Quarter	Percent, Seasonally Adjusted
2000-01-01	58.6277053268083
2000-04-01	59.4123830406314
2000-07-01	59.2036951074298
2000-10-01	60.3423573207536
2001-01-01	61.6448762283058
2001-04-01	61.1123110135916
2001-07-01	61.7980996156936
2001-10-01	62.0740665631307
2002-01-01	61.8615016252517
2002-04-01	63.7378739473788
2002-07-01	62.5587457602048
2002-10-01	61.8737889900024
2003-01-01	63.8123842226417
2003-04-01	62.0919607468384
2003-07-01	62.7930280383516
2003-10-01	63.1385516033228
2004-01-01	61.4286884341327
2004-04-01	61.3740963484816
2004-07-01	60.7740867897236
2004-10-01	61.0423107619218
2005-01-01	61.3048788245438
2005-04-01	59.6790698924211
2005-07-01	61.5678169279507
2005-10-01	60.8637290872885
2006-01-01	61.6494935363647
2006-04-01	61.6259217819892
2006-07-01	62.4402583625469
2006-10-01	62.8765446476922
2007-01-01	63.5188787860795
2007-04-01	64.4991325953258
2007-07-01	64.6618383701832
2007-10-01	65.3270942239724
2008-01-01	64.9620591544946
2008-04-01	64.6726254573447
2008-07-01	64.4533517782337
2008-10-01	64.8400565150882
2009-01-01	64.8546284896694
2009-04-01	64.7139113009346
2009-07-01	65.0111899578500
2009-10-01	65.4328068182165
2010-01-01	65.2527261735189
2010-04-01	66.2177195939909
2010-07-01	64.8014794692501
2010-10-01	65.9130667212691
2011-01-01	66.1069228517932
2011-04-01	67.2472603626561
2011-07-01	66.9574336081396
2011-10-01	67.1544523820279
2012-01-01	67.5253961016294
2012-04-01	67.3519276552645
2012-07-01	67.8150652505352
2012-10-01	67.3326719445906
2013-01-01	67.0609229450434
2013-04-01	68.1164993379623
2013-07-01	68.2813454109920
2013-10-01	68.1166867589498
2014-01-01	68.5080958699372
2014-04-01	68.2348000618491
2014-07-01	69.6796745127777
2014-10-01	70.3315671657478
2015-01-01	69.4770876744968
2015-04-01	69.9074466992745
2015-07-01	70.1310865486794
2015-10-01	69.7298990668723
2016-01-01	70.2027635455540
2016-04-01	70.2073322979607
2016-07-01	70.5018064642849
2016-10-01	70.4445720347734
2017-01-01	70.2387407089040
2017-04-01	69.1960589736941
2017-07-01	69.2851302101861
2017-10-01	68.7892329056099
2018-01-01	68.6288716092512
2018-04-01	69.0474723598549