Quarter	Percent, Seasonally Adjusted
1999-07-01	64.3201304743388
1999-10-01	64.4595775156532
2000-01-01	64.2984813562294
2000-04-01	64.2429909102434
2000-07-01	64.7006288818478
2000-10-01	64.6662473048460
2001-01-01	64.3395667113121
2001-04-01	65.0052063077314
2001-07-01	65.0557777597951
2001-10-01	65.2355049388478
2002-01-01	65.5731505099554
2002-04-01	65.7108569626984
2002-07-01	65.7235878305424
2002-10-01	65.5753794664411
2003-01-01	65.3878390663185
2003-04-01	65.3063843877680
2003-07-01	65.4592677218187
2003-10-01	65.7417858044190
2004-01-01	66.3792193564208
2004-04-01	66.1901332304172
2004-07-01	66.1854320032315
2004-10-01	66.4593022535340
2005-01-01	66.3567787765622
2005-04-01	66.3515460309882
2005-07-01	66.3173544936304
2005-10-01	66.3569645433438
2006-01-01	66.4543007298598
2006-04-01	66.4038618594580
2006-07-01	66.3457631494950
2006-10-01	66.3822347898440
2007-01-01	66.4234278846789
2007-04-01	66.4203254746414
2007-07-01	66.3922130940937
2007-10-01	66.4188828247365
2008-01-01	66.2756567343818
2008-04-01	66.2945170069002
2008-07-01	66.1002427673798
2008-10-01	65.9406961329208
2009-01-01	65.4917098080992
2009-04-01	65.5593463899163
2009-07-01	65.5062924122400
2009-10-01	65.4915440398162
2010-01-01	65.8524779841736
2010-04-01	65.8246903636961
2010-07-01	65.9353287103192
2010-10-01	65.9350927830543
2011-01-01	66.1314596457897
2011-04-01	66.2860877403813
2011-07-01	66.0818543380214
2011-10-01	66.3807166812574
2012-01-01	66.4810072928918
2012-04-01	66.6473202555648
2012-07-01	66.5465034334254
2012-10-01	66.4465401518720
2013-01-01	66.2494903830738
2013-04-01	66.6423534964156
2013-07-01	66.9441920695606
2013-10-01	67.2719594913311
2014-01-01	67.8413898763779
2014-04-01	67.9170416854167
2014-07-01	68.1340059357479
2014-10-01	68.2042914389757
2015-01-01	68.3529412175393
2015-04-01	68.3673767574804
2015-07-01	68.4686606728701
2015-10-01	68.5590384406041
2016-01-01	68.5671206903706
2016-04-01	68.4585405249920
2016-07-01	68.8277365596699
2016-10-01	68.8815580821557
2017-01-01	69.0948142336725
2017-04-01	69.2724417161326
2017-07-01	69.2821806784976
2017-10-01	69.2933138224866
2018-01-01	69.3241238801446
2018-04-01	69.3373203219167
2018-07-01	69.3282356550530