Quarter	Percent, Seasonally Adjusted
2000-01-01	57.0954559351824
2000-04-01	57.1672751732973
2000-07-01	56.7162093039117
2000-10-01	56.5676864942996
2001-01-01	56.1715506145025
2001-04-01	55.3374705110365
2001-07-01	54.7908304177426
2001-10-01	53.9803265643336
2002-01-01	53.4464451284801
2002-04-01	53.0431531734794
2002-07-01	52.6148859331296
2002-10-01	52.3572159850405
2003-01-01	52.2645145298634
2003-04-01	52.4145153636771
2003-07-01	52.4771070749841
2003-10-01	52.5893854606740
2004-01-01	52.6845049076799
2004-04-01	52.8587728110296
2004-07-01	52.9866702702420
2004-10-01	54.0361475987993
2005-01-01	54.4056835090584
2005-04-01	54.2313646000504
2005-07-01	55.1611179799737
2005-10-01	55.3941760020646
2006-01-01	55.2582078291090
2006-04-01	56.2009265943220
2006-07-01	57.2276102674374
2006-10-01	57.7120049531011
2007-01-01	58.2889617934887
2007-04-01	59.1712447138123
2007-07-01	59.1434912659759
2007-10-01	59.9637399500658
2008-01-01	61.2952938176405
2008-04-01	61.5505678729733
2008-07-01	61.9075555924254
2008-10-01	62.2690837854829
2009-01-01	62.0993305210772
2009-04-01	61.7006874130151
2009-07-01	61.7956006763521
2009-10-01	61.1398414901661
2010-01-01	60.5445707294517
2010-04-01	60.8860837925336
2010-07-01	61.0118315408884
2010-10-01	61.0568898573272
2011-01-01	61.2651237640785
2011-04-01	61.5511211610035
2011-07-01	61.4994392833487
2011-10-01	61.4321928598512
2012-01-01	61.4721934814933
2012-04-01	61.6902331281917
2012-07-01	61.4357383611103
2012-10-01	61.5867884207441
2013-01-01	61.5023930088900
2013-04-01	61.5971682072697
2013-07-01	61.6395169564088
2013-10-01	61.7785630408489
2014-01-01	62.0784168440621
2014-04-01	62.5589300484952
2014-07-01	63.1386621218417
2014-10-01	63.2092214634368
2015-01-01	63.2129655985886
2015-04-01	63.0218925072792
2015-07-01	63.6491625681335
2015-10-01	64.1150369930908
2016-01-01	64.4443709519217
2016-04-01	64.6001660888902
2016-07-01	64.6289522433350
2016-10-01	65.2882649993696
2017-01-01	65.7778137799886
2017-04-01	65.9835070777818
2017-07-01	66.1748530816854
2017-10-01	66.1478103214956
2018-01-01	66.3954625109323
2018-04-01	66.7155987614830