Quarter	Percent
2005-01-01	38.8382389797624
2005-04-01	38.9504276504520
2005-07-01	39.4524502984829
2005-10-01	39.8304186617286
2006-01-01	39.6011482673158
2006-04-01	39.9204654702435
2006-07-01	40.1722697320559
2006-10-01	40.3460314397768
2007-01-01	39.8380213730929
2007-04-01	40.1895421131774
2007-07-01	40.1024987549654
2007-10-01	41.0045530416011
2008-01-01	40.3277658628699
2008-04-01	40.7663989571835
2008-07-01	40.3861657548267
2008-10-01	40.0376010574670
2009-01-01	39.7459342259477
2009-04-01	39.9658988983765
2009-07-01	40.4654335413866
2009-10-01	40.8643157789890
2010-01-01	40.0161281621847
2010-04-01	40.8340644478694
2010-07-01	40.5812763565401
2010-10-01	39.9863708916987
2011-01-01	39.9466430666260
2011-04-01	40.5948579144487
2011-07-01	40.8696136350187
2011-10-01	41.5719032587696
2012-01-01	40.9508378937143
2012-04-01	41.9245371882425
2012-07-01	42.0341970297399
2012-10-01	41.5282266866855
2013-01-01	41.0169568063730
2013-04-01	41.6955010715971
2013-07-01	41.5886230025643
2013-10-01	42.0078011197163
2014-01-01	41.1667099895712
2014-04-01	41.2392174144520
2014-07-01	41.2541848974264
2014-10-01	41.4489629206809
2015-01-01	41.3233007154358
2015-04-01	41.6529913036458
2015-07-01	41.8712998819640
2015-10-01	42.4479133012401
2016-01-01	41.6890348991388
2016-04-01	42.1182788866945
2016-07-01	42.5073389605048
2016-10-01	42.4645059595246
2017-01-01	42.1429362408345
2017-04-01	42.3125310046836
2017-07-01	42.4002402871693
2017-10-01	42.6397540466347
2018-01-01	42.5443339948178
2018-04-01	43.1707990947764