Quarter	Percent, Seasonally Adjusted
1999-01-01	28.9608717650162
1999-04-01	30.2378708481898
1999-07-01	31.7609942314415
1999-10-01	32.0506120334686
2000-01-01	33.5145239104322
2000-04-01	34.2232946749188
2000-07-01	34.7015225572873
2000-10-01	35.5007405840986
2001-01-01	34.8473970417364
2001-04-01	35.4031238076788
2001-07-01	35.7279058529298
2001-10-01	35.7610680624932
2002-01-01	36.0285963132128
2002-04-01	36.1383895550115
2002-07-01	36.9197185446673
2002-10-01	38.4260955981473
2003-01-01	38.1778752302593
2003-04-01	39.4097290547518
2003-07-01	39.0633082175826
2003-10-01	39.0479842865464
2004-01-01	39.5169408454696
2004-04-01	38.9953614071230
2004-07-01	39.5101236726755
2004-10-01	40.7451907164130
2005-01-01	41.7047675770732
2005-04-01	42.1056633966193
2005-07-01	42.7243718976519
2005-10-01	42.8655726822592
2006-01-01	43.4371434314980
2006-04-01	43.1414438775754
2006-07-01	42.4293714882802
2006-10-01	42.8959055491909
2007-01-01	42.5506293778124
2007-04-01	42.1344574422273
2007-07-01	42.4187776132688
2007-10-01	41.2787098089988
2008-01-01	39.2687071109712
2008-04-01	39.6414703674228
2008-07-01	39.7629796188527
2008-10-01	40.4624543146581
2009-01-01	41.1278973729504
2009-04-01	41.4622156511326
2009-07-01	41.7048064070241
2009-10-01	41.5575728092191
2010-01-01	41.5362975265935
2010-04-01	42.2617693229886
2010-07-01	42.5177937727956
2010-10-01	42.4815280708888
2011-01-01	43.2724980510659
2011-04-01	43.0870359919354
2011-07-01	43.8015184153240
2011-10-01	44.5588002462996
2012-01-01	44.1317702664550
2012-04-01	45.4632737640427
2012-07-01	45.6629638146587
2012-10-01	46.2053327946602
2013-01-01	47.3266736000618
2013-04-01	48.7127785238506
2013-07-01	49.4551133825185
2013-10-01	50.4451563061558
2014-01-01	51.6191122948983
2014-04-01	52.5042031912222
2014-07-01	53.9808556566484
2014-10-01	54.5503905501664
2015-01-01	55.6628585694072
2015-04-01	57.4786525164912
2015-07-01	58.6055013942665
2015-10-01	59.5021053452686
2016-01-01	61.3927149566758
2016-04-01	61.9796520312606
2016-07-01	62.5030842829785
2016-10-01	63.5901414333355
2017-01-01	63.4963587802467
2017-04-01	64.1869047728059
2017-07-01	64.9943861891495
2017-10-01	65.4137265533996
2018-01-01	65.8634822153994
2018-04-01	65.6278380654770