Quarter	Percent, Seasonally Adjusted
2006-01-01	43.8938250138120
2006-04-01	44.4915404233871
2006-07-01	44.7614849586131
2006-10-01	45.2488334868342
2007-01-01	44.8511936573943
2007-04-01	44.7092586850458
2007-07-01	44.7226451676099
2007-10-01	44.2382691940210
2008-01-01	44.6562354783116
2008-04-01	45.1494450589377
2008-07-01	45.0954818483435
2008-10-01	44.5658966308037
2009-01-01	43.6127914478865
2009-04-01	43.5911085409964
2009-07-01	44.5681580232787
2009-10-01	45.2306500109332
2010-01-01	45.8008538256551
2010-04-01	46.2021893473781
2010-07-01	46.2734502618460
2010-10-01	46.8760244792974
2011-01-01	48.0447527753214
2011-04-01	48.1082276141074
2011-07-01	48.7973380491034
2011-10-01	48.7195797680073
2012-01-01	48.0994687949025
2012-04-01	48.7507783245654
2012-07-01	48.9325466097456
2012-10-01	49.7951322840330
2013-01-01	49.5915549165700
2013-04-01	49.6661627961478
2013-07-01	49.4282554865003
2013-10-01	49.4211216992563
2014-01-01	49.6351054404398
2014-04-01	49.6785411494145
2014-07-01	49.3856798992272
2014-10-01	49.4874389701948
2015-01-01	49.8841160640104
2015-04-01	50.0229636615268
2015-07-01	50.3772550765296
2015-10-01	50.3895582996877
2016-01-01	50.8562525281787
2016-04-01	50.9125719608134
2016-07-01	50.3633301849814
2016-10-01	50.4601796568842
2017-01-01	50.8366153980413
2017-04-01	51.1893804539998
2017-07-01	51.9081084745738
2017-10-01	52.2281136364243
2018-01-01	52.3618753839247
2018-04-01	51.8359167319361