Quarter	Percent, Seasonally Adjusted
1999-01-01	46.8240229858651
1999-04-01	46.6309978111422
1999-07-01	46.3452442961396
1999-10-01	46.1525035148046
2000-01-01	46.2803194370252
2000-04-01	45.7736452768675
2000-07-01	45.6395366763042
2000-10-01	46.2032098562466
2001-01-01	46.3336072632092
2001-04-01	46.3973221967695
2001-07-01	46.3126103584320
2001-10-01	46.1551113085419
2002-01-01	45.5353601948907
2002-04-01	45.8429168389398
2002-07-01	46.1571192204901
2002-10-01	46.2430706243391
2003-01-01	46.5028473472758
2003-04-01	46.9240585956377
2003-07-01	46.8815068074697
2003-10-01	46.7131661881618
2004-01-01	45.5902815827941
2004-04-01	45.6077926346952
2004-07-01	45.9270280203668
2004-10-01	45.9467942395882
2005-01-01	45.7522472893479
2005-04-01	45.8046248838578
2005-07-01	45.7285995563844
2005-10-01	46.1206459282381
2006-01-01	45.8549804853850
2006-04-01	46.6378805045307
2006-07-01	47.1720414773879
2006-10-01	47.5444351507000
2007-01-01	47.8057120428110
2007-04-01	47.7899464808957
2007-07-01	47.4809968492179
2007-10-01	48.3425803167648
2008-01-01	48.5518959294633
2008-04-01	48.9679514130153
2008-07-01	49.8941162100489
2008-10-01	49.6085124960926
2009-01-01	48.1160185963415
2009-04-01	47.7422074313532
2009-07-01	47.5149945492721
2009-10-01	47.0599257028274
2010-01-01	46.5698679464879
2010-04-01	46.9506693597269
2010-07-01	47.4488487386422
2010-10-01	47.5645815621965
2011-01-01	46.9797413969209
2011-04-01	47.3726035982602
2011-07-01	47.3853405021383
2011-10-01	46.9957041051500
2012-01-01	47.2580072949154
2012-04-01	47.5975622157537
2012-07-01	47.3338068949923
2012-10-01	46.7582646360268
2013-01-01	47.3172872153182
2013-04-01	47.4080976647635
2013-07-01	47.6339575054411
2013-10-01	47.9361526362413
2014-01-01	47.9565897230448
2014-04-01	48.1317673694065
2014-07-01	48.1723853329334
2014-10-01	48.5426070251677
2015-01-01	48.9699293206337
2015-04-01	49.3378726324988
2015-07-01	49.6275601890448
2015-10-01	50.1732065891188
2016-01-01	50.8111534731766
2016-04-01	51.3101878596055
2016-07-01	51.5790363433057
2016-10-01	51.9686510606105
2017-01-01	52.6498049946011
2017-04-01	52.9719734685561
2017-07-01	53.3305154253889
2017-10-01	53.1017843462334
2018-01-01	53.3348030687438
2018-04-01	53.1978743949135