Quarter	Percent, Seasonally Adjusted
2004-01-01	17.9660541917745
2004-04-01	18.3906827620146
2004-07-01	18.4451916258538
2004-10-01	18.7795914397398
2005-01-01	18.9569521412289
2005-04-01	19.2376915118420
2005-07-01	19.3432770151873
2005-10-01	19.7121368678541
2006-01-01	20.3389282572747
2006-04-01	20.6403543834462
2006-07-01	20.7114174716134
2006-10-01	20.8875200465142
2007-01-01	21.1726811701248
2007-04-01	21.1574990076970
2007-07-01	21.3647160635790
2007-10-01	21.6566605935065
2008-01-01	22.6826004783076
2008-04-01	23.0039662549782
2008-07-01	23.0771000537958
2008-10-01	20.1308340261243
2009-01-01	17.9828437651297
2009-04-01	17.6752518182052
2009-07-01	18.4953644621599
2009-10-01	19.0512728355386
2010-01-01	19.9999331894803
2010-04-01	20.2976259158593
2010-07-01	20.3898974327781
2010-10-01	20.8616338155587
2011-01-01	22.1531977826398
2011-04-01	21.9568286808552
2011-07-01	22.0622947170542
2011-10-01	21.7352625017663
2012-01-01	22.0763115886689
2012-04-01	21.8031276560100
2012-07-01	21.4261878217389
2012-10-01	21.0844936317054
2013-01-01	22.0901088750548
2013-04-01	21.6111376090819
2013-07-01	21.4914055743626
2013-10-01	21.2956605185614
2014-01-01	21.9278490557282
2014-04-01	21.3404830968075
2014-07-01	21.1655278714318
2014-10-01	20.7061546068593
2015-01-01	20.8402750883657
2015-04-01	19.9953011375151
2015-07-01	19.7423434724038
2015-10-01	19.1919273115940
2016-01-01	19.4192211224822
2016-04-01	18.9667528669396
2016-07-01	18.7931202985480
2016-10-01	18.9256879129430
2017-01-01	20.0225403399828
2017-04-01	19.5663250005196
2017-07-01	19.5746343517501
2017-10-01	19.6032742280949