Quarter	Percent, Seasonally Adjusted
1998-01-01	31.1319945848771
1998-04-01	29.5925694720252
1998-07-01	30.5880857579698
1998-10-01	30.7986464149707
1999-01-01	31.3229426242064
1999-04-01	31.5316755326160
1999-07-01	31.3872590687769
1999-10-01	32.2427476643683
2000-01-01	30.4055866937072
2000-04-01	29.2549742207308
2000-07-01	29.1185011386951
2000-10-01	28.0817751746997
2001-01-01	28.7190522494354
2001-04-01	28.2086701245168
2001-07-01	27.2384855352789
2001-10-01	27.9976825095178
2002-01-01	28.0561787051852
2002-04-01	26.3356739975846
2002-07-01	25.9769843042431
2002-10-01	25.8890929682891
2003-01-01	26.4392695814643
2003-04-01	26.0895691087254
2003-07-01	26.7491669777905
2003-10-01	27.2940306418134
2004-01-01	28.0621105463751
2004-04-01	26.7392972484317
2004-07-01	25.3982661806098
2004-10-01	25.8209102483276
2005-01-01	25.1818001869561
2005-04-01	25.5968769969144
2005-07-01	26.2131617767796
2005-10-01	26.1676055252184
2006-01-01	25.0098697745205
2006-04-01	25.0596135459917
2006-07-01	24.4627923263507
2006-10-01	25.3460142266871
2007-01-01	23.9747300691915
2007-04-01	22.4456165805052
2007-07-01	22.5538920450707
2007-10-01	21.7164748482157
2008-01-01	22.1878384970254
2008-04-01	21.1297818388541
2008-07-01	21.7885733968552
2008-10-01	22.3657420407164
2009-01-01	24.4591726828512
2009-04-01	24.8456770832583
2009-07-01	25.6576735450111
2009-10-01	27.8749321741387
2010-01-01	29.8545896062852
2010-04-01	31.5038231895057
2010-07-01	33.7148700532201
2010-10-01	36.9101347941742
2011-01-01	39.5697890435775
2011-04-01	43.4090981281705
2011-07-01	46.1003688516465
2011-10-01	49.7772257315482
2012-01-01	52.0877748908497
2012-04-01	54.1075995707475
2012-07-01	57.3231935964005
2012-10-01	57.7880150227966
2013-01-01	59.1709189497665
2013-04-01	59.2845362706619
2013-07-01	58.1418884372633
2013-10-01	56.4643932834547
2014-01-01	55.5313073004480
2014-04-01	52.2914132162387
2014-07-01	50.8184465781953
2014-10-01	50.9715426710378
2015-01-01	50.1631376715274
2015-04-01	49.4061508586395
2015-07-01	50.5131506981380
2015-10-01	49.1815233113010
2016-01-01	49.0855725104240
2016-04-01	48.7751810132858
2016-07-01	45.9699555655556
2016-10-01	45.4025729434447
2017-01-01	45.3505533611226
2017-04-01	43.9691292451479
2017-07-01	41.8101237750774
2017-10-01	43.1021834544606
2018-01-01	42.4187887602307
2018-04-01	39.1543605087211