Quarter	Percent, Seasonally Adjusted
1999-01-01	40.2974599400760
1999-04-01	40.4552515918428
1999-07-01	40.2241377668612
1999-10-01	40.1152910319460
2000-01-01	39.9265322251740
2000-04-01	40.0373489625031
2000-07-01	39.9939821772856
2000-10-01	39.8510569727330
2001-01-01	39.5416510426227
2001-04-01	39.3281893423646
2001-07-01	39.3923049243485
2001-10-01	39.6048146909476
2002-01-01	39.9010383234718
2002-04-01	40.0656960079663
2002-07-01	39.9821449543234
2002-10-01	39.8671244366048
2003-01-01	39.9033364000511
2003-04-01	39.7567825923070
2003-07-01	39.6648193325045
2003-10-01	39.7340559968626
2004-01-01	39.7931838156357
2004-04-01	39.6851163504901
2004-07-01	39.9363476264182
2004-10-01	40.1403535022546
2005-01-01	40.2598442760398
2005-04-01	40.5572742848934
2005-07-01	40.7681808666009
2005-10-01	40.4554035610370
2006-01-01	40.7957188251435
2006-04-01	40.7321338522404
2006-07-01	40.8351523792460
2006-10-01	41.0583204769047
2007-01-01	41.2019179569025
2007-04-01	41.1961681592866
2007-07-01	41.1990642009556
2007-10-01	41.0076931502211
2008-01-01	40.7936027984062
2008-04-01	40.6435124772152
2008-07-01	40.5153345344427
2008-10-01	40.8299448478080
2009-01-01	41.1549388666644
2009-04-01	41.2350343762944
2009-07-01	41.0738743508993
2009-10-01	41.0471781257900
2010-01-01	40.9839628373914
2010-04-01	41.0320535243418
2010-07-01	40.9971528085829
2010-10-01	41.0059905340612
2011-01-01	41.3408480636289
2011-04-01	41.2247750438457
2011-07-01	41.2642033904509
2011-10-01	41.0993196809252
2012-01-01	40.7910977001144
2012-04-01	40.6900686809500
2012-07-01	40.7074585519675
2012-10-01	40.9724269701395
2013-01-01	40.4908943091669
2013-04-01	40.7211471003765
2013-07-01	40.8040405837820
2013-10-01	40.8455913116354
2014-01-01	40.7004030790365
2014-04-01	40.7191405703072
2014-07-01	40.6646018306587
2014-10-01	40.5058118000052
2015-01-01	40.4015145595614
2015-04-01	40.5214665961454
2015-07-01	40.3505189544779
2015-10-01	40.1492053602043
2016-01-01	40.1120523102508
2016-04-01	39.8355027934565
2016-07-01	39.9047555600569
2016-10-01	39.9401170132690
2017-01-01	39.9742383746144
2017-04-01	40.0068102654882
2017-07-01	39.9983222079009
2017-10-01	40.2334466962681
2018-01-01	40.3298341391442
2018-04-01	40.2849588196842