Quarter	Percent, Seasonally Adjusted
1998-04-01	9.82463465553236
1999-04-01	10.25843772108700
2000-04-01	10.59690371719510
2001-04-01	10.80992007909700
2002-04-01	11.26995764092540
2003-04-01	11.47626920440340
2004-04-01	11.99888085055360
2005-04-01	12.59115409004440
2006-04-01	12.24441648317080
2007-04-01	11.79225036094740
2008-04-01	12.03511203511200
2009-04-01	12.19428961437830
2010-01-01	12.93474938957240
2010-04-01	12.78489254380930
2010-07-01	12.71033811054670
2010-10-01	12.68339725241520
2011-01-01	12.31092430536410
2011-04-01	12.26655638528010
2011-07-01	12.25951426136810
2011-10-01	12.17418841866680
2012-01-01	12.37607136272280
2012-04-01	12.30866402341520
2012-07-01	12.08065581231250
2012-10-01	12.17587666022760
2013-01-01	12.20551535730880
2013-04-01	12.37890431288850
2013-07-01	12.48258804800680
2013-10-01	12.41498608133080
2014-01-01	12.51212262959210
2014-04-01	12.37117113918690
2014-07-01	12.32001797814470
2014-10-01	12.36746017756050
2015-01-01	12.20066366592900
2015-04-01	12.21445208954770
2015-07-01	12.22108584756060
2015-10-01	12.00158607113990
2016-01-01	11.94058446645630
2016-04-01	11.93811789821460
2016-07-01	11.78813939911230
2016-10-01	11.69602508363040
2017-01-01	11.65490801617360
2017-04-01	11.53260570675110
2017-07-01	11.41528683607730
2017-10-01	11.49661549361360
2018-01-01	11.51734655556630
2018-04-01	11.48469410995200