Quarter	Percent, Seasonally Adjusted
1999-01-01	11.39061868612610
1999-04-01	11.06552858848800
1999-07-01	11.74421249575220
1999-10-01	11.12297088376550
2000-01-01	10.62345889405790
2000-04-01	11.12102677981600
2000-07-01	11.02664873537020
2000-10-01	10.98373768137580
2001-01-01	10.83338925356690
2001-04-01	10.21107424186800
2001-07-01	9.39099087732012
2001-10-01	9.68114053218940
2002-01-01	10.24708486461610
2002-04-01	10.89612739479760
2002-07-01	13.48577047802020
2002-10-01	13.08659223627250
2003-01-01	13.17610525584740
2003-04-01	12.73690408100800
2003-07-01	12.61234137703980
2003-10-01	12.77783012853190
2004-01-01	12.79877095289870
2004-04-01	14.77461884734510
2004-07-01	14.23152210806670
2004-10-01	16.04942472682540
2005-01-01	17.33920973345900
2005-04-01	18.67835529196080
2005-07-01	20.99936214027890
2005-10-01	19.26620549403490
2006-01-01	19.47835637894640
2006-04-01	19.38445195744950
2006-07-01	19.77788487844650
2006-10-01	20.65578861263990
2007-01-01	19.40399339869280
2007-04-01	17.85049768416540
2007-07-01	18.42907228094010
2007-10-01	19.83194437623410
2008-01-01	20.04847698993220
2008-04-01	21.11332328305960
2008-07-01	20.64114760122060
2008-10-01	19.69955191861650
2009-01-01	24.23573377397400
2009-04-01	23.83393931114890
2009-07-01	23.88598751122610
2009-10-01	26.12025609846090
2010-01-01	24.05632899221580
2010-04-01	24.33784340723040
2010-07-01	24.76359937849060
2010-10-01	25.48945759016400
2011-01-01	24.02853536549510
2011-04-01	23.79554764858050
2011-07-01	24.05549527815640
2011-10-01	26.85629880121290
2012-01-01	27.04778119487790
2012-04-01	26.44843861121320
2012-07-01	26.63508796398280
2012-10-01	28.27859810300580
2013-01-01	30.21553898269810
2013-04-01	27.83946951505310
2013-07-01	26.97163666800780
2013-10-01	26.54103552007720
2014-01-01	23.26737607203670
2014-04-01	22.39409065865290
2014-07-01	21.41864999552040
2014-10-01	16.78930463088570
2015-01-01	18.03373577664640
2015-04-01	16.86273538225870
2015-07-01	14.28757228179490
2015-10-01	14.75151631626810
2016-01-01	13.27925535971780
2016-04-01	14.66911893391820
2016-07-01	12.06125833635640
2016-10-01	11.67417467945400
2017-01-01	10.56509089239430
2017-04-01	12.28198067238350
2017-07-01	13.24097414314520
2017-10-01	12.21442170780470
2018-01-01	13.10027197191850
2018-04-01	12.16800457207520