Quarter	Percent, Seasonally Adjusted
2000-01-01	67.9064253644568
2000-04-01	68.4204331973968
2000-07-01	68.8355270209140
2000-10-01	69.4488247236070
2001-01-01	70.5517812743816
2001-04-01	69.1207162099375
2001-07-01	69.6805068660790
2001-10-01	69.9474643687139
2002-01-01	70.3343933025021
2002-04-01	70.7718043166657
2002-07-01	71.7843154594618
2002-10-01	70.6800641175768
2003-01-01	69.9117117327188
2003-04-01	69.7181752181116
2003-07-01	70.2067947307978
2003-10-01	69.6389302290359
2004-01-01	70.2442049124287
2004-04-01	70.5242582784606
2004-07-01	70.8070348511115
2004-10-01	70.1699277193737
2005-01-01	70.1100892178228
2005-04-01	69.7203480593588
2005-07-01	68.9546921539714
2005-10-01	69.1646451043841
2006-01-01	69.7660288218122
2006-04-01	69.7237487740253
2006-07-01	68.9474671462516
2006-10-01	68.9697476244942
2007-01-01	68.6119627254344
2007-04-01	68.3551517700174
2007-07-01	68.2231343239581
2007-10-01	67.4464711316734
2008-01-01	66.9737629222261
2008-04-01	66.5346300298384
2008-07-01	66.7845918128646
2008-10-01	66.3394212778547
2009-01-01	65.9772021684219
2009-04-01	65.9572953015790
2009-07-01	65.1478190921745
2009-10-01	64.9507205060354
2010-01-01	64.2603029063481
2010-04-01	63.8670222501240
2010-07-01	63.0589206339248
2010-10-01	62.0692089005248
2011-01-01	61.1828541645309
2011-04-01	60.5217101741691
2011-07-01	60.1122676049934
2011-10-01	59.6801888334621
2012-01-01	59.3525425818432
2012-04-01	58.2925851912230
2012-07-01	57.8979927447833
2012-10-01	57.4327274152324
2013-01-01	56.7848219928669
2013-04-01	56.1325088101019
2013-07-01	55.8732606913646
2013-10-01	55.3013234744391
2014-01-01	54.9623025603555
2014-04-01	54.6822746246505
2014-07-01	54.2536718869118
2014-10-01	53.8897306462291
2015-01-01	53.6073689828533
2015-04-01	53.8514167421068
2015-07-01	52.7126989776502
2015-10-01	52.3054815753002
2016-01-01	52.1448431579614
2016-04-01	52.1760285472793
2016-07-01	51.7884409665518
2016-10-01	50.7621573380938
2017-01-01	50.1224755016255
2017-04-01	49.6866744737093
2017-07-01	49.6513939296842
2017-10-01	49.9972052950113
2018-01-01	49.8500436760134
2018-04-01	49.4812807521301