Quarter	Percent, Seasonally Adjusted
2000-01-01	56.9993712753820
2000-04-01	56.9360257991220
2000-07-01	56.5134358669935
2000-10-01	56.0787484385431
2001-01-01	57.5067184700558
2001-04-01	57.3433232298728
2001-07-01	55.9573613457431
2001-10-01	57.1264650870372
2002-01-01	58.8379790624792
2002-04-01	57.6816488193550
2002-07-01	57.4726772340030
2002-10-01	55.8057049021402
2003-01-01	57.0435329650543
2003-04-01	59.1157895576140
2003-07-01	59.6150568436100
2003-10-01	60.0115597055185
2004-01-01	58.8937056780067
2004-04-01	58.7615904803039
2004-07-01	57.6298818421724
2004-10-01	58.6530309262471
2005-01-01	57.7298272357260
2005-04-01	58.4728860591017
2005-07-01	59.4894544457440
2005-10-01	60.1991991408513
2006-01-01	62.0717743762869
2006-04-01	63.6767942123665
2006-07-01	63.8528679455930
2006-10-01	64.1653438040999
2007-01-01	64.3219362101464
2007-04-01	64.8495667125373
2007-07-01	64.7588823949580
2007-10-01	64.6805840089246
2008-01-01	66.3975306860207
2008-04-01	65.3967704666514
2008-07-01	63.5932377727592
2008-10-01	63.7432559829964
2009-01-01	59.6334487640353
2009-04-01	56.6030826793534
2009-07-01	56.2715267366871
2009-10-01	53.9059700457411
2010-01-01	51.7726141361254
2010-04-01	51.9830046839083
2010-07-01	54.6994793604199
2010-10-01	57.7015826523198
2011-01-01	58.7081909113705
2011-04-01	58.3321339221947
2011-07-01	59.7676598917161
2011-10-01	59.7057102124712
2012-01-01	60.1273750879589
2012-04-01	60.1391122017506
2012-07-01	61.7504523826140
2012-10-01	61.5327132719654
2013-01-01	62.2827529458989
2013-04-01	63.3561602475569
2013-07-01	61.7144315560106
2013-10-01	61.2763174684288
2014-01-01	62.9418905048874
2014-04-01	64.0662801108743
2014-07-01	62.5595235004024
2014-10-01	64.3222065689606
2015-01-01	64.1442783294211
2015-04-01	65.2541062940107
2015-07-01	66.4401066310430
2015-10-01	64.6726840908568
2016-01-01	64.6001108004111
2016-04-01	65.8465975593553
2016-07-01	65.5756622117179
2016-10-01	65.2085011174897
2017-01-01	66.7704956438170
2017-04-01	66.3648176279650
2017-07-01	66.7349702681810
2017-10-01	68.0666700117902
2018-01-01	66.5438953036447
2018-04-01	67.6820610461606