Quarter	Percent, Seasonally Adjusted
1999-01-01	62.4820245833796
1999-04-01	62.3895261138241
1999-07-01	62.4555045183714
1999-10-01	61.8909479050972
2000-01-01	62.4984853361261
2000-04-01	62.5643850130256
2000-07-01	62.2783508483309
2000-10-01	62.6842497629745
2001-01-01	62.7332181307118
2001-04-01	62.4123774182474
2001-07-01	63.1016397052813
2001-10-01	63.3656335356526
2002-01-01	62.5335563831773
2002-04-01	62.8055856096558
2002-07-01	62.3872299611295
2002-10-01	62.3292595349698
2003-01-01	62.0169388514576
2003-04-01	61.8990218161159
2003-07-01	62.1558325944898
2003-10-01	61.7835541698250
2004-01-01	62.0450926474622
2004-04-01	62.4540880612146
2004-07-01	62.8728991572015
2004-10-01	62.2057703712593
2005-01-01	62.3938368104361
2005-04-01	62.1583924380786
2005-07-01	62.2561106924577
2005-10-01	63.1033644767831
2006-01-01	63.0512556191125
2006-04-01	63.1039394442653
2006-07-01	63.6280356328728
2006-10-01	63.6735621372270
2007-01-01	63.6834843077940
2007-04-01	63.3810361167074
2007-07-01	62.8036367241147
2007-10-01	62.9973030533770
2008-01-01	63.3327402261030
2008-04-01	63.9501013557285
2008-07-01	63.8954652745622
2008-10-01	63.7463274139563
2009-01-01	62.6249755182543
2009-04-01	61.6940049036685
2009-07-01	61.4031849123858
2009-10-01	59.9228492349610
2010-01-01	59.9722188168633
2010-04-01	59.6867848565881
2010-07-01	59.4366644723086
2010-10-01	59.1503836314790
2011-01-01	59.2638496447519
2011-04-01	59.2503683613286
2011-07-01	59.1871369902953
2011-10-01	58.6751570688480
2012-01-01	58.7774767890200
2012-04-01	58.4674134797288
2012-07-01	58.1366953198956
2012-10-01	58.2440005993336
2013-01-01	58.1317872244507
2013-04-01	58.1560330345682
2013-07-01	57.9819327750118
2013-10-01	57.7037519383298
2014-01-01	57.4654690608363
2014-04-01	57.8177533774942
2014-07-01	58.3743736478963
2014-10-01	58.7013474090167
2015-01-01	58.5771890580916
2015-04-01	58.1989112464562
2015-07-01	58.0443864409926
2015-10-01	58.6991842268788
2016-01-01	59.8056454008912
2016-04-01	59.9437402209811
2016-07-01	59.4367186597487
2016-10-01	59.3253007746601
2017-01-01	58.5303738555950
2017-04-01	58.5913905706313
2017-07-01	58.7438821097200
2017-10-01	58.9016822293628
2018-01-01	59.2181905496895
2018-04-01	59.5678511728148