Quarter	Percent, Seasonally Adjusted
1998-04-01	90.2000000000000
1999-04-01	89.7000000000000
2000-04-01	89.4000000000000
2001-04-01	89.2000000000000
2002-04-01	88.7000000000000
2003-04-01	88.5000000000000
2004-04-01	88.0000000000000
2005-04-01	87.4000000000000
2006-04-01	87.8000000000000
2007-04-01	88.2000000000000
2008-04-01	88.0000000000000
2009-04-01	87.8000000000000
2010-01-01	87.0652506104276
2010-04-01	87.2151074561907
2010-07-01	87.2896618894534
2010-10-01	87.3166027475848
2011-01-01	87.6890756946359
2011-04-01	87.7334436147200
2011-07-01	87.7404857386319
2011-10-01	87.8258115813332
2012-01-01	87.6239286372772
2012-04-01	87.6913359765848
2012-07-01	87.9193441876874
2012-10-01	87.8241233397724
2013-01-01	87.7944846426912
2013-04-01	87.6210956871116
2013-07-01	87.5174119519932
2013-10-01	87.5850139186692
2014-01-01	87.4878773704079
2014-04-01	87.6288288608131
2014-07-01	87.6799820218554
2014-10-01	87.6325398224396
2015-01-01	87.7993363340710
2015-04-01	87.7855479104524
2015-07-01	87.7789141524394
2015-10-01	87.9984139288601
2016-01-01	88.0594155335437
2016-04-01	88.0618821017854
2016-07-01	88.2118606008877
2016-10-01	88.3039749163696
2017-01-01	88.3450919838264
2017-04-01	88.4673942932488
2017-07-01	88.5847131639227
2017-10-01	88.5033845063864
2018-01-01	88.4826534444337
2018-04-01	88.5153058900480