Quarter	Percent
2005-01-01	30.0328590164859
2005-04-01	30.7989035211666
2005-07-01	31.2155465226349
2005-10-01	31.6504584606835
2006-01-01	32.6136187810333
2006-04-01	33.5275733146396
2006-07-01	32.3280163024383
2006-10-01	33.0828014779980
2007-01-01	33.5870612525809
2007-04-01	33.6798191762474
2007-07-01	32.4872340137344
2007-10-01	35.1331052324126
2008-01-01	35.4718876829317
2008-04-01	34.7164308920212
2008-07-01	34.2838981466479
2008-10-01	37.0920796230976
2009-01-01	36.0014836795252
2009-04-01	36.4399309287189
2009-07-01	35.9983316451171
2009-10-01	37.8018704950259
2010-01-01	37.9311548260258
2010-04-01	39.6328887666712
2010-07-01	42.1103364791858
2010-10-01	43.3896793281991
2011-01-01	41.6581088989742
2011-04-01	43.2993549239339
2011-07-01	43.3262448860631
2011-10-01	44.6429331404009
2012-01-01	45.8556965755299
2012-04-01	46.0919195433059
2012-07-01	47.1431325801700
2012-10-01	48.0041791436942
2013-01-01	45.9157396197244
2013-04-01	47.3420349017398
2013-07-01	45.6861076617945
2013-10-01	48.8256962292837
2014-01-01	49.2051908080657
2014-04-01	47.8667140644261
2014-07-01	48.1614460215676
2014-10-01	48.5001053284052
2015-01-01	46.6259057829874
2015-04-01	47.7182685258177
2015-07-01	49.0568963460090
2015-10-01	51.0545496849241
2016-01-01	48.9679624736840
2016-04-01	48.5983236499297
2016-07-01	48.6834902244410
2016-10-01	49.7264970949884
2017-01-01	49.1351816030286
2017-04-01	49.0858048699209
2017-07-01	51.9412483071810
2017-10-01	52.3428926277389
2018-01-01	51.6206612279134
2018-04-01	50.6265819456024
2018-07-01	50.7749576176894