Quarter	Percent, Seasonally Adjusted
1998-01-01	9.47877110964806
1998-04-01	10.17114440597420
1998-07-01	12.93917053816250
1998-10-01	14.39711178941590
1999-01-01	16.93229235264190
1999-04-01	17.56790829938490
1999-07-01	17.43038768632080
1999-10-01	18.88508868092070
2000-01-01	19.06515792001460
2000-04-01	19.15960785516590
2000-07-01	18.11543053216460
2000-10-01	18.58345027443900
2001-01-01	18.24895233442260
2001-04-01	17.80257751319810
2001-07-01	17.87147149292540
2001-10-01	17.55365064514030
2002-01-01	17.37306192681410
2002-04-01	16.93497888742370
2002-07-01	16.63351189152740
2002-10-01	15.34695532338730
2003-01-01	15.84026699048750
2003-04-01	17.40025475816260
2003-07-01	19.39086082362830
2003-10-01	20.84813089321040
2004-01-01	21.49466082534700
2004-04-01	22.73626582432070
2004-07-01	22.03633115219090
2004-10-01	22.51629745517210
2005-01-01	22.35267065672530
2005-04-01	18.90303476863950
2005-07-01	17.98984472431560
2005-10-01	18.03362672455890
2006-01-01	18.71696712014360
2006-04-01	17.00927571830840
2006-07-01	16.56084348868850
2006-10-01	14.11999957606400
2007-01-01	12.14782861396670
2007-04-01	11.27648325520400
2007-07-01	9.50895425062653
2007-10-01	9.39244677289684
2008-01-01	10.03422519689710
2008-04-01	9.64647815011590
2008-07-01	9.51612478861645
2008-10-01	10.12893999730080
2009-01-01	12.20333481869260
2009-04-01	15.77592259732980
2009-07-01	18.54070072088310
2009-10-01	19.84374400538800
2010-01-01	19.33741991333880
2010-04-01	18.76232774317830
2010-07-01	17.65019792833610
2010-10-01	17.15268544032150
2011-01-01	16.66856792519310
2011-04-01	18.45076964828260
2011-07-01	19.06869553673790
2011-10-01	18.40201132844490
2012-01-01	20.06265124745150
2012-04-01	20.96830098828110
2012-07-01	18.92687860474750
2012-10-01	19.47100168273790
2013-01-01	19.76572976963450
2013-04-01	17.89475487510340
2013-07-01	18.63491322252570
2013-10-01	18.25358480340160
2014-01-01	15.80854048559790
2014-04-01	15.03766662853690
2014-07-01	14.81146167298600
2014-10-01	14.49081467167230
2015-01-01	14.09919144470030
2015-04-01	11.45965315231780
2015-07-01	10.33620428800260
2015-10-01	9.28991414140171
2016-01-01	9.17939868615296
2016-04-01	10.85126659896380
2016-07-01	9.96422520801802
2016-10-01	9.62466627626154
2017-01-01	7.93408140190018
2017-04-01	7.60999277795553
2017-07-01	8.11799582242940
2017-10-01	5.85947887290601
2018-01-01	6.74799936314596
2018-04-01	6.29490559750124