Quarter	Percent, Seasonally Adjusted
1999-01-01	13.76193496694930
1999-04-01	13.80287832533800
1999-07-01	15.27137854773310
1999-10-01	12.16616194143360
2000-01-01	13.88694451894830
2000-04-01	13.27157909844400
2000-07-01	14.38913816482470
2000-10-01	12.07578146940010
2001-01-01	15.27085659044090
2001-04-01	15.41154063931640
2001-07-01	17.76721456591460
2001-10-01	14.95019541478100
2002-01-01	17.49764186824890
2002-04-01	16.48521759764070
2002-07-01	18.52407237949050
2002-10-01	15.71914586387210
2003-01-01	16.07664346004560
2003-04-01	15.83986997385340
2003-07-01	18.13937004936640
2003-10-01	15.23770053014210
2004-01-01	18.30313033976910
2004-04-01	18.17642673173380
2004-07-01	19.35535804497840
2004-10-01	15.43265889257860
2005-01-01	19.08959227467810
2005-04-01	18.57557179423660
2005-07-01	19.57263313459730
2005-10-01	16.40488894969670
2006-01-01	10.14482548177360
2006-04-01	9.80192749602946
2006-07-01	11.22227055241410
2006-10-01	9.96756318421408
2007-01-01	9.20414462081129
2007-04-01	9.79590571440750
2007-07-01	10.90970058759540
2007-10-01	10.17595608111950
2008-01-01	13.50418618072910
2008-04-01	13.29909066971580
2008-07-01	15.65552461966800
2008-10-01	17.98113633005980
2009-01-01	18.79240519644450
2009-04-01	16.82854566533560
2009-07-01	18.32502026141300
2009-10-01	18.82681199316920
2010-01-01	17.86607435771950
2010-04-01	17.64170933738310
2010-07-01	17.99500113190640
2010-10-01	18.00450112528130
2011-01-01	16.64955226022270
2011-04-01	16.49480161256100
2011-07-01	18.66718166376250
2011-10-01	22.91476086359030
2012-01-01	18.87797626719600
2012-04-01	18.62987091814030
2012-07-01	20.17592130831800
2012-10-01	22.69686224660470
2013-01-01	19.74501950764770
2013-04-01	19.74748972588230
2013-07-01	22.08910040150340
2013-10-01	22.36700141090550
2014-01-01	20.75476428389800
2014-04-01	19.58717162652350
2014-07-01	22.01275730670030
2014-10-01	21.45843878790310
2015-01-01	24.77868271954670
2015-04-01	23.06153910253740
2015-07-01	25.33327447691360
2015-10-01	26.56106327844190
2016-01-01	25.85989476888290
2016-04-01	23.37725129940770
2016-07-01	25.12611400706240
2016-10-01	26.32484790265770
2017-01-01	25.42673107890500
2017-04-01	24.33954259709210
2017-07-01	25.69408172284940
2017-10-01	27.59957181351740
2018-01-01	25.64595177416190
2018-04-01	24.37268243510820