Quarter	Percent, Seasonally Adjusted
1998-01-01	69.6862782571644
1998-04-01	69.7111224461805
1998-07-01	69.8322605309208
1998-10-01	69.6876588112482
1999-01-01	69.6386372532616
1999-04-01	69.2854112300837
1999-07-01	69.1170238885208
1999-10-01	69.1757825359238
2000-01-01	69.0109119493194
2000-04-01	69.1446678847931
2000-07-01	69.0518486467978
2000-10-01	68.8853945714529
2001-01-01	68.3754222579169
2001-04-01	68.4167043088433
2001-07-01	68.4523614433434
2001-10-01	68.4984425176987
2002-01-01	68.2825410477516
2002-04-01	68.6180022043427
2002-07-01	68.7452287375019
2002-10-01	68.9673703349152
2003-01-01	69.2242279224646
2003-04-01	69.0700225509152
2003-07-01	69.1042412964593
2003-10-01	69.1232207500523
2004-01-01	69.3558086934669
2004-04-01	69.4937456270934
2004-07-01	69.3267171225356
2004-10-01	69.4237473917311
2005-01-01	69.4829188096744
2005-04-01	69.5697140087821
2005-07-01	69.6024912414905
2005-10-01	69.7635450218906
2006-01-01	69.9835414203033
2006-04-01	69.8645975341993
2006-07-01	69.8567903626832
2006-10-01	69.9657188762334
2007-01-01	69.8308441279824
2007-04-01	69.7754686948340
2007-07-01	70.0894305146198
2007-10-01	70.1207615350978
2008-01-01	70.1935909108498
2008-04-01	70.2541647169083
2008-07-01	70.1558683885021
2008-10-01	70.1135796015426
2009-01-01	70.1629955847326
2009-04-01	70.2508839584577
2009-07-01	70.4559477782776
2009-10-01	70.3137654717594
2010-01-01	70.4109348948735
2010-04-01	70.1172385685446
2010-07-01	69.8825732516016
2010-10-01	69.7836125195029
2011-01-01	69.3131400600743
2011-04-01	69.0167931876898
2011-07-01	68.5935627621462
2011-10-01	68.2947945186085
2012-01-01	68.2489527354170
2012-04-01	68.1400040141104
2012-07-01	67.9613179189690
2012-10-01	68.2530247782566
2013-01-01	68.0294699625992
2013-04-01	68.2008510744894
2013-07-01	68.0340029355709
2013-10-01	67.8355772075826
2014-01-01	67.7557395162192
2014-04-01	67.3459243523883
2014-07-01	67.1575050053674
2014-10-01	66.8247584085670
2015-01-01	66.7820364221281
2015-04-01	66.8516039160861
2015-07-01	67.1249006717398
2015-10-01	67.3658160277699
2016-01-01	67.2036702692398
2016-04-01	67.2295640009767
2016-07-01	67.2733368507934
2016-10-01	67.1940844960698
2017-01-01	67.3282681901149
2017-04-01	67.4306080092327
2017-07-01	67.5582129415515
2017-10-01	67.3924855069810
2018-01-01	67.3828937342034
2018-04-01	67.5033381451154