Quarter	Percent, Seasonally Adjusted
2000-01-01	49.5072781561873
2000-04-01	50.7045523424940
2000-07-01	51.8990150489684
2000-10-01	52.5533465963650
2001-01-01	51.9032002710983
2001-04-01	51.3081789108786
2001-07-01	51.3089480031176
2001-10-01	52.8583967098870
2002-01-01	53.8005020396836
2002-04-01	56.0733315085639
2002-07-01	56.6123384385683
2002-10-01	56.6371691305207
2003-01-01	58.3460500496036
2003-04-01	58.1266893509456
2003-07-01	58.2155075395964
2003-10-01	58.2460774291546
2004-01-01	59.0746203689058
2004-04-01	58.6949766266562
2004-07-01	59.1343868318746
2004-10-01	59.6666393405132
2005-01-01	59.3594127939520
2005-04-01	59.6724555308715
2005-07-01	59.7900835550611
2005-10-01	59.3041642218647
2006-01-01	58.7489750230697
2006-04-01	60.2974462381041
2006-07-01	60.9007041605366
2006-10-01	61.6808663526898
2007-01-01	63.2607059881710
2007-04-01	63.9485571197786
2007-07-01	64.4494089847251
2007-10-01	64.3583457465575
2008-01-01	64.8863961162380
2008-04-01	65.3956357066477
2008-07-01	66.3122033739428
2008-10-01	66.9259453920050
2009-01-01	67.3795808858747
2009-04-01	67.4178000902220
2009-07-01	67.9470925378477
2009-10-01	67.6619837684438
2010-01-01	66.8906584332443
2010-04-01	67.4560951986220
2010-07-01	67.7102949719087
2010-10-01	67.3175442426224
2011-01-01	66.4282531351730
2011-04-01	67.0751027764567
2011-07-01	67.8664850086984
2011-10-01	68.7310711492426
2012-01-01	69.7609381050020
2012-04-01	70.5949348991893
2012-07-01	70.8731978635250
2012-10-01	71.3589456326934
2013-01-01	72.5031610893298
2013-04-01	73.6204754792284
2013-07-01	75.1831594701397
2013-10-01	75.6113309393912
2014-01-01	74.9124635572102
2014-04-01	75.2386154858412
2014-07-01	75.6245511714584
2014-10-01	76.1368149572587
2015-01-01	77.3295661983666
2015-04-01	77.6452117901138
2015-07-01	77.3976950522068
2015-10-01	78.1623492747627
2016-01-01	78.4625255362070
2016-04-01	78.0091898629542
2016-07-01	77.8620162495339
2016-10-01	78.6651028144246
2017-01-01	78.6767852948352
2017-04-01	79.0242949770833
2017-07-01	79.0101970984743
2017-10-01	79.1717320926158
2018-01-01	79.0470227021255
2018-04-01	79.5751403718051