Quarter	Percent, Seasonally Adjusted
1999-04-01	58.2132479509093
1999-07-01	58.6284683382413
1999-10-01	59.3504790656416
2000-01-01	59.0611647382790
2000-04-01	58.8794547336350
2000-07-01	58.6829071644329
2000-10-01	58.0735568786982
2001-01-01	58.6519153430892
2001-04-01	58.9554115557647
2001-07-01	59.3083723188549
2001-10-01	58.8572883682424
2002-01-01	58.3360416886398
2002-04-01	58.2312168007756
2002-07-01	57.1678358347440
2002-10-01	57.4399475972578
2003-01-01	57.3514938206362
2003-04-01	56.8306030277695
2003-07-01	56.9901217552508
2003-10-01	57.2177953258838
2004-01-01	57.3996134522364
2004-04-01	57.7067593782638
2004-07-01	56.7285914773184
2004-10-01	56.3902567999685
2005-01-01	56.8293687512546
2005-04-01	56.0446446627832
2005-07-01	55.4990383293063
2005-10-01	55.0122864084430
2006-01-01	54.5377383710656
2006-04-01	54.4628254267276
2006-07-01	55.3376385614825
2006-10-01	54.5116080770766
2007-01-01	54.5101019083208
2007-04-01	53.7340922801482
2007-07-01	53.3652069667502
2007-10-01	54.3585321200296
2008-01-01	54.1850433294472
2008-04-01	53.6382354802956
2008-07-01	53.2301058028902
2008-10-01	52.3371670115427
2009-01-01	49.8714808184754
2009-04-01	48.2759372916310
2009-07-01	46.9673001691025
2009-10-01	46.3970756063077
2010-01-01	46.1198490511818
2010-04-01	47.5264674093604
2010-07-01	48.8699800426078
2010-10-01	47.7130663802396
2011-01-01	46.9787228311584
2011-04-01	46.9183712106020
2011-07-01	45.7675433390789
2011-10-01	45.4946122934126
2012-01-01	45.5933708400665
2012-04-01	46.5516270281561
2012-07-01	46.7665166627049
2012-10-01	46.4916570357657
2013-01-01	46.3482219163618
2013-04-01	45.6519978405569
2013-07-01	46.6588596086160
2013-10-01	46.7678716930242
2014-01-01	47.1862113800477
2014-04-01	48.4382400280348
2014-07-01	48.4409453344022
2014-10-01	48.8193568737193
2015-01-01	49.4527700285211
2015-04-01	49.2819198497889
2015-07-01	50.9010871137424
2015-10-01	51.4482285918911
2016-01-01	51.3749353104396
2016-04-01	50.5016158331341
2016-07-01	50.0121974310438
2016-10-01	50.2973315106461
2017-01-01	50.5526819692872
2017-04-01	50.8171408302047
2017-07-01	49.8943622095717
2017-10-01	50.6181099905809
2018-01-01	51.4713021743455
2018-04-01	51.5523546391651