Month Percent 1999-06-01 52.8434826371414 1999-07-01 52.0382486160040 1999-08-01 52.1126760563380 1999-09-01 53.1187122736419 1999-10-01 53.7726358148893 1999-11-01 51.2575452716298 1999-12-01 45.4728370221328 2000-01-01 42.7558461151622 2000-02-01 43.4935639581657 2000-03-01 47.3980592287194 2000-04-01 50.3820631409612 2000-05-01 51.8220658456899 2000-06-01 51.7515203296979 2000-07-01 51.5801637944028 2000-08-01 50.7908611599297 2000-09-01 51.5708120044163 2000-10-01 51.1235955056180 2000-11-01 48.9021455785041 2000-12-01 43.9250463450073 2001-01-01 41.0495218066196 2001-02-01 41.0289775286522 2001-03-01 45.5682272909164 2001-04-01 49.7500499900020 2001-05-01 51.1392025582093 2001-06-01 51.0136822131229 2001-07-01 50.2219783508754 2001-08-01 50.5403117374633 2001-09-01 51.7874011833143 2001-10-01 52.4246786122003 2001-11-01 50.0346878097126 2001-12-01 45.2899267761726 2002-01-01 42.7837597550133 2002-02-01 44.0378735575501 2002-03-01 46.9154645266112 2002-04-01 49.7075448513148 2002-05-01 50.7042253521127 2002-06-01 50.9015188633023 2002-07-01 49.5524578136464 2002-08-01 48.8551481716545 2002-09-01 50.3874080210516 2002-10-01 50.3040031129919 2002-11-01 48.4268790056322 2002-12-01 44.1843559174179 2003-01-01 40.4411764705882 2003-02-01 40.1564537157758 2003-03-01 44.1991613245288 2003-04-01 47.0794842186297 2003-05-01 48.2230333301316 2003-06-01 47.8235858101630 2003-07-01 47.5208193739830 2003-08-01 46.9438470728793 2003-09-01 48.8236697685517 2003-10-01 48.9278566663490 2003-11-01 47.8898034924109 2003-12-01 44.1562143671608 2004-01-01 42.8266438941076 2004-02-01 43.8959685442228 2004-03-01 46.4333017975402 2004-04-01 48.2357942468471 2004-05-01 48.5001414960853 2004-06-01 48.8507912584778 2004-07-01 48.2624030096402 2004-08-01 47.8660969998591 2004-09-01 48.6804481320021 2004-10-01 49.1529389741670 2004-11-01 47.8459957013363 2004-12-01 44.9197611494682 2005-01-01 42.8504890544946 2005-02-01 42.4990699404762 2005-03-01 45.7284798959978 2005-04-01 47.2744970798183 2005-05-01 48.8522769344687 2005-06-01 48.7478051936050 2005-07-01 47.3441321703817 2005-08-01 47.0403835515397 2005-09-01 48.3719430755768 2005-10-01 48.4402318947272 2005-11-01 47.5430935417146 2005-12-01 43.6719324026451 2006-01-01 42.5451876318928 2006-02-01 42.7013153673404 2006-03-01 45.4512156036812 2006-04-01 47.3311073503179 2006-05-01 48.6611222811186 2006-06-01 49.3540287605570 2006-07-01 47.1805625199435 2006-08-01 46.9014469014469 2006-09-01 48.4127344566057 2006-10-01 50.2991840435177 2006-11-01 49.9457013574661 2006-12-01 45.9895221750519 2007-01-01 43.5713641691462 2007-02-01 43.4620230381570 2007-03-01 45.8228530362918 2007-04-01 48.4981619295257 2007-05-01 49.9574887009442 2007-06-01 50.0938002501340 2007-07-01 48.7520057051168 2007-08-01 47.6588554404376 2007-09-01 48.9176721078779 2007-10-01 49.4535156422851 2007-11-01 48.4769556772029 2007-12-01 45.4705597392874 2008-01-01 43.7458811124292 2008-02-01 43.8351961428884 2008-03-01 45.8285964145168 2008-04-01 48.8286873445884 2008-05-01 49.4908173035077 2008-06-01 50.2301146231330 2008-07-01 49.3332178732248 2008-08-01 48.2197574554400 2008-09-01 49.4687029468703 2008-10-01 49.4596912521441 2008-11-01 49.2882486213825 2008-12-01 45.7346173512869 2009-01-01 43.6114178914281 2009-02-01 43.5406698564593 2009-03-01 45.8463486703250 2009-04-01 48.2263833368399 2009-05-01 49.2218633331935 2009-06-01 50.2968972150205 2009-07-01 48.4675605896560 2009-08-01 47.9890651534606 2009-09-01 49.5488442997816 2009-10-01 49.3360655737705 2009-11-01 48.4934969625311 2009-12-01 44.4818495234232 2010-01-01 45.0008069722402 2010-02-01 44.0430314707771 2010-03-01 46.3397100523184 2010-04-01 48.4861729179911 2010-05-01 50.2213788741303 2010-06-01 50.5880501907721 2010-07-01 49.6087636932707 2010-08-01 48.6344537815126 2010-09-01 49.0850709892065 2010-10-01 49.7364675104836 2010-11-01 48.9995026208058 2010-12-01 46.6098470436040 2011-01-01 43.8091273745554 2011-02-01 45.0771546857358 2011-03-01 47.1475630755409 2011-04-01 48.8514092110652 2011-05-01 50.6906640002963 2011-06-01 51.3537407448337 2011-07-01 50.7242125334604 2011-08-01 50.3780821917808 2011-09-01 49.9526894242667 2011-10-01 51.4048508139071 2011-11-01 50.6158124751688 2011-12-01 47.7833753148615 2012-01-01 46.6750313676286 2012-02-01 47.4498178441317 2012-03-01 49.3737100562238 2012-04-01 51.0529674537332 2012-05-01 52.5856587778170 2012-06-01 52.2084961109351 2012-07-01 50.4995968166041 2012-08-01 50.5220154334998 2012-09-01 51.2033108437087 2012-10-01 51.5484273243730 2012-11-01 51.5284294783329 2012-12-01 48.8161105192618 2013-01-01 47.0322448141302 2013-02-01 48.0786934433496 2013-03-01 49.8166010052982 2013-04-01 52.0906630581867 2013-05-01 53.6242628475147 2013-06-01 53.4340382678751 2013-07-01 52.7508523297012 2013-08-01 52.3071293123524 2013-09-01 52.1803913777690 2013-10-01 53.3913387383824 2013-11-01 52.8097628186202 2013-12-01 50.0979623824451 2014-01-01 49.8358524297091 2014-02-01 50.7134306144239 2014-03-01 51.9743622777635 2014-04-01 54.0094264003334 2014-05-01 54.7413105231241 2014-06-01 54.2799949161159 2014-07-01 53.9064723179562 2014-08-01 53.6922883381557 2014-09-01 54.0656383943935 2014-10-01 54.3912610481763 2014-11-01 53.8978328173375 2014-12-01 52.2114081557226 2015-01-01 51.4171032876796 2015-02-01 52.0835238530712 2015-03-01 53.2223334243169 2015-04-01 54.0733812081347 2015-05-01 55.4398078655059 2015-06-01 55.4257893007557 2015-07-01 55.2572175359392 2015-08-01 54.8468032351378 2015-09-01 55.3889931940859 2015-10-01 55.4959472855560 2015-11-01 55.2261728824365 2015-12-01 53.7745902819782 2016-01-01 52.5514002634442 2016-02-01 52.6870089946488 2016-03-01 52.9426744383453 2016-04-01 54.6213996399640 2016-05-01 55.7603042335440 2016-06-01 56.1365468545854 2016-07-01 55.7191487006338 2016-08-01 55.3915346835164 2016-09-01 55.5732834507042 2016-10-01 55.7237672096978 2016-11-01 55.6545991468883 2016-12-01 54.0810206640859 2017-01-01 52.9287053899051 2017-02-01 53.4077667271890 2017-03-01 54.8257227776277 2017-04-01 55.8270474137931 2017-05-01 56.4072949961054 2017-06-01 56.5946278889157 2017-07-01 56.3038893782868 2017-08-01 56.5010373995850 2017-09-01 57.0205434062293 2017-10-01 57.5741567394807 2017-11-01 57.5072387470387 2017-12-01 55.4325586275641 2018-01-01 54.5542483660131 2018-02-01 54.0399697751374 2018-03-01 55.1717869478277 2018-04-01 56.0812734567102 2018-05-01 56.6014859147663 2018-06-01 56.6646096883678 2018-07-01 56.0034899535528 2018-08-01 56.2552820959357 2018-09-01 56.3516000408956