Quarter	Percent, Seasonally Adjusted
2005-01-01	53.5142165847340
2005-04-01	53.4388838256588
2005-07-01	53.2900030753924
2005-10-01	52.9180399930489
2006-01-01	52.9662770076483
2006-04-01	52.6032702596842
2006-07-01	52.1116730651296
2006-10-01	51.7870527962548
2007-01-01	51.2652887859855
2007-04-01	51.4029096465067
2007-07-01	51.0056733272397
2007-10-01	50.5037440822962
2008-01-01	50.1887463888343
2008-04-01	50.3476066530499
2008-07-01	50.6709070996660
2008-10-01	50.9212385980027
2009-01-01	50.8901738731989
2009-04-01	50.2792156364187
2009-07-01	51.2516057351847
2009-10-01	50.8621225315291
2010-01-01	51.1645322585934
2010-04-01	51.5922185022118
2010-07-01	51.1939862808341
2010-10-01	50.9486267040688
2011-01-01	50.1025875065852
2011-04-01	49.7765852108207
2011-07-01	49.8285403237432
2011-10-01	50.4779423332595
2012-01-01	52.2342688588469
2012-04-01	51.7028678224857
2012-07-01	51.8707321734420
2012-10-01	52.0960112050064
2013-01-01	51.0763402323391
2013-04-01	51.4417023736355
2013-07-01	51.6957103393281
2013-10-01	51.0884115712351
2014-01-01	52.1551828405082
2014-04-01	52.2464361904688
2014-07-01	52.1952483839709
2014-10-01	52.6926103500904
2015-01-01	52.0375557180166
2015-04-01	53.1536803874187
2015-07-01	53.5248385253294
2015-10-01	53.0563386098742
2016-01-01	53.0486099173585
2016-04-01	52.9748046411617
2016-07-01	51.9506137487315
2016-10-01	52.5908772773645
2017-01-01	51.8764292568199
2017-04-01	51.7772094257474
2017-07-01	51.9085034452466
2017-10-01	51.2208836366649
2018-01-01	52.0783617351165
2018-04-01	52.3963363784145