Quarter	Percent, Seasonally Adjusted
1998-01-01	35.4428439400307
1998-04-01	35.6033897347192
1998-07-01	35.6056735413426
1998-10-01	35.3916276837693
1999-01-01	35.4369874919895
1999-04-01	35.4847675451051
1999-07-01	35.4690288788264
1999-10-01	35.3945642984139
2000-01-01	35.5794213436010
2000-04-01	35.8301385482370
2000-07-01	36.0235055478962
2000-10-01	36.2045695010258
2001-01-01	35.9785277052335
2001-04-01	36.2823560178917
2001-07-01	36.3308129734009
2001-10-01	36.4481229006171
2002-01-01	36.4821465443852
2002-04-01	36.2729329776079
2002-07-01	36.1336075675657
2002-10-01	36.1410918904276
2003-01-01	36.3555273713123
2003-04-01	36.3935304400333
2003-07-01	36.6771144223190
2003-10-01	36.8016660797026
2004-01-01	36.7186566206732
2004-04-01	36.7197631635931
2004-07-01	36.7534095682949
2004-10-01	36.6165499819958
2005-01-01	36.4414203805373
2005-04-01	36.2361893142037
2005-07-01	36.0408843400767
2005-10-01	36.0764866943207
2006-01-01	36.0198308626271
2006-04-01	36.2024536278060
2006-07-01	36.3524698399047
2006-10-01	36.5115951001484
2007-01-01	36.5482200498198
2007-04-01	36.5751829312117
2007-07-01	36.6212604640867
2007-10-01	36.6460716722222
2008-01-01	36.7778360037870
2008-04-01	36.7834145599938
2008-07-01	37.0369224237988
2008-10-01	36.8804810733214
2009-01-01	36.7299700462304
2009-04-01	36.7009614831400
2009-07-01	36.5623476860563
2009-10-01	36.6662834968766
2010-01-01	36.9499046441091
2010-04-01	36.9864012601511
2010-07-01	36.8154095951234
2010-10-01	36.8783392246609
2011-01-01	36.8855446643830
2011-04-01	36.7552607542434
2011-07-01	36.9664193634265
2011-10-01	37.1432608873990
2012-01-01	36.9795328487381
2012-04-01	36.6280178028965
2012-07-01	36.3351686320222
2012-10-01	36.0617886592382
2013-01-01	35.9084884540109
2013-04-01	35.5838694767908
2013-07-01	35.6114498457624
2013-10-01	35.6008582835311
2014-01-01	35.6397707465051
2014-04-01	35.7711067344158
2014-07-01	35.7035773792143
2014-10-01	35.3934729670356
2015-01-01	35.3564819580204
2015-04-01	35.4502366893483
2015-07-01	35.4134619629789
2015-10-01	35.3506325694326
2016-01-01	34.9421322848194
2016-04-01	34.7436313051796
2016-07-01	34.6644779637392
2016-10-01	34.4123455812488
2017-01-01	34.4407101890665
2017-04-01	34.4913539235061
2017-07-01	34.0378488068613
2017-10-01	34.0604190709420
2018-01-01	33.8774251584740
2018-04-01	33.5742397942465