Quarter	Percent, Seasonally Adjusted
1998-04-01	3.68775304948810
1999-04-01	3.16724604094245
2000-04-01	2.71314833423514
2001-04-01	2.52280175808541
2002-04-01	2.99432759399628
2003-04-01	4.20754576389061
2004-04-01	4.40740007914523
2005-04-01	4.52200825309491
2006-04-01	4.07346305012373
2007-04-01	3.72350628176849
2008-04-01	3.41555085741132
2009-04-01	4.21727161264950
2010-01-01	5.12371456184315
2010-04-01	5.06730906248207
2010-07-01	4.91567686699034
2010-10-01	4.58661435892619
2011-01-01	4.46818666058580
2011-04-01	4.26428601427343
2011-07-01	4.59397444845598
2011-10-01	4.73605175253193
2012-01-01	4.30838240029446
2012-04-01	4.41434058116194
2012-07-01	4.63830954692046
2012-10-01	5.04021271731824
2013-01-01	4.89222055229723
2013-04-01	4.94486365211904
2013-07-01	4.87217101698163
2013-10-01	4.80943381442254
2014-01-01	5.08246214489642
2014-04-01	5.11578080426348
2014-07-01	5.07328344836415
2014-10-01	4.63265985395260
2015-01-01	4.44355471764928
2015-04-01	4.83122170834209
2015-07-01	5.15583274163685
2015-10-01	5.24566793992091
2016-01-01	5.07786326353635
2016-04-01	5.10113157150387
2016-07-01	5.15420772240899
2016-10-01	5.01441132665850
2017-01-01	5.04821967982783
2017-04-01	4.83365713675976
2017-07-01	5.02456920633132
2017-10-01	4.94613026304584
2018-01-01	5.00915945866505
2018-04-01	5.09851057617402