Quarter	Percent, Seasonally Adjusted
1999-01-01	34.8990678820901
1999-04-01	34.9511485850752
1999-07-01	34.7789511290803
1999-10-01	34.6208143528273
2000-01-01	34.4725248461219
2000-04-01	34.3241943021007
2000-07-01	34.0572038198891
2000-10-01	33.8321749009594
2001-01-01	34.8833580543900
2001-04-01	34.5823710811548
2001-07-01	34.4727668784149
2001-10-01	34.2606544372822
2002-01-01	34.0486154812560
2002-04-01	33.9058097059733
2002-07-01	33.7099039941060
2002-10-01	33.5901337156416
2003-01-01	33.3370056045198
2003-04-01	33.1669242497682
2003-07-01	32.9106395268542
2003-10-01	32.7334236201457
2004-01-01	32.8517139312037
2004-04-01	32.7869068278711
2004-07-01	32.6193656535782
2004-10-01	32.4509373082171
2005-01-01	32.0868831186377
2005-04-01	31.8881220709958
2005-07-01	31.8885620055746
2005-10-01	31.7183915388985
2006-01-01	31.6668845230506
2006-04-01	31.6770553385081
2006-07-01	31.5658848323084
2006-10-01	31.6261250666135
2007-01-01	31.6279023688891
2007-04-01	31.4269958630263
2007-07-01	31.4063242123672
2007-10-01	31.4187040888581
2008-01-01	31.2325838152795
2008-04-01	31.2084345057726
2008-07-01	31.3096038393104
2008-10-01	31.5031797239081
2009-01-01	31.5272396564503
2009-04-01	32.0024386726716
2009-07-01	32.6354205458308
2009-10-01	32.5473531155699
2010-01-01	32.5782375947465
2010-04-01	32.4122596651530
2010-07-01	32.7420860591331
2010-10-01	32.9149927857730
2011-01-01	33.0319793523490
2011-04-01	33.2259390603893
2011-07-01	33.2139478534488
2011-10-01	33.2480776340436
2012-01-01	33.5637677500630
2012-04-01	33.4760870586233
2012-07-01	33.6817367772481
2012-10-01	33.9745132995835
2013-01-01	33.9679591566822
2013-04-01	34.4456292904590
2013-07-01	34.4301352010721
2013-10-01	34.6620350433366
2014-01-01	35.0628799343363
2014-04-01	34.9206537387219
2014-07-01	35.0188144110740
2014-10-01	34.8412533222958
2015-01-01	35.0132176098399
2015-04-01	35.0360639687821
2015-07-01	35.2381646156630
2015-10-01	35.4139068771110
2016-01-01	35.4087018892239
2016-04-01	35.6644634163068
2016-07-01	35.8653188640644
2016-10-01	35.9598712009154
2017-01-01	36.0059452214770
2017-04-01	36.1476577924303
2017-07-01	36.0864780288443
2017-10-01	36.1866283651364
2018-01-01	36.2933033641664
2018-04-01	36.2199068649556
2018-07-01	36.2663873122008