Quarter	Percent, Seasonally Adjusted
2002-01-01	67.1615106018311
2002-04-01	69.4588585134841
2002-07-01	68.2285017698714
2002-10-01	69.4113364922193
2003-01-01	68.7817619559569
2003-04-01	68.9043859896079
2003-07-01	69.9184496437895
2003-10-01	67.9992851602238
2004-01-01	69.5288709788232
2004-04-01	68.8886762363928
2004-07-01	69.3106888736450
2004-10-01	69.4903897557314
2005-01-01	69.1663857155785
2005-04-01	69.3870752540909
2005-07-01	68.7137595910112
2005-10-01	69.3150192959368
2006-01-01	70.0064777733105
2006-04-01	70.9537678894916
2006-07-01	71.6804642545773
2006-10-01	71.4403107753104
2007-01-01	71.4215640244347
2007-04-01	72.2433047398830
2007-07-01	73.0591102282232
2007-10-01	73.7825412447118
2008-01-01	74.2415584812131
2008-04-01	74.3666065734241
2008-07-01	73.9940240698024
2008-10-01	74.0381738310032
2009-01-01	74.8247361088639
2009-04-01	74.0647242113051
2009-07-01	72.6330253244032
2009-10-01	72.6581827630978
2010-01-01	72.9780145572329
2010-04-01	73.1481807724539
2010-07-01	73.1433537495212
2010-10-01	72.5427023454254
2011-01-01	72.4883989089831
2011-04-01	73.4087495816756
2011-07-01	72.4191794580970
2011-10-01	73.0382046997830
2012-01-01	73.6748259022698
2012-04-01	74.8384219307681
2012-07-01	74.4674673502064
2012-10-01	74.6553129219021
2013-01-01	74.2403773115710
2013-04-01	73.3751939367799
2013-07-01	74.5789363036092
2013-10-01	73.7571287596411
2014-01-01	75.0140062279504
2014-04-01	74.6317572878787
2014-07-01	74.2217185085360
2014-10-01	74.3572683072985
2015-01-01	74.8636324038464
2015-04-01	75.6900469841015
2015-07-01	75.9873868564820
2015-10-01	76.3939467286816
2016-01-01	76.3977064753673
2016-04-01	76.4613721223050
2016-07-01	76.2154432418401
2016-10-01	76.1161959421919
2017-01-01	76.2206148383274
2017-04-01	76.7705995605251
2017-07-01	77.3751557129450
2017-10-01	77.4762628972470
2018-01-01	77.5336196935530
2018-04-01	77.8879498137228