Quarter	Percent, Seasonally Adjusted
1999-04-01	82.9794684049584
1999-07-01	83.1782238562722
1999-10-01	83.1161683114391
2000-01-01	82.8803724396938
2000-04-01	83.0988871074459
2000-07-01	82.8788370255179
2000-10-01	82.6463350659923
2001-01-01	82.8603789656969
2001-04-01	82.5170841998312
2001-07-01	82.6524350803506
2001-10-01	82.5353221107782
2002-01-01	82.3549780629505
2002-04-01	82.2966065873773
2002-07-01	82.2917627865807
2002-10-01	82.5896419769249
2003-01-01	82.4439769766256
2003-04-01	82.4375081683548
2003-07-01	82.5398016240812
2003-10-01	82.3015627898584
2004-01-01	82.3699821491490
2004-04-01	82.0598630858069
2004-07-01	81.9878836467414
2004-10-01	82.1411910757753
2005-01-01	82.2845208471368
2005-04-01	81.8632928945028
2005-07-01	81.9464039883761
2005-10-01	82.1509246756756
2006-01-01	82.1168057152822
2006-04-01	82.2655777326816
2006-07-01	82.6148291356385
2006-10-01	82.2390668348636
2007-01-01	82.2099036266411
2007-04-01	82.2006410530863
2007-07-01	82.1586220167008
2007-10-01	82.2411024702263
2008-01-01	82.3597405388916
2008-04-01	82.4481729761128
2008-07-01	82.3484288582904
2008-10-01	82.5929158479408
2009-01-01	82.5457896121552
2009-04-01	82.0687622269039
2009-07-01	81.7918991749805
2009-10-01	81.4220329114569
2010-01-01	81.2123447636255
2010-04-01	81.5854725322872
2010-07-01	81.7872494694465
2010-10-01	81.6124727640526
2011-01-01	81.3982017678621
2011-04-01	81.5456896670654
2011-07-01	81.4600644802928
2011-10-01	81.6355342194600
2012-01-01	81.7168688945511
2012-04-01	82.0670958406054
2012-07-01	82.0756130587290
2012-10-01	82.0632082576013
2013-01-01	81.8017572422398
2013-04-01	82.0426233845637
2013-07-01	82.3658740766250
2013-10-01	82.1950099668407
2014-01-01	82.2297533340734
2014-04-01	82.2885631989698
2014-07-01	82.2165397478959
2014-10-01	81.9150792914769
2015-01-01	82.1147511643637
2015-04-01	81.9573154272268
2015-07-01	82.0811484225779
2015-10-01	82.5327949135501
2016-01-01	82.6046849110071
2016-04-01	82.5783883463803
2016-07-01	82.3187835961006
2016-10-01	82.2994523764798
2017-01-01	82.3723341731384
2017-04-01	82.5699255174987
2017-07-01	82.0411370098011
2017-10-01	82.3672223343369
2018-01-01	82.6623217898089
2018-04-01	82.5880193911095