Quarter	Percent, Seasonally Adjusted
1998-01-01	49.0680702134238
1998-04-01	47.9462904268403
1998-07-01	46.5008166102735
1998-10-01	45.4347028281206
1999-01-01	43.5756327884116
1999-04-01	42.8539708578156
1999-07-01	41.8458780537090
1999-10-01	40.9491551688846
2000-01-01	40.3986068545308
2000-04-01	39.3490693577398
2000-07-01	39.1721922962310
2000-10-01	38.1091376142728
2001-01-01	37.7575936340186
2001-04-01	37.2902660038553
2001-07-01	36.9497856678309
2001-10-01	36.3442142175691
2002-01-01	35.5180874436824
2002-04-01	35.7786221636015
2002-07-01	35.0357161983916
2002-10-01	34.6513906082879
2003-01-01	33.9830319752924
2003-04-01	32.7648239988646
2003-07-01	31.5327487839962
2003-10-01	31.0391673632425
2004-01-01	30.2992408605325
2004-04-01	29.9369527990580
2004-07-01	30.2128442498046
2004-10-01	30.0625419050575
2005-01-01	30.8348403108761
2005-04-01	31.3554326526100
2005-07-01	31.6013843475292
2005-10-01	31.5697501685559
2006-01-01	31.0392144032692
2006-04-01	31.3206480794460
2006-07-01	31.2981641669604
2006-10-01	32.1493097066444
2007-01-01	32.8427778936178
2007-04-01	32.6722387840052
2007-07-01	32.9887963877423
2007-10-01	32.8413837757807
2008-01-01	32.2166373732353
2008-04-01	32.4522248075808
2008-07-01	32.3911400972221
2008-10-01	32.3748330879762
2009-01-01	32.1121619456902
2009-04-01	31.4343910890063
2009-07-01	30.5849970168899
2009-10-01	30.1031103697217
2010-01-01	29.6375351863780
2010-04-01	29.3850225556094
2010-07-01	29.7650105307715
2010-10-01	29.5619044684045
2011-01-01	29.1916767112576
2011-04-01	29.0252948324161
2011-07-01	28.9937127107742
2011-10-01	28.9023356220480
2012-01-01	29.0785342335758
2012-04-01	29.0554971120319
2012-07-01	29.2991839019908
2012-10-01	29.3303176748000
2013-01-01	29.2969778482369
2013-04-01	29.6790946271715
2013-07-01	30.2344035241069
2013-10-01	30.5147386809279
2014-01-01	31.6905356460586
2014-04-01	32.5146339073252
2014-07-01	32.5932420022872
2014-10-01	32.5511651809567
2015-01-01	32.5967953535692
2015-04-01	32.9649024220789
2015-07-01	32.8382411317877
2015-10-01	34.1466656036080
2016-01-01	33.9455989228389
2016-04-01	33.6031592294622
2016-07-01	33.9577878287727
2016-10-01	33.5407111719548
2017-01-01	34.0412751984477
2017-04-01	34.0852446647792
2017-07-01	33.6965114570312
2017-10-01	33.2792788357350
2018-01-01	32.4333286565446
2018-04-01	31.6747638785088