Quarter	Percent, Seasonally Adjusted
1999-01-01	11.79886815577440
1999-04-01	11.24074010922170
1999-07-01	10.78008335697460
1999-10-01	10.42172469953620
2000-01-01	10.07316182642030
2000-04-01	9.81234760100746
2000-07-01	9.48569910260706
2000-10-01	9.28742250091135
2001-01-01	7.56941008696282
2001-04-01	7.57205045179574
2001-07-01	7.56591519077659
2001-10-01	7.64743639603893
2002-01-01	8.08804276439649
2002-04-01	8.15450465784219
2002-07-01	8.54121641979246
2002-10-01	8.57828039891001
2003-01-01	8.55670184925615
2003-04-01	8.54562736514519
2003-07-01	8.52670320733806
2003-10-01	8.54555095444497
2004-01-01	8.53137052333943
2004-04-01	8.41553955661432
2004-07-01	8.34649602879285
2004-10-01	7.92202253187554
2005-01-01	7.59043390459838
2005-04-01	7.39906720257499
2005-07-01	6.86852782066409
2005-10-01	6.84533703350870
2006-01-01	6.58275535539228
2006-04-01	6.44657147027952
2006-07-01	6.34232087910084
2006-10-01	6.18429365031504
2007-01-01	6.13731989827566
2007-04-01	6.17710666536967
2007-07-01	6.45821483855742
2007-10-01	7.02448251456030
2008-01-01	7.77980093959330
2008-04-01	9.01911474521507
2008-07-01	10.54395198552640
2008-10-01	13.12519466843640
2009-01-01	16.44246311442860
2009-04-01	17.47496931151730
2009-07-01	18.22643764162870
2009-10-01	18.87233139120020
2010-01-01	19.36018210036740
2010-04-01	19.62192654337840
2010-07-01	19.74522418716910
2010-10-01	19.98831085092020
2011-01-01	20.18547801391420
2011-04-01	20.63454251454100
2011-07-01	21.46913370656940
2011-10-01	22.41447097455580
2012-01-01	23.48617265764660
2012-04-01	24.50784789745840
2012-07-01	25.19750802223760
2012-10-01	25.73301664791670
2013-01-01	26.15473800157670
2013-04-01	25.62278363503990
2013-07-01	25.87607552723900
2013-10-01	25.26419544284230
2014-01-01	24.81898507293290
2014-04-01	24.01442035846080
2014-07-01	23.27079082212520
2014-10-01	22.80562466665410
2015-01-01	22.08525429717100
2015-04-01	21.22139121497940
2015-07-01	20.54867329681510
2015-10-01	19.71266136033700
2016-01-01	19.03404591964130
2016-04-01	18.61638347355450
2016-07-01	17.95407810131450
2016-10-01	17.32193682436610
2017-01-01	16.66606228034240
2017-04-01	15.99043104337460
2017-07-01	15.43718134348930
2017-10-01	14.95379126203920
2018-01-01	14.53882822392780
2018-04-01	14.08159140365100
2018-07-01	13.72985117885300