Quarter	Percent, Seasonally Adjusted
2003-01-01	18.7070288775457
2003-04-01	18.6332148151433
2003-07-01	17.8373494850903
2003-10-01	19.4847344111499
2004-01-01	19.4377636840048
2004-04-01	20.0274179970476
2004-07-01	19.9547339551356
2004-10-01	19.8449205368810
2005-01-01	18.7919721297805
2005-04-01	18.8646023064484
2005-07-01	18.9326515191807
2005-10-01	18.0628317422723
2006-01-01	17.7055699780797
2006-04-01	17.3795349809410
2006-07-01	17.4607960708935
2006-10-01	17.6398159571277
2007-01-01	16.9468520129863
2007-04-01	17.1596385342367
2007-07-01	17.4208880519438
2007-10-01	17.8206624136782
2008-01-01	17.9197109077544
2008-04-01	18.0578503461318
2008-07-01	18.1052422825164
2008-10-01	18.2545082528731
2009-01-01	19.5853087595024
2009-04-01	20.5150262941927
2009-07-01	19.4931527713998
2009-10-01	19.1131115938687
2010-01-01	19.3511355465300
2010-04-01	19.5500132379440
2010-07-01	19.9581326833099
2010-10-01	19.6166159052152
2011-01-01	19.9443733887615
2011-04-01	19.5109210322599
2011-07-01	20.3495978407427
2011-10-01	21.0039026634236
2012-01-01	20.1809409559645
2012-04-01	19.6991647405354
2012-07-01	20.2740050397974
2012-10-01	20.3545477968382
2013-01-01	20.2232485950808
2013-04-01	19.4524725912534
2013-07-01	18.8445890670543
2013-10-01	18.7857968202217
2014-01-01	18.7731682964113
2014-04-01	17.9221818701737
2014-07-01	17.5157826186654
2014-10-01	17.2314570640674
2015-01-01	17.2529221060138
2015-04-01	16.7916666302907
2015-07-01	17.1398890776979
2015-10-01	16.7857768966195
2016-01-01	16.8612139623830
2016-04-01	16.2501075883115
2016-07-01	15.8838173126278
2016-10-01	15.8396868900600
2017-01-01	15.8142228152581
2017-04-01	16.7327253270457
2017-07-01	18.3951475905794
2017-10-01	17.4825039687247
2018-01-01	17.8295229659744
2018-04-01	18.5333959680576