Quarter	Percent, Seasonally Adjusted
1999-01-01	49.2273710324571
1999-04-01	49.7074382021376
1999-07-01	49.2310048782896
1999-10-01	49.5161059507940
2000-01-01	49.4207666116533
2000-04-01	49.5195746682579
2000-07-01	50.7037548161605
2000-10-01	50.6995611937548
2001-01-01	51.1161373074580
2001-04-01	51.0890784468658
2001-07-01	51.7884456903318
2001-10-01	50.9322582663824
2002-01-01	51.9277373431891
2002-04-01	51.1619511975697
2002-07-01	49.7571848629449
2002-10-01	49.7706490879351
2003-01-01	49.8393920736235
2003-04-01	50.0269450992486
2003-07-01	49.5566142462420
2003-10-01	51.3382376455284
2004-01-01	52.0007866992439
2004-04-01	52.3569072516717
2004-07-01	53.0872243964206
2004-10-01	52.7839400999866
2005-01-01	52.7745706345601
2005-04-01	52.4550223859425
2005-07-01	52.5420490262339
2005-10-01	52.9472987683409
2006-01-01	53.3415147939028
2006-04-01	53.0660507356051
2006-07-01	53.3485072191049
2006-10-01	53.1647632395735
2007-01-01	53.9353140306802
2007-04-01	54.8525619900248
2007-07-01	54.7132195828481
2007-10-01	54.2870173220404
2008-01-01	53.8968590951663
2008-04-01	53.8653136507208
2008-07-01	54.4459714537044
2008-10-01	53.5705171077794
2009-01-01	52.3320745350312
2009-04-01	52.8270596896353
2009-07-01	52.7428600204389
2009-10-01	52.6933729621304
2010-01-01	52.4813505099944
2010-04-01	51.3805653765856
2010-07-01	51.2252866915206
2010-10-01	51.3115550669850
2011-01-01	50.5156519505480
2011-04-01	50.0155846255099
2011-07-01	49.5360840003253
2011-10-01	49.3915407260687
2012-01-01	49.6302068415805
2012-04-01	49.0816920868277
2012-07-01	48.7080807362868
2012-10-01	49.1391742745900
2013-01-01	48.4471418408523
2013-04-01	48.2532679302474
2013-07-01	48.7037795040471
2013-10-01	48.6704761063157
2014-01-01	48.5572458027121
2014-04-01	49.2641894897750
2014-07-01	48.7244373362912
2014-10-01	48.9982139977850
2015-01-01	49.1444248526918
2015-04-01	49.0901216954310
2015-07-01	49.3464670043390