Quarter	Percent, Seasonally Adjusted
1998-01-01	47.9782920233200
1998-04-01	48.2095542414104
1998-07-01	48.2015826574227
1998-10-01	47.9108887534062
1999-01-01	47.8792513704713
1999-04-01	47.9362787057949
1999-07-01	47.9540102731594
1999-10-01	47.9119802168324
2000-01-01	48.0582279242362
2000-04-01	48.3376265182350
2000-07-01	48.5480348685332
2000-10-01	48.6140738676760
2001-01-01	48.2710119565463
2001-04-01	48.7504568225173
2001-07-01	48.8192760333852
2001-10-01	49.1377984635602
2002-01-01	49.2279751279856
2002-04-01	49.1194800877363
2002-07-01	49.0109116416969
2002-10-01	48.8993219667285
2003-01-01	48.9974133810010
2003-04-01	49.0171397403673
2003-07-01	49.3509678421574
2003-10-01	49.4603262956256
2004-01-01	49.3279503921830
2004-04-01	49.4047463510692
2004-07-01	49.5797742863753
2004-10-01	49.5381397692100
2005-01-01	49.7202192644563
2005-04-01	49.4432866760232
2005-07-01	49.1852692928557
2005-10-01	49.0206210094229
2006-01-01	49.1193186686537
2006-04-01	49.2798586720556
2006-07-01	49.5237580339656
2006-10-01	49.8579486982103
2007-01-01	49.9259715102014
2007-04-01	50.0715926973145
2007-07-01	50.3972343791484
2007-10-01	50.4939789326630
2008-01-01	50.6055071595624
2008-04-01	50.5657736382653
2008-07-01	50.7711462189596
2008-10-01	50.7661377551059
2009-01-01	50.7006731289169
2009-04-01	50.4565933442042
2009-07-01	50.3185101836986
2009-10-01	50.4063541717316
2010-01-01	50.7075376145413
2010-04-01	50.7722436927614
2010-07-01	50.6742702405768
2010-10-01	50.5803817160284
2011-01-01	50.6093084106314
2011-04-01	50.4771041135026
2011-07-01	50.4597295327990
2011-10-01	50.5623652798718
2012-01-01	50.4800280525305
2012-04-01	50.1043993078393
2012-07-01	49.7673648234162
2012-10-01	49.4806776232852
2013-01-01	49.3937460193250
2013-04-01	48.9035527855793
2013-07-01	49.0365915877828
2013-10-01	49.0052932369355
2014-01-01	49.1822586769686
2014-04-01	49.3647543673314
2014-07-01	49.1958835769743
2014-10-01	48.8118891631384
2015-01-01	48.7226103484720
2015-04-01	48.7169165616539
2015-07-01	48.6699737656869
2015-10-01	48.8870845185798
2016-01-01	48.4572721153399
2016-04-01	48.2162174574000
2016-07-01	48.1157304743257
2016-10-01	47.7571664185796
2017-01-01	47.7875193902186
2017-04-01	47.9300124349138
2017-07-01	47.4349518872479
2017-10-01	47.6905526313574
2018-01-01	47.4804072585287
2018-04-01	47.3056128295091