Quarter	Percent, Seasonally Adjusted
1999-01-01	14.9550391905391
1999-04-01	14.9247819202260
1999-07-01	15.2640200745031
1999-10-01	15.2488023642466
2000-01-01	16.1864851708337
2000-04-01	15.9070839901867
2000-07-01	15.7170292502137
2000-10-01	15.2840804194806
2001-01-01	16.3111245062390
2001-04-01	16.6849584020115
2001-07-01	16.1528401849181
2001-10-01	15.6867080326148
2002-01-01	16.5304607325480
2002-04-01	16.1288578824508
2002-07-01	16.1976134639830
2002-10-01	16.7392278889836
2003-01-01	16.2499747837945
2003-04-01	15.9610613719154
2003-07-01	15.9853081999219
2003-10-01	16.7704570426702
2004-01-01	15.9733396704257
2004-04-01	15.7440656421553
2004-07-01	15.3456553256839
2004-10-01	16.7605330429260
2005-01-01	15.6628190521474
2005-04-01	16.3639229251424
2005-07-01	16.8879186864323
2005-10-01	16.6378003887988
2006-01-01	16.2593338598199
2006-04-01	16.5279871397419
2006-07-01	15.7885823010382
2006-10-01	15.1092476593651
2007-01-01	15.3952237373182
2007-04-01	16.1117143321432
2007-07-01	16.8485655161801
2007-10-01	16.8458319191491
2008-01-01	16.6174072449060
2008-04-01	15.5364975710208
2008-07-01	15.1308397562033
2008-10-01	15.4614123995238
2009-01-01	15.7769127043352
2009-04-01	16.2134923734059
2009-07-01	16.3073276642295
2009-10-01	17.2146691955975
2010-01-01	16.7525472962280
2010-04-01	17.2489299322719
2010-07-01	18.1666303304780
2010-10-01	17.3119593773073
2011-01-01	17.3319277832673
2011-04-01	17.6701925542744
2011-07-01	17.9068570282428
2011-10-01	17.7596936461648
2012-01-01	17.9919758232281
2012-04-01	18.3140224884677
2012-07-01	19.2010082180954
2012-10-01	18.7021676816564
2013-01-01	18.3510706389211
2013-04-01	19.4295907190882
2013-07-01	19.7524186150602
2013-10-01	20.0934152060418
2014-01-01	19.4967373242684
2014-04-01	19.3435177926395
2014-07-01	18.2243120331681
2014-10-01	18.5296136498577
2015-01-01	18.5620235258773
2015-04-01	18.4044347169784
2015-07-01	18.6111703492219
2015-10-01	18.1064990310050
2016-01-01	17.6187817508846
2016-04-01	17.1916514837610
2016-07-01	17.2046965456946
2016-10-01	17.4494375614284
2017-01-01	18.5417740880579
2017-04-01	18.5773703810411
2017-07-01	18.4531173023560
2017-10-01	18.3105442989978
2018-01-01	18.7159577259766
2018-04-01	17.7171537035923