Quarter	Percent, Seasonally Adjusted
1999-07-01	51.8776297685048
1999-10-01	51.4976990320255
2000-01-01	51.4594756069705
2000-04-01	51.4225073243500
2000-07-01	50.9457378090670
2000-10-01	51.0929922850445
2001-01-01	51.1280703549194
2001-04-01	50.5869031022301
2001-07-01	50.5732801350051
2001-10-01	50.2871516843147
2002-01-01	50.0358922385322
2002-04-01	49.9479879769027
2002-07-01	50.1415713831642
2002-10-01	50.4308854992335
2003-01-01	51.0025590200132
2003-04-01	51.1226899197206
2003-07-01	50.8914346326605
2003-10-01	50.7286333065891
2004-01-01	49.7587775697424
2004-04-01	49.9146842148769
2004-07-01	49.9144400941520
2004-10-01	49.8527280810079
2005-01-01	49.8695522760212
2005-04-01	49.8055992339336
2005-07-01	49.7027235450753
2005-10-01	49.5557786461309
2006-01-01	49.4545677001705
2006-04-01	49.5290038251270
2006-07-01	49.5740570280189
2006-10-01	49.4348162746954
2007-01-01	49.5017867135277
2007-04-01	49.5140256457770
2007-07-01	49.6368581389306
2007-10-01	49.5212124043192
2008-01-01	49.6053813528360
2008-04-01	49.6775501493074
2008-07-01	49.9540405488785
2008-10-01	49.9752583206363
2009-01-01	50.5800481903345
2009-04-01	50.7967906006885
2009-07-01	50.6228595513070
2009-10-01	50.7967591208959
2010-01-01	50.4644945061422
2010-04-01	50.4230799863764
2010-07-01	50.2967821530923
2010-10-01	50.5087708666301
2011-01-01	50.3532912287978
2011-04-01	50.0011722958525
2011-07-01	50.3047654952685
2011-10-01	50.0912788459903
2012-01-01	49.9109979951223
2012-04-01	49.6850154401004
2012-07-01	49.9060925050661
2012-10-01	50.0171193772702
2013-01-01	50.1900594977558
2013-04-01	49.7735497653858
2013-07-01	49.4728483843849
2013-10-01	49.1843159209195
2014-01-01	48.7120131621490
2014-04-01	48.5362752327613
2014-07-01	48.4177200323905
2014-10-01	48.3657144579755
2015-01-01	48.2193385747245
2015-04-01	48.2454808012627
2015-07-01	48.0592120813883
2015-10-01	47.9061829550499
2016-01-01	47.9174189702609
2016-04-01	48.0085570384520
2016-07-01	47.7784008213567
2016-10-01	47.6449226060105
2017-01-01	47.3940907848397
2017-04-01	47.4132374914479
2017-07-01	47.3283768747592
2017-10-01	47.2411188119104
2018-01-01	47.1965426917600
2018-04-01	47.1230305109606
2018-07-01	47.0537107913736