Quarter	Percent, Seasonally Adjusted
1999-04-01	6.18111230959162
1999-07-01	5.20166745524062
1999-10-01	5.59605300895640
2000-01-01	5.23354054133604
2000-04-01	5.44946199291564
2000-07-01	4.94222664627518
2000-10-01	4.98007521582329
2001-01-01	4.70817198705422
2001-04-01	4.20107773584858
2001-07-01	4.57490341070928
2001-10-01	4.16824264181540
2002-01-01	4.13324548461138
2002-04-01	4.19524359464597
2002-07-01	4.28259294749459
2002-10-01	4.10969727582470
2003-01-01	4.23973305384748
2003-04-01	4.16319066296663
2003-07-01	3.75030942723741
2003-10-01	3.71308947351678
2004-01-01	3.72074390497390
2004-04-01	3.73749403226429
2004-07-01	3.39820907610767
2004-10-01	3.24882826683707
2005-01-01	3.32428503862189
2005-04-01	3.32200806395943
2005-07-01	3.33551868696986
2005-10-01	3.62485528870746
2006-01-01	3.37755203118916
2006-04-01	3.21559981902135
2006-07-01	3.74063367358375
2006-10-01	3.75462924775046
2007-01-01	4.21126192472116
2007-04-01	4.01608518233989
2007-07-01	3.82179557430990
2007-10-01	3.78028435858473
2008-01-01	3.05825089309564
2008-04-01	3.30555164074697
2008-07-01	3.65721062989168
2008-10-01	4.89540484912960
2009-01-01	5.28045871794676
2009-04-01	5.87382618212649
2009-07-01	5.92885963028921
2009-10-01	6.37451805894146
2010-01-01	5.66232999402060
2010-04-01	6.13934037527993
2010-07-01	6.15669705753208
2010-10-01	5.75962732179340
2011-01-01	6.08908870404506
2011-04-01	6.13543813463531
2011-07-01	6.38815792841632
2011-10-01	6.40337190161010
2012-01-01	6.36015210178989
2012-04-01	5.76590509898140
2012-07-01	5.73792378916360
2012-10-01	5.86212821614878
2013-01-01	5.62255103669461
2013-04-01	5.49300349599247
2013-07-01	5.30572295656097
2013-10-01	5.22974112732872
2014-01-01	4.74141919710096
2014-04-01	4.53634395783664
2014-07-01	4.29825377306875
2014-10-01	4.22253374931450
2015-01-01	3.59562123838556
2015-04-01	3.70294444690269
2015-07-01	4.10791932227358
2015-10-01	3.86424252438490
2016-01-01	4.33346138665137
2016-04-01	4.30701802374299
2016-07-01	4.10413012019276
2016-10-01	4.03443461959109
2017-01-01	4.04468909150435
2017-04-01	4.13631535136792
2017-07-01	3.96499291528451
2017-10-01	3.90153025546640
2018-01-01	3.48526045843105
2018-04-01	3.07917571776695