Quarter	Percent, Seasonally Adjusted
1999-01-01	7.74160588640080
1999-04-01	11.54307160065930
1999-07-01	10.98495400425070
1999-10-01	11.16841102746990
2000-01-01	14.07848007476400
2000-04-01	14.13390781348020
2000-07-01	12.96688014402050
2000-10-01	12.67944904075580
2001-01-01	12.21847007021030
2001-04-01	12.19260729025040
2001-07-01	12.56227107067320
2001-10-01	13.15646892587960
2002-01-01	15.86757780829050
2002-04-01	16.45277603680300
2002-07-01	15.40849693049300
2002-10-01	14.60320567097340
2003-01-01	16.84001897123630
2003-04-01	13.39894856380700
2003-07-01	13.55853489825610
2003-10-01	14.92609348116340
2004-01-01	16.62117270919130
2004-04-01	16.13513492921020
2004-07-01	15.14640815682080
2004-10-01	14.58570670590340
2005-01-01	15.02085968641240
2005-04-01	13.00351836226920
2005-07-01	12.51384218045310
2005-10-01	12.44010658429930
2006-01-01	11.87901877240450
2006-04-01	10.41518890213950
2006-07-01	8.79697547895716
2006-10-01	8.44310695928404
2007-01-01	8.37998693240991
2007-04-01	7.75906502799533
2007-07-01	7.93098536345159
2007-10-01	7.09285430947928
2008-01-01	6.65179279336113
2008-04-01	6.38232157901612
2008-07-01	4.48938284865215
2008-10-01	4.18111913083483
2009-01-01	5.14602661552084
2009-04-01	5.44590517374272
2009-07-01	6.38408663195633
2009-10-01	8.57821258104336
2010-01-01	9.07870407592481
2010-04-01	9.28307512374682
2010-07-01	9.19724374756767
2010-10-01	10.66524569693160
2011-01-01	10.87036047464240
2011-04-01	10.94936367473420
2011-07-01	9.93707686588177
2011-10-01	11.10275204377440
2012-01-01	11.30433004228450
2012-04-01	10.44309238992070
2012-07-01	11.05767567434960
2012-10-01	11.07433189409760
2013-01-01	9.99575662624306
2013-04-01	11.10374704197700
2013-07-01	10.30705041720970
2013-10-01	10.83863012950080
2014-01-01	12.27720807758600
2014-04-01	9.84752719409614
2014-07-01	8.07885546069440
2014-10-01	8.66571722022124
2015-01-01	8.57852540490470
2015-04-01	7.95613302446567
2015-07-01	7.89912863577160
2015-10-01	8.53600427601544
2016-01-01	8.28642769526131
2016-04-01	9.90855274582226
2016-07-01	7.66764410117154
2016-10-01	7.63102645508444
2017-01-01	6.47872207434010
2017-04-01	6.37768245890261
2017-07-01	4.98612890618621
2017-10-01	4.77917159662251
2018-01-01	4.20410001127672
2018-04-01	4.74344992918152