-10-01 87.2806445182588 2017-11-01 87.3466486303765 2017-12-01 87.0654212108417 2018-01-01 87.1973905863814 2018-02-01 87.0232982290592 2018-03-01 86.9873259519943 2018-04-01 86.9134132116602 2018-05-01 87.1641726916615 2018-06-01 86.7576048835480 2018-07-01 86.5100725977826 2018-08-01 86.1189946740446