Quarter	Percent, Seasonally Adjusted
1999-01-01	43.4212127361328
1999-04-01	43.4610278890238
1999-07-01	43.8100103467536
1999-10-01	43.3995158677338
2000-01-01	43.8093458945016
2000-04-01	44.9996636610926
2000-07-01	44.9148771476351
2000-10-01	44.3139036146737
2001-01-01	44.3418474142443
2001-04-01	44.0113791190088
2001-07-01	44.0808955723479
2001-10-01	43.9263240425188
2002-01-01	44.0774870274173
2002-04-01	44.3638948313456
2002-07-01	44.7790810325453
2002-10-01	44.8591110748201
2003-01-01	44.8287694217305
2003-04-01	44.6596557747028
2003-07-01	44.6765703440348
2003-10-01	45.7062345220987
2004-01-01	45.2670791513775
2004-04-01	46.0477448920793
2004-07-01	45.5261735774216
2004-10-01	46.1984171159281
2005-01-01	46.8033219121860
2005-04-01	47.1763124203195
2005-07-01	46.5103869761175
2005-10-01	46.9091036014772
2006-01-01	46.7487104175161
2006-04-01	47.0433653189196
2006-07-01	47.3806953416796
2006-10-01	47.8917954398564
2007-01-01	47.9204563230690
2007-04-01	48.2927301132228
2007-07-01	48.5653997551216
2007-10-01	49.6647439165399
2008-01-01	49.7800566143406
2008-04-01	49.1529731884641
2008-07-01	49.8326343196385
2008-10-01	49.1813774271832
2009-01-01	49.4067441190255
2009-04-01	49.4369551677684
2009-07-01	49.1416442998050
2009-10-01	49.4477343677718
2010-01-01	50.2063282217587
2010-04-01	49.0652131333919
2010-07-01	49.6537869740172
2010-10-01	50.7440921263630
2011-01-01	49.5401780371171
2011-04-01	50.4853100607170
2011-07-01	49.9934871700632
2011-10-01	49.9501437791556
2012-01-01	49.5440620223951
2012-04-01	49.6143284544960
2012-07-01	50.2421969109067
2012-10-01	50.5355466662241
2013-01-01	49.8541327714054
2013-04-01	49.9138228867192
2013-07-01	51.0378110164921
2013-10-01	50.0638165543402
2014-01-01	50.2097713976590
2014-04-01	51.0379751602735
2014-07-01	51.1139900082909
2014-10-01	50.7955929605361
2015-01-01	51.0209175103817
2015-04-01	50.4469814159500
2015-07-01	50.7363875546718
2015-10-01	50.9027264479738
2016-01-01	50.3759367260589
2016-04-01	49.9179326374903
2016-07-01	50.2022907224135
2016-10-01	51.8184532305184
2017-01-01	50.2151323347438
2017-04-01	50.8962606267140
2017-07-01	51.2505962796284
2017-10-01	51.7111276029104
2018-01-01	52.0918966356160
2018-04-01	51.6901704338001