Quarter	Percent, Seasonally Adjusted
2002-01-01	20.47611363867960
2002-04-01	21.55360579329260
2002-07-01	19.26297236570110
2002-10-01	20.05374650836320
2003-01-01	19.65948332897790
2003-04-01	19.87949785776560
2003-07-01	18.96563931827750
2003-10-01	19.95601865349310
2004-01-01	19.01256860535670
2004-04-01	21.64525155024570
2004-07-01	18.36146181834010
2004-10-01	20.93328645590360
2005-01-01	15.58376880115450
2005-04-01	17.58691033188500
2005-07-01	12.09949901666970
2005-10-01	15.16276224668170
2006-01-01	13.41247374936600
2006-04-01	15.99781204556360
2006-07-01	11.86466135178570
2006-10-01	14.10676507227780
2007-01-01	11.27653412673570
2007-04-01	11.08703715292260
2007-07-01	10.60211619459190
2007-10-01	9.32778603494179
2008-01-01	9.61205834872646
2008-04-01	10.81236707391950
2008-07-01	11.46231411999780
2008-10-01	23.49991965877660
2009-01-01	27.68206718232430
2009-04-01	31.31418653350740
2009-07-01	35.11613203691490
2009-10-01	39.40232436641740
2010-01-01	39.41665655889090
2010-04-01	37.07711596887840
2010-07-01	33.68850121623320
2010-10-01	34.15739930079950
2011-01-01	31.62274974414830
2011-04-01	32.86477093228880
2011-07-01	29.19585972611630
2011-10-01	30.18190550709790
2012-01-01	30.44178957291260
2012-04-01	30.54338341165890
2012-07-01	29.07389559576110
2012-10-01	24.05451430360730
2013-01-01	25.25853021673950
2013-04-01	21.73797417803550
2013-07-01	24.06174934725770
2013-10-01	21.90486964977810
2014-01-01	20.64478959695880
2014-04-01	21.19862655048410
2014-07-01	19.18540072752100
2014-10-01	17.42262374339490
2015-01-01	16.22305648125840
2015-04-01	15.42745186915930
2015-07-01	16.22082406824420
2015-10-01	17.44023503010000
2016-01-01	16.73509587231900
2016-04-01	17.68664531379870
2016-07-01	18.55387145626580
2016-10-01	16.31971259449650
2017-01-01	18.58116562487340
2017-04-01	16.12832394786290
2017-07-01	17.62783960173960
2017-10-01	15.66839094112900
2018-01-01	15.93404924993520
2018-04-01	12.38736444819830