Quarter	Percent, Seasonally Adjusted
1999-01-01	12.75620353738150
1999-04-01	12.63272498312610
1999-07-01	13.17477105789820
1999-10-01	13.06439744368090
2000-01-01	12.86483396394450
2000-04-01	12.44532219720850
2000-07-01	12.22691781851170
2000-10-01	12.68007074738340
2001-01-01	12.52883559849860
2001-04-01	12.26954223033950
2001-07-01	11.61997247138810
2001-10-01	11.72385357636770
2002-01-01	11.07393924576860
2002-04-01	11.43472486115530
2002-07-01	12.25567143151860
2002-10-01	12.78016286208500
2003-01-01	12.64676718695660
2003-04-01	12.42320472683670
2003-07-01	12.51199778801410
2003-10-01	12.30820370164660
2004-01-01	11.99379849855620
2004-04-01	11.33193008542220
2004-07-01	10.89974520073840
2004-10-01	11.38002611806410
2005-01-01	11.24835707504190
2005-04-01	11.36211484559240
2005-07-01	11.66646439621390
2005-10-01	10.55997059431340
2006-01-01	10.71354936065300
2006-04-01	10.56395763820560
2006-07-01	11.23062380375640
2006-10-01	11.32816398903910
2007-01-01	11.07853365484060
2007-04-01	10.14037013030260
2007-07-01	10.97291049811050
2007-10-01	10.50846636869470
2008-01-01	10.21902858259480
2008-04-01	10.13466873059420
2008-07-01	9.64890629920198
2008-10-01	9.57324910353107
2009-01-01	10.49824328297770
2009-04-01	10.33446315095130
2009-07-01	10.44752567973350
2009-10-01	10.15009066723120
2010-01-01	9.88704573176896
2010-04-01	9.70358570408430
2010-07-01	10.89012352154180
2010-10-01	9.64766714808219
2011-01-01	9.47312153762897
2011-04-01	9.98564116859876
2011-07-01	10.21370303395000
2011-10-01	9.76826770098381
2012-01-01	9.34618756607734
2012-04-01	9.85880041378846
2012-07-01	8.78160466912628
2012-10-01	8.95356225019032
2013-01-01	8.86857531117510
2013-04-01	9.53032542168372
2013-07-01	9.35985495766690
2013-10-01	9.49387385940945
2014-01-01	9.06332657779481
2014-04-01	9.31290871972953
2014-07-01	9.99229789315238
2014-10-01	10.26618536862770
2015-01-01	9.73542862000980
2015-04-01	8.93169939239735
2015-07-01	8.42553335376326
2015-10-01	9.67978774954681
2016-01-01	10.26357612128580
2016-04-01	9.55748372489312
2016-07-01	9.46771670407742
2016-10-01	8.75878399564480
2017-01-01	8.55522618272591
2017-04-01	8.25012508762646
2017-07-01	7.96506662472072
2017-10-01	7.82162787400307
2018-01-01	8.24725425781355
2018-04-01	8.18732908003383