Quarter	Percent, Seasonally Adjusted
1998-04-01	68.0000000000000
1999-04-01	67.9000000000000
2000-04-01	67.4000000000000
2001-04-01	67.8000000000000
2002-04-01	67.7000000000000
2003-04-01	67.8000000000000
2004-04-01	67.3000000000000
2005-04-01	67.0000000000000
2006-04-01	67.4000000000000
2007-04-01	67.6000000000000
2008-04-01	68.2000000000000
2009-04-01	68.2000000000000
2010-01-01	66.8830493537556
2010-04-01	66.9853027189849
2010-07-01	67.1433639292047
2010-10-01	66.9806092159688
2011-01-01	67.3949021830596
2011-04-01	67.3661344734274
2011-07-01	67.3632240902697
2011-10-01	67.6904934666569
2012-01-01	67.4442126214246
2012-04-01	67.4138070967146
2012-07-01	67.6969399263857
2012-10-01	67.5190758351818
2013-01-01	67.5521834538174
2013-04-01	67.4726989325754
2013-07-01	67.4914332938708
2013-10-01	67.6307608491990
2014-01-01	67.4909894898108
2014-04-01	67.8685510716329
2014-07-01	67.8660235941336
2014-10-01	68.4070045708344
2015-01-01	68.1030787028830
2015-04-01	67.9735790308145
2015-07-01	68.0156323128133
2015-10-01	68.4955183106400
2016-01-01	68.7042618118662
2016-04-01	68.3969117935951
2016-07-01	68.4977618377044
2016-10-01	68.6754974316984
2017-01-01	68.5731636915706
2017-04-01	68.3785960199708
2017-07-01	68.3639698820988
2017-10-01	68.4612728132476
2018-01-01	68.6022569034574
2018-04-01	68.5069480042598