Quarter	Percent, Seasonally Adjusted
1999-01-01	45.8485886701891
1999-04-01	46.1579657192857
1999-07-01	45.0700299324877
1999-10-01	44.1540077973398
2000-01-01	48.7825175460573
2000-04-01	49.2499904012335
2000-07-01	49.3877267233121
2000-10-01	50.3936945690943
2001-01-01	50.2280527055941
2001-04-01	50.1345850847449
2001-07-01	50.8348150683628
2001-10-01	49.8338099076735
2002-01-01	49.2148619430970
2002-04-01	49.9658491935950
2002-07-01	49.9653545982722
2002-10-01	49.7571038647393
2003-01-01	50.1014906539008
2003-04-01	49.8375293539860
2003-07-01	50.4548241245762
2003-10-01	50.5147348093162
2004-01-01	48.2810597765374
2004-04-01	47.2203910967511
2004-07-01	46.4376063158762
2004-10-01	46.1871185495566
2005-01-01	45.9174309695552
2005-04-01	45.8685625898018
2005-07-01	45.8503975713940
2005-10-01	45.9592024881452
2006-01-01	46.7892210817632
2006-04-01	45.9139550022192
2006-07-01	45.6388649744834
2006-10-01	45.3626724126077
2007-01-01	44.3785666829283
2007-04-01	43.6566083440420
2007-07-01	43.3424341224046
2007-10-01	44.5436596819311
2008-01-01	44.1891282115711
2008-04-01	44.4503146432787
2008-07-01	44.4334869478190
2008-10-01	42.2870903812967
2009-01-01	43.7177088830052
2009-04-01	43.0297055455227
2009-07-01	43.1325867318928
2009-10-01	45.3638217917654
2010-01-01	46.2991066873750
2010-04-01	46.0836445024918
2010-07-01	45.9835958924929
2010-10-01	45.6911571793801
2011-01-01	44.4191765678917
2011-04-01	45.1367249304454
2011-07-01	45.8016956877992
2011-10-01	45.4277295683058
2012-01-01	44.7988603110518
2012-04-01	45.4469575733445
2012-07-01	44.2094775175439
2012-10-01	44.0468572134489
2013-01-01	45.0987248108301
2013-04-01	44.4494780990017
2013-07-01	44.3025887766914
2013-10-01	44.9998875160485
2014-01-01	44.0735903036533
2014-04-01	44.1401923184493
2014-07-01	46.0272214684847
2014-10-01	44.2910364078613
2015-01-01	46.0018587412169
2015-04-01	45.8676384147156
2015-07-01	45.4416867141149
2015-10-01	46.1304105262208
2016-01-01	45.3416798268206
2016-04-01	46.2759690654423
2016-07-01	44.4810102843053
2016-10-01	45.5568455833198
2017-01-01	45.8318964824142
2017-04-01	45.5194375568317
2017-07-01	47.0250737282876
2017-10-01	46.8048322613943
2018-01-01	47.0350791919265
2018-04-01	47.0471248220695