Quarter	Percent, Seasonally Adjusted
2005-01-01	18.1778229590700
2005-04-01	17.9775866792874
2005-07-01	17.9257911994787
2005-10-01	17.3843373328471
2006-01-01	17.2222642282085
2006-04-01	16.5372639358018
2006-07-01	16.3638822248056
2006-10-01	16.1004798314728
2007-01-01	15.3219703250422
2007-04-01	14.9931485733984
2007-07-01	14.8303368910659
2007-10-01	14.7144496633965
2008-01-01	14.4509745867003
2008-04-01	15.1376131840336
2008-07-01	15.6880879690373
2008-10-01	16.7394447413529
2009-01-01	18.9100288483638
2009-04-01	20.0437893446901
2009-07-01	20.5504863144882
2009-10-01	20.6609759272190
2010-01-01	21.1289279846141
2010-04-01	21.1467288541588
2010-07-01	20.8022127180081
2010-10-01	20.7019002612958
2011-01-01	21.0172803028077
2011-04-01	20.9557875253741
2011-07-01	21.1795675134255
2011-10-01	21.7878677099021
2012-01-01	22.5043001897428
2012-04-01	23.2588712392246
2012-07-01	23.7902430838075
2012-10-01	24.3187466967678
2013-01-01	24.4311443226382
2013-04-01	24.1728171326878
2013-07-01	24.1903483094122
2013-10-01	24.1378167235901
2014-01-01	24.3543581415892
2014-04-01	23.8115400800999
2014-07-01	23.5438101050848
2014-10-01	23.2579583012722
2015-01-01	22.7541053752457
2015-04-01	22.5067468263552
2015-07-01	22.2335560860345
2015-10-01	21.8739809434029
2016-01-01	21.4290282923806
2016-04-01	21.1086030589756
2016-07-01	20.7045988822305
2016-10-01	20.3599396089680
2017-01-01	19.4732176536125
2017-04-01	19.1677662253735
2017-07-01	18.5789343468211
2017-10-01	17.9505866685061
2018-01-01	17.4659936636819
2018-04-01	17.0644710697765