Quarter	Percent, Seasonally Adjusted
1998-01-01	70.2671571142266
1998-04-01	70.2511393782208
1998-07-01	69.8172255339752
1998-10-01	69.9888278158966
1999-01-01	69.8003702478500
1999-04-01	69.9351568229651
1999-07-01	69.9017671645500
1999-10-01	69.9998353158544
2000-01-01	70.0498578279444
2000-04-01	69.7719716781571
2000-07-01	70.2407534704676
2000-10-01	70.2974227584237
2001-01-01	70.3182938478551
2001-04-01	70.2544888482576
2001-07-01	70.5281249989409
2001-10-01	70.4639493591950
2002-01-01	70.7153360817443
2002-04-01	70.7973476859263
2002-07-01	70.7331636699446
2002-10-01	70.2207305515415
2003-01-01	70.0902128841576
2003-04-01	69.9965271763390
2003-07-01	70.2388861360183
2003-10-01	70.0418664835444
2004-01-01	69.6457903765524
2004-04-01	69.5363932291833
2004-07-01	69.3453153328392
2004-10-01	69.2382498446397
2005-01-01	69.0419332054002
2005-04-01	69.1296075850574
2005-07-01	69.1029756586265
2005-10-01	69.2032085746984
2006-01-01	69.2493337597664
2006-04-01	69.4544615216959
2006-07-01	69.3090530932236
2006-10-01	69.1696890903214
2007-01-01	69.2745629484430
2007-04-01	68.9788115665480
2007-07-01	69.3357032194985
2007-10-01	68.9905104051211
2008-01-01	69.1671146874915
2008-04-01	69.0940372853733
2008-07-01	68.7694573085406
2008-10-01	68.6727399191329
2009-01-01	68.0729914229623
2009-04-01	68.0216634141086
2009-07-01	67.3257283776329
2009-10-01	67.4228518085074
2010-01-01	67.6374566419637
2010-04-01	67.0478137503332
2010-07-01	67.0534287638143
2010-10-01	67.1475405397941
2011-01-01	67.3554721843400
2011-04-01	67.2245475938690
2011-07-01	67.2610435434927
2011-10-01	66.5467523992009
2012-01-01	66.2030715873212
2012-04-01	66.5824629256770
2012-07-01	66.7187346083822
2012-10-01	65.6905280001446
2013-01-01	65.2547905388776
2013-04-01	65.1158356250702
2013-07-01	65.1870352468122
2013-10-01	64.9251652436366
2014-01-01	64.3924125072277
2014-04-01	64.8204993663484
2014-07-01	64.7162648559280
2014-10-01	64.1360281660407
2015-01-01	63.9247952992746
2015-04-01	64.0184753016456
2015-07-01	63.9638062124286
2015-10-01	64.5512901896166
2016-01-01	63.5965289778303
2016-04-01	64.0150403000793
2016-07-01	64.6412362602860
2016-10-01	64.1475403014548
2017-01-01	64.1382400685679
2017-04-01	64.5857473102467
2017-07-01	64.7645780693239
2017-10-01	64.6691706036276
2018-01-01	64.4719088631605
2018-04-01	64.2669589397544