Quarter	Percent, Seasonally Adjusted
1999-01-01	48.7957601184025
1999-04-01	48.7410044931555
1999-07-01	49.0171542314229
1999-10-01	48.8314804712759
2000-01-01	48.8203141985978
2000-04-01	48.7500318401813
2000-07-01	47.8663455226848
2000-10-01	48.4578867364893
2001-01-01	48.2771329341773
2001-04-01	48.9749161733481
2001-07-01	48.0877035285042
2001-10-01	48.2559685687400
2002-01-01	47.8697228459846
2002-04-01	48.2452138545291
2002-07-01	49.1842688749466
2002-10-01	50.0999045947635
2003-01-01	49.8763391883675
2003-04-01	50.0246615105446
2003-07-01	50.7323479990087
2003-10-01	49.2363396194907
2004-01-01	48.1338453011682
2004-04-01	47.3324453484022
2004-07-01	46.6623066976381
2004-10-01	47.9990441725251
2005-01-01	47.4408494401677
2005-04-01	47.5679237659646
2005-07-01	47.0057739009185
2005-10-01	46.3989474855868
2006-01-01	46.5849531912901
2006-04-01	45.8038683951800
2006-07-01	47.0934113665379
2006-10-01	47.4543809259339
2007-01-01	47.1471427145110
2007-04-01	46.1959347805335
2007-07-01	46.3732189423735
2007-10-01	46.9850752911997
2008-01-01	47.0320001950326
2008-04-01	46.9335003670308
2008-07-01	45.9402036487079
2008-10-01	45.9295560772575
2009-01-01	46.6691126876386
2009-04-01	46.7030431252231
2009-07-01	45.9266028007077
2009-10-01	46.2361771450571
2010-01-01	46.3523413834082
2010-04-01	46.4790435486682
2010-07-01	47.4801854630964
2010-10-01	46.6651690548616
2011-01-01	47.7025372550428
2011-04-01	48.0176041028294
2011-07-01	47.8558317963219
2011-10-01	47.0913020166740
2012-01-01	46.7320776834646
2012-04-01	48.5009704377530
2012-07-01	48.0707500300239
2012-10-01	47.7688197724870
2013-01-01	48.6113974890590
2013-04-01	48.5345649131285
2013-07-01	48.0852104753829
2013-10-01	48.3644571348951
2014-01-01	47.6854495309292
2014-04-01	47.0191585684756
2014-07-01	48.0431638411348
2014-10-01	48.3497278327335
2015-01-01	48.7242835441704
2015-04-01	47.6622170625061
2015-07-01	47.8374795279461
2015-10-01	48.2185933977763
2016-01-01	48.3671565052168
2016-04-01	47.9735756735504
2016-07-01	48.4916725249267
2016-10-01	47.1301479584894
2017-01-01	46.3655159765789
2017-04-01	46.9827376503885
2017-07-01	45.9093069055098
2017-10-01	45.5095871291384
2018-01-01	45.7728902875736
2018-04-01	46.2252960502210