Quarter	Percent, Seasonally Adjusted
1999-01-01	9.15254237288136
1999-04-01	8.97022093444217
1999-07-01	9.31954455818978
1999-10-01	9.22704517594406
2000-01-01	8.70451328979521
2000-04-01	8.82586681059178
2000-07-01	9.56437258371848
2000-10-01	9.43396226415094
2001-01-01	9.47368421052632
2001-04-01	10.06944444444440
2001-07-01	12.45791245791250
2001-10-01	12.68115942028990
2002-01-01	13.63636363636360
2002-04-01	14.80144404332130
2002-07-01	14.77663230240550
2002-10-01	13.57615894039740
2003-01-01	10.40268456375840
2003-04-01	9.71786833855799
2003-07-01	11.01190476190480
2003-10-01	8.72093023255814
2004-01-01	12.42937853107340
2004-04-01	15.52162849872770
2004-07-01	16.28959276018100
2004-10-01	15.16483516483520
2005-01-01	15.41755888650960
2005-04-01	14.31411530815110
2005-07-01	14.41774491682070
2005-10-01	12.16931216931220
2006-01-01	9.72696245733788
2006-04-01	9.76377952755906
2006-07-01	9.00621118012422
2006-10-01	9.65309200603318
2007-01-01	9.85074626865672
2007-04-01	9.38833570412518
2007-07-01	9.23913043478261
2007-10-01	7.80234070221066
2008-01-01	9.94962216624685
2008-04-01	8.21917808219178
2008-07-01	7.72626931567329
2008-10-01	8.05369127516779
2009-01-01	9.12124582869855
2009-04-01	9.00809716599190
2009-07-01	9.50980392156863
2009-10-01	11.96410767696910
2010-01-01	11.56716417910450
2010-04-01	11.50131694468830
2010-07-01	10.14873140857390
2010-10-01	10.92657342657340
2011-01-01	9.18281381634372
2011-04-01	8.53462157809984
2011-07-01	8.70240870240870
2011-10-01	9.74124809741248
2012-01-01	10.83991385498920
2012-04-01	11.54653603918820
2012-07-01	12.01388888888890
2012-10-01	11.85389386629910
2013-01-01	11.03853690398430
2013-04-01	12.29668184775540
2013-07-01	11.45833333333330
2013-10-01	11.76096630642090
2014-01-01	12.93213828425100
2014-04-01	12.16300940438870
2014-07-01	10.32806804374240
2014-10-01	11.41848145968220
2015-01-01	12.68011527377520
2015-04-01	9.26352128883774
2015-07-01	9.19282511210762
2015-10-01	11.35991261605680
2016-01-01	11.03641456582630
2016-04-01	11.44545943041380
2016-07-01	8.37780149413020
2016-10-01	7.95395081109367
2017-01-01	5.97243491577335
2017-04-01	6.81372549019608
2017-07-01	6.24692572552878
2017-10-01	6.65071770334928
2018-01-01	6.39563708477938
2018-04-01	6.15615615615616