Quarter	Percent, Seasonally Adjusted
1999-04-01	9.25886831992660
1999-07-01	8.25541461194718
1999-10-01	8.07632098757309
2000-01-01	7.28652419140472
2000-04-01	6.72059142327126
2000-07-01	6.77292513795427
2000-10-01	6.49998220134956
2001-01-01	6.56260095188964
2001-04-01	7.06164557251269
2001-07-01	8.01195493557032
2001-10-01	8.16407868296737
2002-01-01	9.03561558028557
2002-04-01	9.33846790307134
2002-07-01	8.95748730624102
2002-10-01	9.47109649714534
2003-01-01	10.16444419312850
2003-04-01	9.49974444606379
2003-07-01	9.94704874063041
2003-10-01	9.62035654930637
2004-01-01	9.00863380007399
2004-04-01	9.26511308631663
2004-07-01	9.50357815969242
2004-10-01	9.38561133193109
2005-01-01	8.85674107801077
2005-04-01	9.27300048973322
2005-07-01	8.95476461488206
2005-10-01	9.24333115479278
2006-01-01	9.12373858420436
2006-04-01	8.74112326389439
2006-07-01	10.39468486660870
2006-10-01	7.73903586780568
2007-01-01	9.78338192737794
2007-04-01	10.70681545215290
2007-07-01	10.15899737886680
2007-10-01	10.33554892120560
2008-01-01	12.43686426362530
2008-04-01	14.57428925745940
2008-07-01	17.61136318801360
2008-10-01	21.76299052318630
2009-01-01	26.47999267631650
2009-04-01	31.66135040892230
2009-07-01	33.34122713639420
2009-10-01	35.25345243454780
2010-01-01	34.88606213018800
2010-04-01	34.39722845803150
2010-07-01	34.29248037512980
2010-10-01	35.49326360040340
2011-01-01	35.65628591089050
2011-04-01	35.69731798748390
2011-07-01	36.81952953547800
2011-10-01	36.32364487651600
2012-01-01	38.59123289769190
2012-04-01	38.50708127725350
2012-07-01	37.33497578375920
2012-10-01	35.36829136517550
2013-01-01	32.08602115778060
2013-04-01	31.63900135471190
2013-07-01	29.97707431402300
2013-10-01	27.65310294064540
2014-01-01	28.49368129836410
2014-04-01	26.75544161328340
2014-07-01	25.81678268953220
2014-10-01	25.26319941017510
2015-01-01	25.70836150397270
2015-04-01	23.11995009905950
2015-07-01	22.74017883854020
2015-10-01	22.57035948495180
2016-01-01	21.46275076966930
2016-04-01	19.65795836047290
2016-07-01	19.38095957885360
2016-10-01	18.25271250951180
2017-01-01	16.02405349250240
2017-04-01	17.08533200678010
2017-07-01	15.88989999873880
2017-10-01	15.15544037774060
2018-01-01	15.10224804068520
2018-04-01	14.89350382101240