Quarter	Percent, Seasonally Adjusted
1999-01-01	35.5616473713853
1999-04-01	35.6085896737113
1999-07-01	34.6108487195094
1999-10-01	34.3311541963331
2000-01-01	34.3207784361304
2000-04-01	33.4485325742802
2000-07-01	32.8101500359750
2000-10-01	32.6999052493827
2001-01-01	30.9753157604843
2001-04-01	30.0085759482204
2001-07-01	29.7200120785700
2001-10-01	28.8601389533254
2002-01-01	29.0130992430509
2002-04-01	29.2905498748999
2002-07-01	29.3024946460163
2002-10-01	29.4320016126170
2003-01-01	28.9179663316635
2003-04-01	27.4437361602779
2003-07-01	26.8471489680055
2003-10-01	25.9634550341130
2004-01-01	25.4494539589184
2004-04-01	24.4499247080077
2004-07-01	23.4928060196966
2004-10-01	23.9377179991336
2005-01-01	24.2508559885797
2005-04-01	23.9697582187080
2005-07-01	23.6294673860673
2005-10-01	23.2034904664799
2006-01-01	23.4905897638017
2006-04-01	23.0401699427746
2006-07-01	23.5970472597261
2006-10-01	22.5474084562887
2007-01-01	22.3643707513304
2007-04-01	21.5148258714201
2007-07-01	21.9920728395349
2007-10-01	21.4299222648959
2008-01-01	21.1473992132093
2008-04-01	20.9111119150618
2008-07-01	21.5676073976958
2008-10-01	22.1357537002434
2009-01-01	20.8640292864615
2009-04-01	21.7053033425928
2009-07-01	21.6334016002592
2009-10-01	21.6957937168986
2010-01-01	21.9885034329691
2010-04-01	22.0649525051096
2010-07-01	21.7427961244963
2010-10-01	22.0573691919634
2011-01-01	21.4374174191492
2011-04-01	21.4260401509294
2011-07-01	21.5801957644970
2011-10-01	21.4102375992543
2012-01-01	22.5374499353453
2012-04-01	23.1029998444226
2012-07-01	23.8112925427586
2012-10-01	24.0775607760615
2013-01-01	23.8477809027023
2013-04-01	23.7516348867927
2013-07-01	23.6466730846034
2013-10-01	23.2627563058368
2014-01-01	24.9047531998430
2014-04-01	26.1548247045100
2014-07-01	25.9839787391640
2014-10-01	26.4435114687662
2015-01-01	26.8302949490339
2015-04-01	27.7559600120179
2015-07-01	27.6649687010109
2015-10-01	27.7135299309980
2016-01-01	27.8845594234285
2016-04-01	27.5545737417129
2016-07-01	28.7473089811210
2016-10-01	28.8455065837333
2017-01-01	28.8694317638389
2017-04-01	28.9049066579920
2017-07-01	27.4838951549260
2017-10-01	27.5133627562872
2018-01-01	26.6668179448536
2018-04-01	27.4240818077912