Quarter	Percent, Seasonally Adjusted
2002-01-01	54.4737638805523
2002-04-01	56.5952722244933
2002-07-01	55.2096388877901
2002-10-01	56.7411461481755
2003-01-01	55.6328261685341
2003-04-01	56.1901239868990
2003-07-01	57.3612191344303
2003-10-01	55.7496448077948
2004-01-01	57.4143114017297
2004-04-01	56.2784954730087
2004-07-01	56.7338870069670
2004-10-01	57.6394829358004
2005-01-01	55.5970735058850
2005-04-01	57.0316792147797
2005-07-01	55.9170276078181
2005-10-01	57.3388570044124
2006-01-01	57.2012687702001
2006-04-01	59.0980027662744
2006-07-01	58.8403865615850
2006-10-01	58.5129483065588
2007-01-01	58.2015870558350
2007-04-01	59.4871175206322
2007-07-01	60.0256504955196
2007-10-01	60.6628928799789
2008-01-01	61.6432740774788
2008-04-01	62.4763718694298
2008-07-01	61.8945012483328
2008-10-01	61.5571011315495
2009-01-01	63.4423379439972
2009-04-01	62.1970297753022
2009-07-01	59.7575976624433
2009-10-01	60.8535778217823
2010-01-01	60.8757059555573
2010-04-01	61.2045303038738
2010-07-01	61.7485939248958
2010-10-01	60.5375077585268
2011-01-01	59.6885770993397
2011-04-01	60.8613291555646
2011-07-01	60.7496948000114
2011-10-01	60.3182735357344
2012-01-01	61.6662091021881
2012-04-01	62.5285670657929
2012-07-01	62.4510600099592
2012-10-01	62.1393075160128
2013-01-01	62.1854069884975
2013-04-01	62.2234811124916
2013-07-01	62.9466981175714
2013-10-01	61.4222243612320
2014-01-01	62.8978902833690
2014-04-01	62.4734199651840
2014-07-01	61.9368449071574
2014-10-01	60.9979610461554
2015-01-01	62.4537609696030
2015-04-01	63.0383289720748
2015-07-01	63.8608028732971
2015-10-01	63.6621061011244
2016-01-01	64.6583959481198
2016-04-01	64.7167169363755
2016-07-01	64.1871806387938
2016-10-01	64.7106882427250
2017-01-01	64.4977439088414
2017-04-01	64.8128450778234
2017-07-01	65.6642301676741
2017-10-01	65.3339168440800
2018-01-01	65.8555807023486
2018-04-01	66.0185346765090