Quarter	Percent, Seasonally Adjusted
2001-01-01	51.1176581323396
2001-04-01	50.1727524073765
2001-07-01	49.8308628215626
2001-10-01	48.8914194944696
2002-01-01	48.8177741340093
2002-04-01	48.3473914402522
2002-07-01	48.2162350449287
2002-10-01	48.5073711804354
2003-01-01	47.1505206687100
2003-04-01	48.0485163560593
2003-07-01	47.2999348496175
2003-10-01	46.5050864049145
2004-01-01	46.7827161524259
2004-04-01	45.9369120990409
2004-07-01	47.5797780864911
2004-10-01	47.9930147064607
2005-01-01	47.6405195640931
2005-04-01	50.6445499655056
2005-07-01	49.1371359749473
2005-10-01	48.5342851293864
2006-01-01	49.0669017501439
2006-04-01	51.1940575115550
2006-07-01	51.0304490149046
2006-10-01	51.9800287192250
2007-01-01	53.1576442013786
2007-04-01	49.3983862254203
2007-07-01	52.2169147479678
2007-10-01	52.2882681621452
2008-01-01	52.6466037965347
2008-04-01	52.8075833586217
2008-07-01	52.8165062254826
2008-10-01	52.1972579048761
2009-01-01	51.3431025532197
2009-04-01	51.6347148023281
2009-07-01	50.6899145875591
2009-10-01	50.5634678028353
2010-01-01	50.5535626408911
2010-04-01	52.0393332062539
2010-07-01	52.4781675973894
2010-10-01	52.7490247642153
2011-01-01	53.3514221037644
2011-04-01	53.6016384677899
2011-07-01	53.1431607855703
2011-10-01	52.5937649998779
2012-01-01	51.1865138866138
2012-04-01	51.3735750400853
2012-07-01	52.1450148539730
2012-10-01	52.3876678546971
2013-01-01	53.3642265085901
2013-04-01	53.5128212388967
2013-07-01	54.2954521426641
2013-10-01	54.3130329992617
2014-01-01	54.6894014388136
2014-04-01	54.8081915096779
2014-07-01	55.1042589968800
2014-10-01	54.9251907627720
2015-01-01	54.3405647449334
2015-04-01	53.0646684035886
2015-07-01	53.8694586354434
2015-10-01	54.0522743304781
2016-01-01	54.7736134460454
2016-04-01	55.2544955899080
2016-07-01	52.7448950615125
2016-10-01	53.9497593342772
2017-01-01	54.1823011695577
2017-04-01	54.0187127615020
2017-07-01	54.2190876648586
2017-10-01	53.8814700365894
2018-01-01	53.7738977268735
2018-04-01	52.5994626930803