Quarter	Percent, Seasonally Adjusted
1998-01-01	32.1295959955546
1998-04-01	27.4948505851870
1998-07-01	33.2724535271694
1998-10-01	34.7457007892996
1999-01-01	35.9808411994704
1999-04-01	39.7527459158961
1999-07-01	38.5103224802057
1999-10-01	38.5804853386646
2000-01-01	39.2523554292242
2000-04-01	40.3868042742626
2000-07-01	40.4412184861453
2000-10-01	39.6610351568613
2001-01-01	40.5940406962367
2001-04-01	40.8861307926059
2001-07-01	40.4160354825409
2001-10-01	40.9224209205715
2002-01-01	39.3759624933920
2002-04-01	40.3597194053236
2002-07-01	41.0211267780064
2002-10-01	40.3010941715701
2003-01-01	40.9097413225831
2003-04-01	39.9684735587977
2003-07-01	38.6063292514538
2003-10-01	37.2384553095560
2004-01-01	38.3010523503143
2004-04-01	39.0411939847371
2004-07-01	39.9897070742880
2004-10-01	40.4176817940290
2005-01-01	40.5421155812337
2005-04-01	40.4304434177046
2005-07-01	40.1367893828652
2005-10-01	41.2365571148266
2006-01-01	41.4588232176960
2006-04-01	41.3058766345571
2006-07-01	41.6722020249790
2006-10-01	42.0625259713626
2007-01-01	42.3610448382094
2007-04-01	43.7870807859034
2007-07-01	46.3683609588514
2007-10-01	46.2819764157459
2008-01-01	45.0052351038958
2008-04-01	45.5373550119790
2008-07-01	44.5019949996294
2008-10-01	45.2245896363201
2009-01-01	45.2941631200981
2009-04-01	42.3327438166082
2009-07-01	38.4007209516027
2009-10-01	39.8284124810101
2010-01-01	39.4040755065835
2010-04-01	39.4613517397640
2010-07-01	39.8547380226627
2010-10-01	41.0425489688493
2011-01-01	40.2442320292658
2011-04-01	41.5943150097214
2011-07-01	42.3239963949974
2011-10-01	40.7370583930365
2012-01-01	41.3521022845585
2012-04-01	42.8936228006043
2012-07-01	42.8742557542184
2012-10-01	43.5069189522083
2013-01-01	45.3080008478766
2013-04-01	44.3929542740075
2013-07-01	41.3772641419094
2013-10-01	44.4437638307260
2014-01-01	42.5866770351404
2014-04-01	43.8748178550207
2014-07-01	43.4300136891507
2014-10-01	41.9137875831313
2015-01-01	43.4044819414925
2015-04-01	42.7385379031364
2015-07-01	42.5616036115790
2015-10-01	42.5256067419472
2016-01-01	43.3770983737072
2016-04-01	42.1663739649597
2016-07-01	44.1478958036069
2016-10-01	43.3485945996313
2017-01-01	43.3126554236373
2017-04-01	41.9923124780313
2017-07-01	43.9608857316881
2017-10-01	45.4755030128687
2018-01-01	45.4636117070483
2018-04-01	47.7351504989202