Quarter	Percent, Seasonally Adjusted
1999-01-01	47.5934706918428
1999-04-01	47.5082787847120
1999-07-01	47.7872991096752
1999-10-01	47.7887833375941
2000-01-01	48.1378726629797
2000-04-01	48.9597544615570
2000-07-01	48.7614742512613
2000-10-01	48.2377030078004
2001-01-01	48.2130546888189
2001-04-01	47.8919188914364
2001-07-01	48.1224343013520
2001-10-01	47.5754548905342
2002-01-01	47.7570006672235
2002-04-01	47.7979231726785
2002-07-01	48.0330626482181
2002-10-01	47.8327266497176
2003-01-01	47.2850096606707
2003-04-01	47.5519546805864
2003-07-01	47.4174194915643
2003-10-01	48.1002171022380
2004-01-01	47.9692163972054
2004-04-01	48.3727167880704
2004-07-01	47.9482402306795
2004-10-01	48.2549993955886
2005-01-01	48.8469630029080
2005-04-01	48.7538576824054
2005-07-01	48.7179929955176
2005-10-01	48.8826692110243
2006-01-01	48.3387794588598
2006-04-01	48.4054883160002
2006-07-01	48.7691135970506
2006-10-01	49.4196824842318
2007-01-01	49.5136004589908
2007-04-01	49.4468998683416
2007-07-01	49.4224707807338
2007-10-01	49.9995937748822
2008-01-01	50.2131764516206
2008-04-01	49.8048122060637
2008-07-01	50.0310174290039
2008-10-01	49.6869424389132
2009-01-01	49.4601413026358
2009-04-01	49.1236501865035
2009-07-01	49.1038500341377
2009-10-01	49.2901080212525
2010-01-01	49.6657485849168
2010-04-01	49.1915315678786
2010-07-01	49.5344589858115
2010-10-01	49.9498074507609
2011-01-01	49.0830704998126
2011-04-01	49.8457956301613
2011-07-01	49.1486784310164
2011-10-01	49.5240507617804
2012-01-01	49.2556295254562
2012-04-01	49.2691243782687
2012-07-01	49.3610909376263
2012-10-01	49.0480791819462
2013-01-01	48.7993060221412
2013-04-01	49.2426638861216
2013-07-01	49.3684993593396
2013-10-01	48.7762310237449
2014-01-01	48.7711061023167
2014-04-01	48.9527409770478
2014-07-01	49.0146764729553
2014-10-01	49.0427582148419
2015-01-01	49.0759093307377
2015-04-01	48.4712285821233
2015-07-01	48.9210329073875
2015-10-01	48.6839199468337
2016-01-01	48.5616662421663
2016-04-01	48.6635001996089
2016-07-01	48.8320291107772
2016-10-01	49.7589521247266
2017-01-01	49.5007407998053
2017-04-01	49.8009863283831
2017-07-01	50.1485583028097
2017-10-01	50.6327797974865
2018-01-01	50.7497684328821
2018-04-01	50.4421101040417