Quarter	Percent, Seasonally Adjusted
1999-01-01	15.73000112639590
1999-04-01	15.62410884378250
1999-07-01	15.75888613741360
1999-10-01	15.52551861148380
2000-01-01	15.70663740783350
2000-04-01	15.73223694131020
2000-07-01	15.52782621590240
2000-10-01	15.31715044607080
2001-01-01	15.53768933950720
2001-04-01	15.81307766402050
2001-07-01	15.82349434610790
2001-10-01	15.99149581209560
2002-01-01	15.63766392630210
2002-04-01	15.79903030683930
2002-07-01	15.67461797837660
2002-10-01	15.54291794864820
2003-01-01	15.64818644008230
2003-04-01	15.17108827856920
2003-07-01	14.97786248012390
2003-10-01	14.85545861461570
2004-01-01	14.84715525271310
2004-04-01	15.00833148485690
2004-07-01	15.12520750502970
2004-10-01	15.11100457437010
2005-01-01	14.98869193525800
2005-04-01	14.83005277075440
2005-07-01	14.13131111409460
2005-10-01	14.05057510075700
2006-01-01	13.58157482296160
2006-04-01	12.95627508045530
2006-07-01	13.10571452945400
2006-10-01	12.74140499823390
2007-01-01	12.82494625366420
2007-04-01	12.70859255148050
2007-07-01	12.75658328358210
2007-10-01	12.84086427337650
2008-01-01	12.78677152783100
2008-04-01	12.76134872269030
2008-07-01	12.36403387463630
2008-10-01	12.73636238606790
2009-01-01	12.79413923378860
2009-04-01	12.76560409492030
2009-07-01	13.20678258241050
2009-10-01	12.84487023534520
2010-01-01	12.86229975124100
2010-04-01	12.75629925411640
2010-07-01	12.61645042520280
2010-10-01	12.44777573712440
2011-01-01	12.48937637454110
2011-04-01	11.88328971477600
2011-07-01	11.49213243221090
2011-10-01	11.22262261762930
2012-01-01	10.66790558936870
2012-04-01	10.70381343461320
2012-07-01	10.59689743607900
2012-10-01	10.45568658114150
2013-01-01	11.31645564057660
2013-04-01	10.31882972742900
2013-07-01	10.16096898087350
2013-10-01	10.19540003785540
2014-01-01	9.06842603093477
2014-04-01	8.96677755615991
2014-07-01	8.56306952867624
2014-10-01	8.56757715428216
2015-01-01	8.25947957262375
2015-04-01	8.18915278559928
2015-07-01	7.93320619389915
2015-10-01	7.75650625849222
2016-01-01	7.80366746636093
2016-04-01	7.55568446817714
2016-07-01	7.69635727389209
2016-10-01	7.49187706666872
2017-01-01	7.05997471636274
2017-04-01	6.65012343351006
2017-07-01	6.70201872394148
2017-10-01	6.50315621928146
2018-01-01	6.16363624368447
2018-04-01	6.45254362248668