Quarter	Percent, Seasonally Adjusted
1999-07-01	60.0951329955181
1999-10-01	60.9026304002803
2000-01-01	61.0833161456016
2000-04-01	61.3497545041064
2000-07-01	61.8295535801258
2000-10-01	61.7927137070255
2001-01-01	61.2755200244174
2001-04-01	62.3338209172091
2001-07-01	62.5108883599666
2001-10-01	62.7027966561548
2002-01-01	63.1578881278641
2002-04-01	63.4666270568470
2002-07-01	63.5593047015140
2002-10-01	63.4415291698291
2003-01-01	63.0973094501666
2003-04-01	62.8994829475380
2003-07-01	62.9833623729753
2003-10-01	63.1611616980798
2004-01-01	63.8797232189670
2004-04-01	63.6910943933970
2004-07-01	63.6369833519637
2004-10-01	63.8623559102555
2005-01-01	63.7266699238600
2005-04-01	63.7442213961735
2005-07-01	63.7068636047620
2005-10-01	63.8152391653692
2006-01-01	63.9889604434530
2006-04-01	64.0093880265527
2006-07-01	63.9327983945357
2006-10-01	63.9656863627535
2007-01-01	64.1391141643734
2007-04-01	64.1310564255391
2007-07-01	64.1290325833461
2007-10-01	64.1852409921536
2008-01-01	64.1568875177628
2008-04-01	64.1252437912916
2008-07-01	63.9056350734388
2008-10-01	63.6390601952232
2009-01-01	63.1133068204616
2009-04-01	62.9527346707456
2009-07-01	62.9746437235862
2009-10-01	63.0312482661425
2010-01-01	63.1200845119200
2010-04-01	63.4622208539960
2010-07-01	63.4566500048827
2010-10-01	63.5161419595008
2011-01-01	63.6605706033743
2011-04-01	63.9737185608160
2011-07-01	63.8583333608327
2011-10-01	64.1710930332584
2012-01-01	64.2618291412208
2012-04-01	64.4285464353900
2012-07-01	64.3918438611399
2012-10-01	64.2939425991879
2013-01-01	64.1116238861726
2013-04-01	64.5330532813384
2013-07-01	64.7749033803068
2013-10-01	65.0916831989129
2014-01-01	65.4912952652816
2014-04-01	65.4185318229658
2014-07-01	65.6951380071863
2014-10-01	65.6621169769170
2015-01-01	65.8683741218272
2015-04-01	65.7666693951248
2015-07-01	65.9458147654354
2015-10-01	66.0601676991144
2016-01-01	65.9374309681222
2016-04-01	65.8980336114430
2016-07-01	66.1877999513733
2016-10-01	66.2804168084206
2017-01-01	66.5052006579091
2017-04-01	66.6320151842183
2017-07-01	66.7089653003065
2017-10-01	66.6708363888553
2018-01-01	66.7464302030380
2018-04-01	66.6089601529588
2018-07-01	66.4696235783924