Quarter	Percent, Seasonally Adjusted
2001-01-01	66.9850917549244
2001-04-01	67.0967148192937
2001-07-01	67.2208583913839
2001-10-01	67.3523598904328
2002-01-01	67.4086342658582
2002-04-01	67.1879645697802
2002-07-01	67.2881860214435
2002-10-01	67.2388534872592
2003-01-01	67.4121643153362
2003-04-01	67.3051668168413
2003-07-01	66.8357950864606
2003-10-01	66.9596019076821
2004-01-01	66.9776474552597
2004-04-01	66.7642347026291
2004-07-01	67.1234066098990
2004-10-01	66.7667602310490
2005-01-01	66.3150313391654
2005-04-01	67.9909336469614
2005-07-01	67.3470775846775
2005-10-01	68.0631562530446
2006-01-01	67.8799961237859
2006-04-01	67.8527517773057
2006-07-01	68.0898297842744
2006-10-01	67.7688383423524
2007-01-01	68.0029143180163
2007-04-01	68.2744786545587
2007-07-01	68.4283143596885
2007-10-01	68.5607346221251
2008-01-01	68.3844121824451
2008-04-01	68.4446395864468
2008-07-01	68.3188783174055
2008-10-01	68.1763224114190
2009-01-01	68.0466020317701
2009-04-01	67.9338360315943
2009-07-01	67.3600194446530
2009-10-01	67.3179842355979
2010-01-01	67.0790410835033
2010-04-01	67.0483855443515
2010-07-01	67.2050690901128
2010-10-01	67.0956642149914
2011-01-01	67.7234044697474
2011-04-01	67.7742713867905
2011-07-01	67.8422482582759
2011-10-01	68.1158049304605
2012-01-01	68.0999828577274
2012-04-01	68.2908933082807
2012-07-01	68.2904861470580
2012-10-01	68.3745131757976
2013-01-01	68.4400166362742
2013-04-01	68.6051386012496
2013-07-01	68.6888083026430
2013-10-01	69.0018788393837
2014-01-01	68.8079514532803
2014-04-01	69.0135018456848
2014-07-01	69.5397318778956
2014-10-01	69.0889077640484
2015-01-01	69.4229817056416
2015-04-01	69.3614994581237
2015-07-01	69.5659955519479
2015-10-01	69.6600577042664
2016-01-01	69.6724835041227
2016-04-01	69.7470415806944
2016-07-01	69.4632135496064
2016-10-01	69.8129012516845
2017-01-01	70.2954988927314
2017-04-01	70.0407794787109
2017-07-01	70.2577661352675
2017-10-01	70.2832725453872
2018-01-01	70.4517057371620
2018-04-01	70.6477151347370