Quarter	Percent
2005-01-01	38.3519617544776
2005-04-01	39.1078223616110
2005-07-01	39.5992426743851
2005-10-01	40.1583371063792
2006-01-01	39.9568064983385
2006-04-01	40.1908339545245
2006-07-01	40.7148055950204
2006-10-01	41.0011886080738
2007-01-01	40.1927349136971
2007-04-01	40.6755197699576
2007-07-01	40.3093128967230
2007-10-01	41.7827887230743
2008-01-01	40.6752294081779
2008-04-01	41.1596771991075
2008-07-01	40.2663423279004
2008-10-01	40.1597161089355
2009-01-01	39.5881232123569
2009-04-01	39.9759419919283
2009-07-01	40.9338529350319
2009-10-01	41.3766174355678
2010-01-01	40.0447476373130
2010-04-01	40.9271846504187
2010-07-01	40.5824249917679
2010-10-01	39.6916590684555
2011-01-01	39.4156206844873
2011-04-01	40.4020344222943
2011-07-01	40.5427362722933
2011-10-01	42.1830970283969
2012-01-01	40.7948709011384
2012-04-01	42.2223836060602
2012-07-01	42.1202465263110
2012-10-01	41.6517077939565
2013-01-01	40.6652529328742
2013-04-01	42.0020805402636
2013-07-01	41.7372741698302
2013-10-01	42.3699921906960
2014-01-01	41.0332194625435
2014-04-01	41.1887302556756
2014-07-01	40.7248646876554
2014-10-01	40.8740458420403
2015-01-01	40.7246423975639
2015-04-01	41.1323597018480
2015-07-01	41.3860419119688
2015-10-01	42.4040372266514
2016-01-01	41.1973577126422
2016-04-01	41.6859842847763
2016-07-01	42.0765551926656
2016-10-01	41.7994250914347
2017-01-01	41.3238767991568
2017-04-01	41.3653165840686
2017-07-01	41.2534777232134
2017-10-01	41.6693454585260
2018-01-01	41.2440771866962
2018-04-01	42.3036406562981