Quarter	Percent, Seasonally Adjusted
2000-01-01	61.5037749251806
2000-04-01	61.4327027481108
2000-07-01	61.0712079630238
2000-10-01	60.8779754291448
2001-01-01	60.3731002233096
2001-04-01	59.4423060332094
2001-07-01	58.7981591291816
2001-10-01	58.0519320535702
2002-01-01	57.5478810543213
2002-04-01	57.1573486280678
2002-07-01	56.6353410530097
2002-10-01	56.2836675626534
2003-01-01	56.2256699257803
2003-04-01	56.5565467048900
2003-07-01	56.5631401878901
2003-10-01	56.5787808123384
2004-01-01	56.7451038430106
2004-04-01	56.9470934775549
2004-07-01	57.0651227229360
2004-10-01	58.0045701201978
2005-01-01	58.4119033269444
2005-04-01	58.3204150004211
2005-07-01	59.2443635484364
2005-10-01	59.4457748901179
2006-01-01	59.3308299344791
2006-04-01	60.3008714528984
2006-07-01	61.4974620575115
2006-10-01	62.2969825710550
2007-01-01	62.8179665619763
2007-04-01	63.5269999288595
2007-07-01	63.6187319823816
2007-10-01	64.6081506764604
2008-01-01	65.7716391053066
2008-04-01	66.0958720869318
2008-07-01	66.5524308952491
2008-10-01	66.7805125891427
2009-01-01	66.6215059839810
2009-04-01	66.1650080777715
2009-07-01	66.1296380484040
2009-10-01	65.6082180488307
2010-01-01	65.1036286252677
2010-04-01	65.2349661486415
2010-07-01	65.3963831701006
2010-10-01	65.5440189884670
2011-01-01	65.7749157269393
2011-04-01	66.0545917010576
2011-07-01	66.0897927181423
2011-10-01	66.0644580604516
2012-01-01	66.1297756037543
2012-04-01	66.4222668005883
2012-07-01	66.2504521602049
2012-10-01	66.3622849522661
2013-01-01	66.3041455991366
2013-04-01	66.5760898433943
2013-07-01	66.7049816772166
2013-10-01	66.8992834442841
2014-01-01	67.3521897585880
2014-04-01	67.9372997906221
2014-07-01	68.6236157901050
2014-10-01	68.8841568610358
2015-01-01	68.9443559575979
2015-04-01	68.7519524178296
2015-07-01	69.3743112141569
2015-10-01	69.9174535291870
2016-01-01	70.6115608199884
2016-04-01	70.7053526430949
2016-07-01	70.9654934525221
2016-10-01	71.6699590023812
2017-01-01	72.3386496187001
2017-04-01	72.5930464505861
2017-07-01	72.9954247057133
2017-10-01	73.2430507914264
2018-01-01	73.6198706078302
2018-04-01	74.0879520152279