Quarter	Percent, Seasonally Adjusted
1999-04-01	32.4200435518552
1999-07-01	32.2385919388719
1999-10-01	32.1995559313148
2000-01-01	32.2723705416255
2000-04-01	32.1566803923698
2000-07-01	32.1455646709577
2000-10-01	32.3687668583866
2001-01-01	32.3204547500045
2001-04-01	32.5221193808789
2001-07-01	32.4236668237153
2001-10-01	32.3395908536658
2002-01-01	32.4180512562311
2002-04-01	32.2759643459640
2002-07-01	32.2428613067796
2002-10-01	32.1226619743396
2003-01-01	32.2312349359834
2003-04-01	32.2084344339504
2003-07-01	32.1250369905172
2003-10-01	32.1747446810457
2004-01-01	32.0775013603929
2004-04-01	32.1540128486082
2004-07-01	32.2565994654150
2004-10-01	32.0812072167984
2005-01-01	31.8777761289783
2005-04-01	32.1223005560968
2005-07-01	31.9599178931843
2005-10-01	31.7791209099865
2006-01-01	31.6127583005677
2006-04-01	31.4237243651565
2006-07-01	31.2860630791088
2006-10-01	31.4521904045588
2007-01-01	31.6615822652152
2007-04-01	31.6804455407331
2007-07-01	31.5844485886096
2007-10-01	31.4978102905145
2008-01-01	31.4080143388359
2008-04-01	31.2971077572837
2008-07-01	31.3460415421602
2008-10-01	31.2283515583221
2009-01-01	31.2077956823805
2009-04-01	31.4946375248554
2009-07-01	31.5721217909335
2009-10-01	31.6804417700032
2010-01-01	31.8813341613357
2010-04-01	31.7038415820430
2010-07-01	31.5243532123600
2010-10-01	31.7038171697232
2011-01-01	31.7109163612082
2011-04-01	31.6653333320032
2011-07-01	31.7601108058365
2011-10-01	31.6872273775560
2012-01-01	31.7269119287905
2012-04-01	31.5082083483274
2012-07-01	31.4414684846403
2012-10-01	31.2822022213321
2013-01-01	31.3817240859839
2013-04-01	31.3189640230121
2013-07-01	31.1401536279619
2013-10-01	31.1817367342216
2014-01-01	31.1580481722928
2014-04-01	31.1128812101124
2014-07-01	31.1441612666185
2014-10-01	31.2374240939950
2015-01-01	31.0890773802289
2015-04-01	31.1814150485744
2015-07-01	31.0904695229539
2015-10-01	30.8997667528125
2016-01-01	30.8488958379405
2016-04-01	30.7666824350026
2016-07-01	30.8230566557226
2016-10-01	30.8217523120752
2017-01-01	30.7496830074223
2017-04-01	30.6261895857531
2017-07-01	30.8625264836883
2017-10-01	30.6793564841023
2018-01-01	30.4591701167173
2018-04-01	30.5594940861214