Quarter	Percent, Seasonally Adjusted
1998-01-01	24.9455465171660
1998-04-01	24.7771976020053
1998-07-01	25.3719470502692
1998-10-01	24.7061697939642
1999-01-01	24.7360970977472
1999-04-01	24.2969352782958
1999-07-01	24.2258102236424
1999-10-01	23.9090216505503
2000-01-01	23.0439485635531
2000-04-01	22.9523098691108
2000-07-01	22.1134656438167
2000-10-01	22.3620797698223
2001-01-01	21.3295913938120
2001-04-01	21.9836837958618
2001-07-01	22.1865955372198
2001-10-01	21.9103026424045
2002-01-01	22.3333711926201
2002-04-01	21.6760211115278
2002-07-01	21.2339471206237
2002-10-01	21.4119322290630
2003-01-01	20.6637572682128
2003-04-01	20.1345326844157
2003-07-01	20.4517624098805
2003-10-01	20.2163010341142
2004-01-01	19.9688258162234
2004-04-01	19.5768930077824
2004-07-01	19.4954982886962
2004-10-01	18.8352747931574
2005-01-01	18.7370590226760
2005-04-01	18.4958002760010
2005-07-01	18.2266501871334
2005-10-01	17.7960070726787
2006-01-01	17.6077353114474
2006-04-01	17.2808720810221
2006-07-01	17.3190655836389
2006-10-01	17.2645740334331
2007-01-01	17.3137443965627
2007-04-01	17.3684356163070
2007-07-01	17.1886987167499
2007-10-01	17.2007509349990
2008-01-01	17.2282223914059
2008-04-01	16.7199584983913
2008-07-01	17.1768117934091
2008-10-01	17.2527984290075
2009-01-01	16.8993333169187
2009-04-01	16.8860481486625
2009-07-01	16.8926981439904
2009-10-01	16.2214944974321
2010-01-01	15.3434366816385
2010-04-01	15.0361719270714
2010-07-01	14.8738755637578
2010-10-01	15.3273943531630
2011-01-01	15.4331884624905
2011-04-01	14.6653519950088
2011-07-01	16.1417169009311
2011-10-01	15.7748597361867
2012-01-01	14.9904544582760
2012-04-01	14.7275476170952
2012-07-01	15.1422840739023
2012-10-01	15.0273602809120
2013-01-01	14.8010290140017
2013-04-01	14.6552336025828
2013-07-01	14.6503211638105
2013-10-01	13.7014177105672
2014-01-01	14.2281751489466
2014-04-01	13.8015930862481
2014-07-01	14.3957512395162
2014-10-01	14.2588657162112
2015-01-01	14.0514963985680
2015-04-01	13.5888153071547
2015-07-01	14.3123863169293
2015-10-01	13.8714182478630
2016-01-01	13.5357028749161
2016-04-01	13.8497220110758
2016-07-01	13.0388811007865
2016-10-01	13.2568162530771
2017-01-01	13.0512658776693
2017-04-01	13.1014836434950
2017-07-01	12.8440081483041
2017-10-01	12.8220625773127
2018-01-01	12.7402043736964
2018-04-01	12.4187430988177