Quarter	Percent, Seasonally Adjusted
2006-01-01	52.5184747833576
2006-04-01	53.1059818406688
2006-07-01	53.2932596752802
2006-10-01	53.8219518929358
2007-01-01	53.5476039937834
2007-04-01	53.2361284716387
2007-07-01	53.3876258934456
2007-10-01	52.7732369267096
2008-01-01	53.1840790705308
2008-04-01	53.6385084068693
2008-07-01	53.7122379625038
2008-10-01	53.1648992516617
2009-01-01	52.2353695822653
2009-04-01	52.2698879641602
2009-07-01	52.9669302312255
2009-10-01	53.9083090376700
2010-01-01	54.7422970801937
2010-04-01	55.1857196036132
2010-07-01	55.3595576587492
2010-10-01	56.1386999949684
2011-01-01	57.1049288334312
2011-04-01	57.2710219615217
2011-07-01	57.9993874691406
2011-10-01	57.7006297838890
2012-01-01	57.4694344410365
2012-04-01	58.2097465462249
2012-07-01	58.4335040527346
2012-10-01	59.1714569555996
2013-01-01	59.1879805339495
2013-04-01	59.1918273788325
2013-07-01	58.8726788249206
2013-10-01	59.1185139596018
2014-01-01	58.8637231708225
2014-04-01	58.8121362467348
2014-07-01	58.7680238981850
2014-10-01	58.7714258860008
2015-01-01	59.3190254935424
2015-04-01	59.4522641513359
2015-07-01	59.6442557351439
2015-10-01	59.8496011638956
2016-01-01	60.1424206415433
2016-04-01	60.2402663596217
2016-07-01	59.8391942936143
2016-10-01	59.9190782339200
2017-01-01	60.3912019755110
2017-04-01	60.9567444783395
2017-07-01	61.5315831986134
2017-10-01	61.6652499239201
2018-01-01	61.9227504649022
2018-04-01	61.3007358479137