Quarter	Percent, Seasonally Adjusted
2000-01-01	55.8702520879260
2000-04-01	56.7553602001206
2000-07-01	57.3685138787407
2000-10-01	57.7504505249398
2001-01-01	58.1728311850704
2001-04-01	58.4852264074486
2001-07-01	58.5824718169440
2001-10-01	58.8080803487414
2002-01-01	59.0880157858206
2002-04-01	59.1673067502058
2002-07-01	59.7296373039025
2002-10-01	59.8246772573541
2003-01-01	59.7231741816817
2003-04-01	59.2810479387056
2003-07-01	59.3390160378205
2003-10-01	58.9177528573165
2004-01-01	59.0091814538105
2004-04-01	59.1340725577198
2004-07-01	59.3107165904562
2004-10-01	59.2328024905510
2005-01-01	59.2513141063870
2005-04-01	59.6103076706506
2005-07-01	59.6819030180770
2005-10-01	59.9461756612088
2006-01-01	60.3898211224538
2006-04-01	60.5771102284901
2006-07-01	60.7107582121741
2006-10-01	61.2373055674836
2007-01-01	61.8540343495564
2007-04-01	62.5266417486604
2007-07-01	62.6715939631831
2007-10-01	62.9330758606722
2008-01-01	63.3398528547603
2008-04-01	63.5135721355736
2008-07-01	64.0635082220972
2008-10-01	64.2460418884534
2009-01-01	64.7492128565998
2009-04-01	63.9880917813176
2009-07-01	63.6910991623359
2009-10-01	63.6545125142005
2010-01-01	61.8421834362838
2010-04-01	61.9796391871256
2010-07-01	61.9078913156228
2010-10-01	61.9974720782049
2011-01-01	61.2956015798496
2011-04-01	61.1810868243561
2011-07-01	61.0661749957957
2011-10-01	61.4930753272199
2012-01-01	61.3481741917321
2012-04-01	61.2640758316439
2012-07-01	61.3932712023206
2012-10-01	61.2472553856562
2013-01-01	60.9509317129270
2013-04-01	60.6904031465940
2013-07-01	60.4665518166299
2013-10-01	60.1944747035713
2014-01-01	59.4284162069098
2014-04-01	59.2924160756568
2014-07-01	59.6313911835785
2014-10-01	60.0673720558059
2015-01-01	60.2611315720722
2015-04-01	60.4676511395965
2015-07-01	60.3825707861173
2015-10-01	60.2852146071204
2016-01-01	60.3459481955026
2016-04-01	60.8985946480954
2016-07-01	61.1061885315878
2016-10-01	61.1656747758472
2017-01-01	61.4577004008770
2017-04-01	61.6819474631560
2017-07-01	62.1083472190324
2017-10-01	62.1810832365143
2018-01-01	62.3792798122744
2018-04-01	62.9389215584144