Quarter	Percent, Seasonally Adjusted
1998-01-01	13.9294143984402
1998-04-01	14.1417524564265
1998-07-01	14.3211769525053
1998-10-01	14.5539883431376
1999-01-01	14.9544804634616
1999-04-01	15.7211958696715
1999-07-01	15.8114363547667
1999-10-01	16.0571276283378
2000-01-01	15.6888918080833
2000-04-01	15.2991377689852
2000-07-01	15.0600600971372
2000-10-01	14.3475837430384
2001-01-01	14.3437148413810
2001-04-01	14.3987843924912
2001-07-01	14.2435176647457
2001-10-01	14.8123982656513
2002-01-01	14.3104766117798
2002-04-01	14.1288256443641
2002-07-01	14.0732216173535
2002-10-01	13.7994432238058
2003-01-01	13.5715038026989
2003-04-01	13.3234147851945
2003-07-01	13.5195591067834
2003-10-01	13.9179935796744
2004-01-01	14.7461864645487
2004-04-01	14.8036544829084
2004-07-01	15.0214711793803
2004-10-01	14.7216449488257
2005-01-01	14.4800802226558
2005-04-01	14.6163714306394
2005-07-01	14.4960717663557
2005-10-01	13.7712805710041
2006-01-01	12.8446116020557
2006-04-01	12.6870248746089
2006-07-01	12.3014353013224
2006-10-01	12.2751836409809
2007-01-01	12.5278205002577
2007-04-01	12.1965372224839
2007-07-01	11.7925326192662
2007-10-01	11.5699058915530
2008-01-01	11.0766682199974
2008-04-01	10.7414926637306
2008-07-01	10.6859775207785
2008-10-01	11.0377015735031
2009-01-01	11.6775374726273
2009-04-01	12.0886395907928
2009-07-01	12.7462100965452
2009-10-01	13.1288368869765
2010-01-01	14.1613955778567
2010-04-01	14.8846708765458
2010-07-01	15.8333296447658
2010-10-01	17.2058897706083
2011-01-01	18.2123534657463
2011-04-01	19.5791991197126
2011-07-01	21.2331086791910
2011-10-01	23.5419670816564
2012-01-01	24.8853320682934
2012-04-01	26.7099404651734
2012-07-01	28.2264661592103
2012-10-01	28.7747616052747
2013-01-01	29.6148907772993
2013-04-01	30.9999764943870
2013-07-01	31.5395501420267
2013-10-01	31.2704179333614
2014-01-01	30.0664780995054
2014-04-01	30.3177800071417
2014-07-01	29.5068362818753
2014-10-01	29.1679841747380
2015-01-01	29.3876112869705
2015-04-01	28.7332743413249
2015-07-01	28.6189194503327
2015-10-01	28.0277101629289
2016-01-01	28.4608439707257
2016-04-01	28.0913237436419
2016-07-01	27.9917884280708
2016-10-01	27.6752276151794
2017-01-01	26.4512327162512
2017-04-01	25.7616197529490
2017-07-01	25.2010823168044
2017-10-01	25.1087520066801
2018-01-01	24.8124452108377
2018-04-01	24.3059886570426