Quarter	Percent, Seasonally Adjusted
2000-01-01	56.0070460314936
2000-04-01	58.1316357653284
2000-07-01	57.8311895145208
2000-10-01	57.4799102985104
2001-01-01	56.3184775526934
2001-04-01	57.3448609186078
2001-07-01	60.4743534628544
2001-10-01	58.3744034582554
2002-01-01	56.3949776695244
2002-04-01	58.1684253717872
2002-07-01	58.7637494523872
2002-10-01	59.7134690702636
2003-01-01	59.3335181819624
2003-04-01	58.9424566071511
2003-07-01	60.4842885832424
2003-10-01	60.7510594878551
2004-01-01	61.2088201998940
2004-04-01	61.2037123264268
2004-07-01	60.6938746098885
2004-10-01	59.7914513846358
2005-01-01	62.5643945778625
2005-04-01	64.4719902959741
2005-07-01	62.1983902736962
2005-10-01	63.1213715217155
2006-01-01	65.1486480536580
2006-04-01	66.5413058400866
2006-07-01	65.1860926814702
2006-10-01	65.5071064811116
2007-01-01	65.6318161219406
2007-04-01	66.6791806884272
2007-07-01	67.0660274586817
2007-10-01	65.5586534405662
2008-01-01	65.3143336761465
2008-04-01	66.2926818874426
2008-07-01	67.8192189574309
2008-10-01	67.0603209983126
2009-01-01	64.7007378307402
2009-04-01	63.4821727034248
2009-07-01	62.2305786859961
2009-10-01	62.5709001159938
2010-01-01	61.3194635941898
2010-04-01	60.5265745908528
2010-07-01	60.2558665806620
2010-10-01	61.0457878377776
2011-01-01	60.6690990810629
2011-04-01	62.4516898096882
2011-07-01	64.9533717192646
2011-10-01	63.8072087377888
2012-01-01	64.3203554995222
2012-04-01	65.3150200651771
2012-07-01	65.0407221798258
2012-10-01	64.2049990844537
2013-01-01	64.9847040082254
2013-04-01	66.2943514428180
2013-07-01	65.5106132609737
2013-10-01	65.9748425261710
2014-01-01	64.3799391168225
2014-04-01	66.4539152717824
2014-07-01	67.5351482473416
2014-10-01	66.8866136151846
2015-01-01	67.0804296588627
2015-04-01	68.0385000589418
2015-07-01	69.9432503683633
2015-10-01	68.8567442025045
2016-01-01	67.5781252898620
2016-04-01	69.9564762429368
2016-07-01	68.5233280730498
2016-10-01	68.3047562806266
2017-01-01	70.1827587186717
2017-04-01	69.6754330498718
2017-07-01	71.1949515774096
2017-10-01	72.6477323830085
2018-01-01	71.0389643999773
2018-04-01	71.0429106969996