Quarter	Percent, Seasonally Adjusted
2005-01-01	51.3420857821064
2005-04-01	54.1548020484802
2005-07-01	54.1061135197229
2005-10-01	54.3529580832564
2006-01-01	53.6901376024394
2006-04-01	53.0615246616164
2006-07-01	52.9153273559734
2006-10-01	53.0218989734394
2007-01-01	55.4393707076054
2007-04-01	56.2186356046741
2007-07-01	57.5324621966428
2007-10-01	54.9563980841579
2008-01-01	54.7197694704871
2008-04-01	56.1542507060040
2008-07-01	55.8939813783688
2008-10-01	56.7820782764283
2009-01-01	57.7373578398599
2009-04-01	57.9116790803183
2009-07-01	57.3936321256416
2009-10-01	55.6645348314661
2010-01-01	56.2943814928285
2010-04-01	57.0412825544860
2010-07-01	56.0743003641770
2010-10-01	56.4460146505328
2011-01-01	57.4053326050446
2011-04-01	57.7139261640397
2011-07-01	58.2219703536780
2011-10-01	58.4517546660262
2012-01-01	58.1132129225804
2012-04-01	58.1199006492827
2012-07-01	59.8373553458353
2012-10-01	58.8006407362904
2013-01-01	59.1419728302311
2013-04-01	59.4142084043107
2013-07-01	59.8953679957600
2013-10-01	61.9586691081428
2014-01-01	62.6006041831649
2014-04-01	62.0005340851886
2014-07-01	63.6665275105578
2014-10-01	63.6854046063916
2015-01-01	64.0950736403145
2015-04-01	66.5485404398891
2015-07-01	66.6965427535482
2015-10-01	67.3803870354337
2016-01-01	68.6708152711119
2016-04-01	70.3865880779786
2016-07-01	70.7666459962580
2016-10-01	70.2470493695971
2017-01-01	70.2858363012340
2017-04-01	71.1781357002261
2017-07-01	71.1433867892919
2017-10-01	72.4444063940045
2018-01-01	73.2432103756999
2018-04-01	73.3203810473556