Quarter	Percent, Seasonally Adjusted
1999-01-01	23.9397399656521
1999-04-01	23.7792782771790
1999-07-01	23.2995780336360
1999-10-01	24.5403986005414
2000-01-01	23.3352764181506
2000-04-01	24.0872751810333
2000-07-01	25.4584147734398
2000-10-01	24.6594267872066
2001-01-01	24.6487785424067
2001-04-01	24.9596933922037
2001-07-01	23.7849106792398
2001-10-01	23.1178589090440
2002-01-01	24.4095627420955
2002-04-01	24.0633790244222
2002-07-01	25.1761774998621
2002-10-01	24.5286998444333
2003-01-01	25.7077884025020
2003-04-01	25.1680847325388
2003-07-01	24.3359811323464
2003-10-01	24.3156479033958
2004-01-01	24.5568285767982
2004-04-01	23.8448810279540
2004-07-01	23.2303856570753
2004-10-01	23.7255170392006
2005-01-01	24.0026763020937
2005-04-01	24.9095746919514
2005-07-01	24.3861777600502
2005-10-01	22.9863233109426
2006-01-01	22.6902255084210
2006-04-01	23.2734962016409
2006-07-01	23.0578351993622
2006-10-01	23.1371450299726
2007-01-01	23.0384881019904
2007-04-01	23.6067909350656
2007-07-01	23.9317224504182
2007-10-01	23.8234499107494
2008-01-01	23.5467541751544
2008-04-01	23.1357038162297
2008-07-01	22.9895196115317
2008-10-01	22.4944513029530
2009-01-01	22.9562649979154
2009-04-01	22.6470547025843
2009-07-01	23.0651613352405
2009-10-01	24.1089421927296
2010-01-01	23.9951296904659
2010-04-01	23.5245158172304
2010-07-01	23.6919797801228
2010-10-01	24.6158984172800
2011-01-01	23.8827348054265
2011-04-01	23.8977481741377
2011-07-01	23.6545684564896
2011-10-01	23.9827450840511
2012-01-01	23.7122754308495
2012-04-01	23.5162473156978
2012-07-01	24.5103944732376
2012-10-01	25.0901543453865
2013-01-01	24.5532795439407
2013-04-01	23.9284506250789
2013-07-01	24.2025969113831
2013-10-01	24.8292494842843
2014-01-01	25.4355743312817
2014-04-01	25.3648479933960
2014-07-01	25.0749863564053
2014-10-01	24.1158127605321
2015-01-01	24.1896168220860
2015-04-01	24.9959372588871
2015-07-01	25.1989512983579
2015-10-01	24.5066224989572
2016-01-01	22.5046876536882
2016-04-01	22.4306912832466
2016-07-01	23.1022625277046
2016-10-01	23.0941093940479
2017-01-01	23.8498482836556
2017-04-01	24.3391399199058
2017-07-01	23.4786653724330
2017-10-01	23.9567066838706
2018-01-01	23.2790364115221
2018-04-01	23.1002741201311