Quarter	Percent, Seasonally Adjusted
1999-07-01	36.4416422771210
1999-10-01	36.9189263086787
2000-01-01	37.0639490242500
2000-04-01	36.6385565031069
2000-07-01	36.9603050930024
2000-10-01	37.3017899119968
2001-01-01	37.5583966264530
2001-04-01	38.3099063692431
2001-07-01	38.5843082431293
2001-10-01	39.4189786118720
2002-01-01	39.7732822335893
2002-04-01	39.6538318245748
2002-07-01	39.0957085829607
2002-10-01	39.1373736653293
2003-01-01	39.6844234292575
2003-04-01	39.1717663299916
2003-07-01	39.8138684960928
2003-10-01	39.6768764605190
2004-01-01	39.8825489794091
2004-04-01	40.2108721253951
2004-07-01	40.2204918172988
2004-10-01	40.3337831198150
2005-01-01	39.8084716741192
2005-04-01	39.6706493201506
2005-07-01	39.1450044494706
2005-10-01	38.2385291498621
2006-01-01	37.0197879282968
2006-04-01	36.1817007769960
2006-07-01	35.4911737368141
2006-10-01	34.9611079640569
2007-01-01	34.2497026255643
2007-04-01	33.0146940192025
2007-07-01	32.7247087428390
2007-10-01	32.6620637762798
2008-01-01	32.0447312757865
2008-04-01	31.7826406271618
2008-07-01	30.4870852417476
2008-10-01	29.6043236187046
2009-01-01	29.0568771376110
2009-04-01	29.6749734960573
2009-07-01	30.0702423392822
2009-10-01	29.6544378128408
2010-01-01	30.3621519610088
2010-04-01	30.3851212230655
2010-07-01	30.0962532099723
2010-10-01	29.7062054055705
2011-01-01	30.0331936761654
2011-04-01	29.2884032328685
2011-07-01	29.8509060105619
2011-10-01	29.9547108481206
2012-01-01	30.1081667885417
2012-04-01	31.3417500895879
2012-07-01	30.7274508943844
2012-10-01	30.7525774042978
2013-01-01	30.1999757247254
2013-04-01	29.9886486955653
2013-07-01	30.1787869626761
2013-10-01	31.0029232544915
2014-01-01	31.6800517079260
2014-04-01	31.8299151581770
2014-07-01	32.7081794776548
2014-10-01	32.9727579987438
2015-01-01	33.2049138552423
2015-04-01	33.7523157881418
2015-07-01	33.8497422012813
2015-10-01	34.3519877272374
2016-01-01	34.1808546622392
2016-04-01	34.0177117157992
2016-07-01	34.4324653659192
2016-10-01	34.4768601250088
2017-01-01	34.3552710179183
2017-04-01	34.7944903791220
2017-07-01	34.2214204037906
2017-10-01	33.6370399633000
2018-01-01	33.8163201545951
2018-04-01	33.6877828190920
2018-07-01	33.7519431243162