Quarter	Percent, Seasonally Adjusted
1998-01-01	38.6863795735064
1998-04-01	39.0734349778098
1998-07-01	39.1033665246213
1998-10-01	39.1578222322714
1999-01-01	40.3839107832945
1999-04-01	38.6854652203806
1999-07-01	39.0774836197674
1999-10-01	39.1426048782522
2000-01-01	39.2614383364089
2000-04-01	39.4436813150639
2000-07-01	39.1423308438376
2000-10-01	38.0044884167332
2001-01-01	38.8843772667691
2001-04-01	38.3323795576955
2001-07-01	38.2323072808979
2001-10-01	38.2902719901667
2002-01-01	38.5936659161271
2002-04-01	39.3701672791957
2002-07-01	39.9105879821533
2002-10-01	40.5050149294204
2003-01-01	40.7697698804129
2003-04-01	41.4949950581000
2003-07-01	42.0886408583612
2003-10-01	42.7443147986859
2004-01-01	39.1257203602032
2004-04-01	39.8580875896651
2004-07-01	39.9713359365184
2004-10-01	40.5174771723143
2005-01-01	40.9478344394244
2005-04-01	41.9967272718320
2005-07-01	42.4215828941062
2005-10-01	42.5037878201926
2006-01-01	42.3223516754641
2006-04-01	42.6621068516722
2006-07-01	42.7305488703390
2006-10-01	42.4293071604813
2007-01-01	42.3046329792160
2007-04-01	42.3438166583926
2007-07-01	42.8380316938179
2007-10-01	43.1793409743544
2008-01-01	42.9486108991333
2008-04-01	43.0718209495142
2008-07-01	42.9150420687555
2008-10-01	42.9311914672497
2009-01-01	42.2681589653832
2009-04-01	42.3507332435112
2009-07-01	42.5688179223714
2009-10-01	42.2720231516161
2010-01-01	42.6455596525456
2010-04-01	42.2627305558178
2010-07-01	42.4660915914052
2010-10-01	42.0972889745274
2011-01-01	41.1329033059488
2011-04-01	40.6698539570157
2011-07-01	38.5881950821774
2011-10-01	37.5027747136441
2012-01-01	37.1448386846314
2012-04-01	36.3926369328513
2012-07-01	36.0537833774825
2012-10-01	36.2373398283515
2013-01-01	35.5498781608614
2013-04-01	35.8652566629386
2013-07-01	35.7759020252249
2013-10-01	35.0381698669357
2014-01-01	35.0113899043332
2014-04-01	33.9433976483148
2014-07-01	33.7270419839234
2014-10-01	33.4859052311943
2015-01-01	33.2806026173464
2015-04-01	33.9561319452466
2015-07-01	34.6823718895330
2015-10-01	35.3781732057964
2016-01-01	35.7544074567796
2016-04-01	35.6322665547881
2016-07-01	36.8963416004087
2016-10-01	36.7848735988142
2017-01-01	37.6359140009001
2017-04-01	37.9297124976606
2017-07-01	38.5060687788027
2017-10-01	38.9678204319508
2018-01-01	39.8269107182455
2018-04-01	40.8803574249034