Quarter	Percent, Seasonally Adjusted
1999-01-01	47.1824259804954
1999-04-01	47.0793371695655
1999-07-01	47.2528825977700
1999-10-01	47.1357199401506
2000-01-01	47.1392974116573
2000-04-01	46.8613366290703
2000-07-01	47.0208210175807
2000-10-01	47.3072096940169
2001-01-01	47.2894947285988
2001-04-01	47.8099783947796
2001-07-01	47.5417686500076
2001-10-01	48.1826427392968
2002-01-01	48.3560733271732
2002-04-01	48.5286842829420
2002-07-01	48.5806163345173
2002-10-01	48.7999998017103
2003-01-01	48.8452490920274
2003-04-01	49.1088849929828
2003-07-01	49.0800475893888
2003-10-01	48.7918275678910
2004-01-01	47.3908662050208
2004-04-01	47.2835832370763
2004-07-01	47.3843555949044
2004-10-01	47.5733356577982
2005-01-01	48.1152221429860
2005-04-01	48.0887517259798
2005-07-01	48.4716083164177
2005-10-01	48.5203303234940
2006-01-01	48.7366113810910
2006-04-01	48.9678801842261
2006-07-01	49.2773885179328
2006-10-01	49.3203370908799
2007-01-01	49.7150161033543
2007-04-01	49.6842145053226
2007-07-01	50.3089417261173
2007-10-01	50.4846800442967
2008-01-01	50.8246540407680
2008-04-01	51.0360120887445
2008-07-01	51.0195466928558
2008-10-01	51.2416658867942
2009-01-01	51.2906719251811
2009-04-01	51.3049455854863
2009-07-01	51.1920764984804
2009-10-01	51.4052338261237
2010-01-01	51.5858350208595
2010-04-01	51.4630822563346
2010-07-01	51.6982598578642
2010-10-01	51.8465590378595
2011-01-01	51.8738518724950
2011-04-01	51.9941378058179
2011-07-01	52.2749749895971
2011-10-01	51.9089576389570
2012-01-01	52.2338270824038
2012-04-01	52.3792041998624
2012-07-01	52.3304787819705
2012-10-01	52.5453831609061
2013-01-01	52.2592758799112
2013-04-01	52.4635402217706
2013-07-01	52.5323170947970
2013-10-01	52.2096809715713
2014-01-01	52.3601082396291
2014-04-01	52.5469234435088
2014-07-01	52.0770954828487
2014-10-01	52.3411869213375
2015-01-01	52.1691819695893
2015-04-01	52.2031929793018
2015-07-01	52.6183106583121
2015-10-01	52.6909243366504
2016-01-01	52.7558693949071
2016-04-01	52.6760879961705
2016-07-01	52.8385683883078
2016-10-01	52.9684170910829
2017-01-01	53.0269792738961
2017-04-01	53.1439072799512
2017-07-01	53.0326920291229
2017-10-01	53.1927956884902
2018-01-01	53.2329229517298
2018-04-01	53.2117322471365