Quarter	Percent, Seasonally Adjusted
1999-01-01	14.52979676929680
1999-04-01	13.90816207318770
1999-07-01	13.66542479305460
1999-10-01	13.40543502776060
2000-01-01	12.72311515464540
2000-04-01	12.42916088667780
2000-07-01	12.22093383755210
2000-10-01	11.86933552655960
2001-01-01	9.32965001993162
2001-04-01	9.23147181603300
2001-07-01	9.13061789136274
2001-10-01	9.37127121963876
2002-01-01	9.93598175635076
2002-04-01	10.09313189821020
2002-07-01	10.46204699898920
2002-10-01	10.31974130927780
2003-01-01	10.43131829767460
2003-04-01	10.26614979370640
2003-07-01	10.28986722829840
2003-10-01	10.17399720095000
2004-01-01	10.03439534236980
2004-04-01	10.02440832393800
2004-07-01	9.81989598192335
2004-10-01	9.36986300928481
2005-01-01	8.49969984213828
2005-04-01	8.12796678468434
2005-07-01	7.62542181091242
2005-10-01	7.57979539431589
2006-01-01	7.64525783433494
2006-04-01	7.55405624772815
2006-07-01	7.45777734758885
2006-10-01	7.24319734987421
2007-01-01	7.06400289024421
2007-04-01	6.95087073837087
2007-07-01	7.25561474618836
2007-10-01	7.52557251929979
2008-01-01	8.03379683626332
2008-04-01	9.22209311049959
2008-07-01	10.47097010595240
2008-10-01	12.52581388381190
2009-01-01	15.24165030917340
2009-04-01	16.29212827117770
2009-07-01	16.56416687319040
2009-10-01	17.25056842589740
2010-01-01	17.77616440363730
2010-04-01	18.50301746199120
2010-07-01	18.61084190137130
2010-10-01	18.60117006296010
2011-01-01	18.92120547600130
2011-04-01	19.29054058094860
2011-07-01	20.25374358563920
2011-10-01	21.05458495280830
2012-01-01	21.91897314753430
2012-04-01	23.02026444085280
2012-07-01	23.84310585005190
2012-10-01	24.26370793819290
2013-01-01	24.48276054253490
2013-04-01	24.65375130268990
2013-07-01	24.59987251791960
2013-10-01	24.12014150801980
2014-01-01	23.57533735220540
2014-04-01	23.03467375244940
2014-07-01	22.49810045733500
2014-10-01	22.09239098694170
2015-01-01	21.62702591748770
2015-04-01	21.05233061387970
2015-07-01	20.09084730659980
2015-10-01	19.45135394230550
2016-01-01	18.91400469875160
2016-04-01	18.63942982816130
2016-07-01	18.06557897939410
2016-10-01	17.22764456023170
2017-01-01	16.83303753648670
2017-04-01	16.01112742613460
2017-07-01	15.55801706162470
2017-10-01	15.25986093185630
2018-01-01	14.87355122883110
2018-04-01	14.17754706520380
2018-07-01	13.90681484406020