Quarter	Percent, Seasonally Adjusted
2001-01-01	80.1807279891638
2001-04-01	79.9158307007924
2001-07-01	79.9097504384570
2001-10-01	79.7172537150300
2002-01-01	79.6238024998341
2002-04-01	79.3436783015538
2002-07-01	79.2549005526697
2002-10-01	79.2899555053579
2003-01-01	78.9223376191490
2003-04-01	79.2284292332912
2003-07-01	79.2332566146766
2003-10-01	79.2649104906840
2004-01-01	79.3715505124468
2004-04-01	79.1027931721804
2004-07-01	79.1180842117906
2004-10-01	78.9431275094157
2005-01-01	79.0844515804491
2005-04-01	81.0822691742266
2005-07-01	80.9225095677375
2005-10-01	80.9492510514331
2006-01-01	80.8796943179028
2006-04-01	81.1736430056265
2006-07-01	81.2056232907261
2006-10-01	81.4276186936857
2007-01-01	81.5771634610786
2007-04-01	81.2214372855594
2007-07-01	81.4946305993754
2007-10-01	81.4118989503432
2008-01-01	81.6277672391480
2008-04-01	81.7826459794500
2008-07-01	81.7250332576762
2008-10-01	81.5836677106036
2009-01-01	81.4092843435127
2009-04-01	81.4274577167286
2009-07-01	81.2147951455948
2009-10-01	81.4665970661362
2010-01-01	81.5641656911371
2010-04-01	81.8263677880116
2010-07-01	82.0410833102731
2010-10-01	82.0515528585641
2011-01-01	82.2446160817670
2011-04-01	82.4881743811459
2011-07-01	82.4545330454590
2011-10-01	82.4990061143726
2012-01-01	82.2975809916167
2012-04-01	82.4977798155530
2012-07-01	82.6780431091191
2012-10-01	82.9723576393897
2013-01-01	83.2578597956332
2013-04-01	83.2471375144476
2013-07-01	83.4251948686840
2013-10-01	83.4538508088006
2014-01-01	83.4966341193656
2014-04-01	83.5792677924901
2014-07-01	83.7444133291730
2014-10-01	83.6242383014761
2015-01-01	83.5917567663637
2015-04-01	83.4477178659466
2015-07-01	83.3662463530748
2015-10-01	83.6559318098588
2016-01-01	83.8253050427140
2016-04-01	83.9162160847337
2016-07-01	83.8336589899904
2016-10-01	83.9543247884437
2017-01-01	84.1439098610540
2017-04-01	84.2851080461997
2017-07-01	84.4344889059690
2017-10-01	84.3161580628348
2018-01-01	84.3153368771198
2018-04-01	84.3286061713279