Quarter	Percent, Seasonally Adjusted
1998-01-01	11.51009559096510
1998-04-01	11.37624104147340
1998-07-01	11.44095651475530
1998-10-01	11.43925666284130
1999-01-01	11.81601609324370
1999-04-01	12.41189405739010
1999-07-01	12.38074656410120
1999-10-01	12.68202740125230
2000-01-01	11.95345642580110
2000-04-01	11.79694447926060
2000-07-01	11.54250804028550
2000-10-01	10.96709521572190
2001-01-01	10.88104965822640
2001-04-01	10.97753963293550
2001-07-01	10.80302321745180
2001-10-01	11.22911135219440
2002-01-01	10.98831120376510
2002-04-01	10.47333805329730
2002-07-01	10.43081936353790
2002-10-01	10.22970064223710
2003-01-01	10.03343031425340
2003-04-01	9.88219405306067
2003-07-01	9.90634254483801
2003-10-01	10.04662271483180
2004-01-01	10.97905031482460
2004-04-01	10.77320720227830
2004-07-01	10.73988438330650
2004-10-01	10.51127031869280
2005-01-01	10.10586183119220
2005-04-01	10.18947270376840
2005-07-01	10.37711782912530
2005-10-01	9.89592274456048
2006-01-01	9.41040671085284
2006-04-01	9.27607683478894
2006-07-01	8.97113757793713
2006-10-01	8.93691583357884
2007-01-01	8.81624321173079
2007-04-01	8.59739849960528
2007-07-01	8.49900602085033
2007-10-01	8.20068098312289
2008-01-01	7.98028062610346
2008-04-01	7.69508210839469
2008-07-01	7.78796720065395
2008-10-01	8.07408035733452
2009-01-01	9.06239175743004
2009-04-01	9.44052231050888
2009-07-01	10.03486113581800
2009-10-01	10.54359307513920
2010-01-01	11.45280580489190
2010-04-01	12.44889238570820
2010-07-01	13.25990703870240
2010-10-01	14.48434899985910
2011-01-01	15.65368429404230
2011-04-01	17.05743463689610
2011-07-01	18.73896517966880
2011-10-01	21.00391103036400
2012-01-01	22.29547767084150
2012-04-01	24.37235399050160
2012-07-01	25.81426085470570
2012-10-01	26.30614173847070
2013-01-01	26.95571085868900
2013-04-01	27.89291158722950
2013-07-01	28.13574132201330
2013-10-01	27.79550350554010
2014-01-01	27.05888460771210
2014-04-01	27.20023126390720
2014-07-01	26.49901722005020
2014-10-01	26.04177584478310
2015-01-01	25.88081523351980
2015-04-01	25.23417653691880
2015-07-01	25.00674127970290
2015-10-01	24.34515688706480
2016-01-01	24.10020548188370
2016-04-01	23.79260308520130
2016-07-01	23.57055193144370
2016-10-01	23.35126209128360
2017-01-01	22.54928261317510
2017-04-01	21.86089835776470
2017-07-01	21.17393328763860
2017-10-01	21.02349788284680
2018-01-01	20.38116540187630
2018-04-01	19.70220648566920