Quarter	Percent, Seasonally Adjusted
1998-04-01	67.4629718107979
1999-04-01	64.0535372848948
2000-04-01	66.5320665083135
2001-04-01	64.6559849198869
2002-04-01	65.3666510976179
2003-04-01	64.5794824399261
2004-04-01	62.6481312670921
2005-04-01	60.9410175596578
2006-04-01	64.5893612285778
2007-04-01	65.3829225352113
2008-04-01	63.5615251299827
2009-04-01	60.8509728458414
2010-01-01	62.9721816716526
2010-04-01	63.7488543864963
2010-07-01	64.0902415064476
2010-10-01	63.1092756139510
2011-01-01	64.1540558899357
2011-04-01	63.2750612654568
2011-07-01	64.0213727766584
2011-10-01	64.3856060662905
2012-01-01	62.7330975781812
2012-04-01	62.9511855135928
2012-07-01	63.2762896548695
2012-10-01	62.7711402312240
2013-01-01	64.3437697510094
2013-04-01	63.5575238474866
2013-07-01	61.9144697802765
2013-10-01	61.8644279883134
2014-01-01	61.7977335453577
2014-04-01	62.3538983490718
2014-07-01	62.9287143201808
2014-10-01	62.6713437471657
2015-01-01	60.8688452877452
2015-04-01	61.0170044995158
2015-07-01	60.5916693146234
2015-10-01	59.8934795100855
2016-01-01	61.8155896449032
2016-04-01	60.9872437737528
2016-07-01	60.7884301422905
2016-10-01	63.8072906052243
2017-01-01	63.5015440271906
2017-04-01	63.9503612300052
2017-07-01	64.5207940499454
2017-10-01	63.5113554768364
2018-01-01	62.4446477793390
2018-04-01	63.2118528982373