Quarter	Percent, Seasonally Adjusted
1999-01-01	28.3423531591757
1999-04-01	28.3904222060147
1999-07-01	27.9199989894541
1999-10-01	27.6960946308654
2000-01-01	27.5647750813850
2000-04-01	27.7062965806514
2000-07-01	27.9027611916486
2000-10-01	26.9007533165138
2001-01-01	27.0260831132898
2001-04-01	27.8805691833556
2001-07-01	28.3211802475788
2001-10-01	27.8938843139116
2002-01-01	28.8312140011836
2002-04-01	28.0024395572152
2002-07-01	28.7160716740222
2002-10-01	28.7196499766696
2003-01-01	28.3373126223656
2003-04-01	29.3165159812050
2003-07-01	29.1710922083770
2003-10-01	29.0842571805643
2004-01-01	30.1100058246513
2004-04-01	29.5557914972634
2004-07-01	29.4511400408958
2004-10-01	29.7372309276226
2005-01-01	30.3434754695819
2005-04-01	29.2364691397018
2005-07-01	29.1448652743908
2005-10-01	29.4238790958658
2006-01-01	29.1641055612096
2006-04-01	28.8142002212503
2006-07-01	29.2242858076763
2006-10-01	28.7768677672846
2007-01-01	29.3856901299038
2007-04-01	29.5548327073180
2007-07-01	29.7019499107151
2007-10-01	29.5813513442485
2008-01-01	28.9289851783088
2008-04-01	28.6110216425080
2008-07-01	28.4702007629387
2008-10-01	30.5877923090058
2009-01-01	32.3893267870236
2009-04-01	31.9115483313421
2009-07-01	30.9014784200049
2009-10-01	30.0409089783565
2010-01-01	30.0788721953114
2010-04-01	29.3884800429464
2010-07-01	28.4731461227739
2010-10-01	28.8184565142837
2011-01-01	27.3332212478652
2011-04-01	28.4282690912362
2011-07-01	28.3025252054381
2011-10-01	28.3844870622566
2012-01-01	28.0581808902242
2012-04-01	28.8046259935310
2012-07-01	28.5625938097611
2012-10-01	29.1491373929983
2013-01-01	29.2780095457311
2013-04-01	29.7514149599263
2013-07-01	29.9653331906196
2013-10-01	30.3071217146202
2014-01-01	30.3432547950962
2014-04-01	30.9041303245914
2014-07-01	31.2594528731198
2014-10-01	30.9619928154698
2015-01-01	32.0578698875595
2015-04-01	31.2230860924066
2015-07-01	31.1621799159289
2015-10-01	31.5028465312822
2016-01-01	32.6408756451174
2016-04-01	31.5776112028160
2016-07-01	32.1070129304299
2016-10-01	31.4557681266887
2017-01-01	30.7197437622069
2017-04-01	31.1778065652210
2017-07-01	31.3523232896112
2017-10-01	31.0334780758008
2018-01-01	31.0455538523576
2018-04-01	31.2073972833184