Quarter	Percent, Seasonally Adjusted
1999-01-01	16.30589571770350
1999-04-01	16.45783965169630
1999-07-01	16.43208676156220
1999-10-01	17.11837061313840
2000-01-01	16.07475085585010
2000-04-01	15.47585667118960
2000-07-01	15.51583227031500
2000-10-01	16.18645020063420
2001-01-01	15.95921997033940
2001-04-01	15.89207065298300
2001-07-01	15.04329108744550
2001-10-01	14.36683062095090
2002-01-01	14.34196759955530
2002-04-01	14.41557291857470
2002-07-01	14.99963642991970
2002-10-01	16.55757838424720
2003-01-01	16.12451953324470
2003-04-01	15.45165156541860
2003-07-01	15.59424214547760
2003-10-01	15.45174181631980
2004-01-01	15.01745842261370
2004-04-01	13.73467880562490
2004-07-01	13.06956129428690
2004-10-01	13.58456183540540
2005-01-01	13.39887212075670
2005-04-01	13.61862437852780
2005-07-01	14.21093413448910
2005-10-01	13.10967897008350
2006-01-01	12.55584554224450
2006-04-01	12.23822112232290
2006-07-01	13.75250615217610
2006-10-01	13.54163390365890
2007-01-01	13.15166919396470
2007-04-01	12.04647355841890
2007-07-01	13.19875217998930
2007-10-01	12.47620867591210
2008-01-01	12.20172042917780
2008-04-01	11.54586212827420
2008-07-01	11.57239469713690
2008-10-01	10.62464400157360
2009-01-01	11.61997876852610
2009-04-01	12.30516367821500
2009-07-01	12.46070655738450
2009-10-01	11.81194427879180
2010-01-01	11.73040858145240
2010-04-01	11.27409966476910
2010-07-01	12.98609710692250
2010-10-01	11.58559365649010
2011-01-01	11.47489373653010
2011-04-01	11.48201094844960
2011-07-01	12.09784801739040
2011-10-01	11.49737486620850
2012-01-01	10.55632440210270
2012-04-01	11.31361566533800
2012-07-01	10.43054827413340
2012-10-01	11.40529987958900
2013-01-01	11.25027741886760
2013-04-01	11.66275415829350
2013-07-01	11.08373561403200
2013-10-01	11.34916633853440
2014-01-01	10.55596582719310
2014-04-01	11.04484346051160
2014-07-01	12.42853526037660
2014-10-01	12.84505324204060
2015-01-01	12.03951334439650
2015-04-01	11.10700423464360
2015-07-01	10.77738742052590
2015-10-01	11.79439420181860
2016-01-01	12.00100681141460
2016-04-01	10.83778157494400
2016-07-01	11.27881024987110
2016-10-01	10.26729656624430
2017-01-01	10.33599844223580
2017-04-01	10.14009738310020
2017-07-01	9.22982560733525
2017-10-01	9.22636420459001
2018-01-01	10.28640942510730
2018-04-01	10.52386093449210