Quarter	Percent, Seasonally Adjusted
1999-01-01	84.6468365623268
1999-04-01	85.5794159697365
1999-07-01	87.8021289271141
1999-10-01	87.0418372716685
2000-01-01	87.0743160813382
2000-04-01	85.8518456937700
2000-07-01	85.6304686522126
2000-10-01	84.8279211828352
2001-01-01	83.8512025446559
2001-04-01	85.5916046610762
2001-07-01	82.8991251612523
2001-10-01	82.5721534053501
2002-01-01	83.8464885940424
2002-04-01	85.4106296137151
2002-07-01	86.0140638374064
2002-10-01	87.0438793244380
2003-01-01	84.5265743205254
2003-04-01	85.7632320532738
2003-07-01	86.6947473372953
2003-10-01	83.1775399174536
2004-01-01	82.9522529426263
2004-04-01	81.0166858383849
2004-07-01	80.5341653013577
2004-10-01	83.1562829436076
2005-01-01	82.9806580958958
2005-04-01	80.8593473875701
2005-07-01	80.8910796852697
2005-10-01	79.4805753956461
2006-01-01	78.8883771915367
2006-04-01	78.5371759262437
2006-07-01	78.0932348586064
2006-10-01	78.8385986047243
2007-01-01	77.5903345668512
2007-04-01	76.6249333044604
2007-07-01	76.0339458680301
2007-10-01	77.6019380497813
2008-01-01	78.3262907658808
2008-04-01	78.6543476784614
2008-07-01	77.8045559450031
2008-10-01	76.5864128714796
2009-01-01	76.0662285236284
2009-04-01	75.7391714470746
2009-07-01	72.7610259225814
2009-10-01	73.4858621726485
2010-01-01	74.8574006872985
2010-04-01	74.0444480539631
2010-07-01	75.3206432288537
2010-10-01	73.4664626719643
2011-01-01	77.7041788916137
2011-04-01	77.3543706034986
2011-07-01	74.9636335684467
2011-10-01	75.0444656441094
2012-01-01	74.1300054760348
2012-04-01	73.7148061489198
2012-07-01	73.9269138019149
2012-10-01	72.3813952105129
2013-01-01	73.5673680710166
2013-04-01	72.7155293215735
2013-07-01	72.9336168178170
2013-10-01	72.9085682074328
2014-01-01	70.3438464673778
2014-04-01	68.8037600847721
2014-07-01	67.7979897040605
2014-10-01	68.6744302890275
2015-01-01	68.4668173498873
2015-04-01	67.5709003937723
2015-07-01	65.6108493351190
2015-10-01	66.6804905044245
2016-01-01	63.9292311703288
2016-04-01	65.2204962233980
2016-07-01	66.6958057337197
2016-10-01	63.4090208896958
2017-01-01	61.9362824047950
2017-04-01	60.9430116508157
2017-07-01	60.4592996142762
2017-10-01	58.6030048096916
2018-01-01	57.9489658730778
2018-04-01	55.7210247101176