Quarter	Percent, Seasonally Adjusted
1998-01-01	76.2257840361474
1998-04-01	75.9398053533182
1998-07-01	76.4987360367126
1998-10-01	75.5609869545778
1999-01-01	75.7427255621821
1999-04-01	75.3756670357358
1999-07-01	75.8613726133780
1999-10-01	75.3041923570122
2000-01-01	75.7836316582449
2000-04-01	76.8690039312462
2000-07-01	76.4055089280472
2000-10-01	76.3284879373256
2001-01-01	76.1710872302266
2001-04-01	76.0237918017152
2001-07-01	75.0036941003142
2001-10-01	74.6112768204114
2002-01-01	73.7029856230819
2002-04-01	73.0624548203783
2002-07-01	72.4408523359872
2002-10-01	71.9668481687754
2003-01-01	71.2610835146146
2003-04-01	69.7343173070161
2003-07-01	69.2550652401972
2003-10-01	69.8585636859850
2004-01-01	68.7495051411763
2004-04-01	68.6513205464828
2004-07-01	68.6370989809643
2004-10-01	68.6186133636129
2005-01-01	67.8950413512190
2005-04-01	67.4855675699252
2005-07-01	66.2945361651447
2005-10-01	66.5666317121249
2006-01-01	65.9898956281036
2006-04-01	65.7615821860554
2006-07-01	65.8938097917259
2006-10-01	66.3480623586075
2007-01-01	65.4442575007173
2007-04-01	64.6537320303172
2007-07-01	64.7061190411421
2007-10-01	64.3870093672940
2008-01-01	64.2634482731312
2008-04-01	63.6810793022702
2008-07-01	64.3873818661583
2008-10-01	63.3517028778175
2009-01-01	62.8088594477330
2009-04-01	62.6249397377535
2009-07-01	62.6227636989888
2009-10-01	63.2699786011399
2010-01-01	62.3653329061490
2010-04-01	62.2524179880108
2010-07-01	62.5177542131874
2010-10-01	61.0631711574989
2011-01-01	60.5155994517437
2011-04-01	60.7850303775824
2011-07-01	60.5962307501376
2011-10-01	60.4900784819751
2012-01-01	60.3015395630148
2012-04-01	58.8616705785618
2012-07-01	58.0017604681125
2012-10-01	56.7330192488147
2013-01-01	56.7102204438788
2013-04-01	56.3023390090573
2013-07-01	55.4940837578504
2013-10-01	54.5800661637255
2014-01-01	54.2601073419550
2014-04-01	54.3258744336709
2014-07-01	53.0442573273179
2014-10-01	52.9658790112158
2015-01-01	52.4093532076414
2015-04-01	51.5572218696793
2015-07-01	51.3367711768052
2015-10-01	51.6425823627456
2016-01-01	50.3607737362167
2016-04-01	49.1953954945141
2016-07-01	48.5953629066683
2016-10-01	46.8972421608349
2017-01-01	45.8812448742481
2017-04-01	46.4443423424646
2017-07-01	45.1129001691479
2017-10-01	44.4247611627460
2018-01-01	42.9103321946848
2018-04-01	42.2565655847288