Quarter	Percent, Seasonally Adjusted
2000-01-01	59.2377923779712
2000-04-01	59.1756254922410
2000-07-01	58.7254829600804
2000-10-01	58.2975489241624
2001-01-01	59.7863640419320
2001-04-01	59.6647708238293
2001-07-01	58.4222547473775
2001-10-01	59.7547102217594
2002-01-01	61.0882239868713
2002-04-01	60.0335381705457
2002-07-01	59.7947133710604
2002-10-01	58.1594136753735
2003-01-01	59.5564362197481
2003-04-01	61.6629238253473
2003-07-01	62.2167418516543
2003-10-01	62.7367221288266
2004-01-01	61.6507657481402
2004-04-01	61.4067208680847
2004-07-01	60.2824291009941
2004-10-01	61.4873947001743
2005-01-01	60.5413002351310
2005-04-01	61.2667129146220
2005-07-01	62.4169351010414
2005-10-01	63.0491158100028
2006-01-01	65.2142232724382
2006-04-01	66.8739964248254
2006-07-01	67.1366232632496
2006-10-01	67.5569841429630
2007-01-01	67.7215813765822
2007-04-01	68.2964230789892
2007-07-01	68.2453737192114
2007-10-01	68.2385054184945
2008-01-01	70.0332945177490
2008-04-01	69.0362052425696
2008-07-01	67.1601451927601
2008-10-01	67.3900719140462
2009-01-01	63.0192734759842
2009-04-01	59.8328523741530
2009-07-01	59.4684482768665
2009-10-01	57.0201200552420
2010-01-01	54.7588205105353
2010-04-01	54.9967858741972
2010-07-01	57.8740719972607
2010-10-01	61.1655396204615
2011-01-01	62.1654546935166
2011-04-01	61.8357346112421
2011-07-01	63.4002351004503
2011-10-01	63.3936841558446
2012-01-01	63.8612134250038
2012-04-01	63.9032776274535
2012-07-01	65.6451935165634
2012-10-01	65.5330963480302
2013-01-01	66.3469494726347
2013-04-01	67.4830080499250
2013-07-01	65.8248194967904
2013-10-01	65.4805475132051
2014-01-01	67.2587411990404
2014-04-01	68.4104213481910
2014-07-01	66.8912739714001
2014-10-01	68.9397266602363
2015-01-01	68.7644567156147
2015-04-01	69.8514112688490
2015-07-01	71.2009367647559
2015-10-01	69.4836335524248
2016-01-01	69.4093787509648
2016-04-01	70.6010035164104
2016-07-01	70.4032965215189
2016-10-01	70.1044651454280
2017-01-01	71.9647747353420
2017-04-01	71.3518205051662
2017-07-01	71.8073644343435
2017-10-01	73.3530930344328
2018-01-01	71.7737185872270
2018-04-01	72.8563903047739