Quarter	Percent
1998-04-01	3.17152395560769
1999-04-01	2.80681203820508
2000-04-01	2.29838528313768
2001-04-01	1.70130628001975
2002-04-01	2.78038532028072
2003-04-01	3.80826154185995
2004-04-01	3.94271570014144
2005-04-01	3.88512766051595
2006-04-01	3.40328984685196
2007-04-01	2.93030849875397
2008-04-01	2.81869508001868
2009-04-01	3.77098471561012
2010-01-01	5.37277011107371
2010-04-01	4.25443169968717
2010-07-01	4.35323383084577
2010-10-01	3.97149524920820
2011-01-01	4.45548654244306
2011-04-01	3.85139881813298
2011-07-01	3.94704584456975
2011-10-01	4.04777433556172
2012-01-01	4.43722498663486
2012-04-01	3.67701252968635
2012-07-01	4.48945079722983
2012-10-01	4.49456302859444
2013-01-01	5.08084074373484
2013-04-01	4.26582483406184
2013-07-01	4.76497102382486
2013-10-01	4.29308070512052
2014-01-01	5.37324197619906
2014-04-01	4.57404458598726
2014-07-01	4.81726915598587
2014-10-01	3.99778996803347
2015-01-01	4.95766883244733
2015-04-01	4.33463372345037
2015-07-01	4.88197004156537
2015-10-01	4.63887485916314
2016-01-01	5.49698502236919
2016-04-01	4.51911484463112
2016-07-01	4.94568985440259
2016-10-01	4.40606409518327
2017-01-01	5.36398467432950
2017-04-01	4.03647837463445
2017-07-01	4.62072649572650
2017-10-01	4.26352150845452
2018-01-01	5.06080665024630
2018-04-01	4.08747423860774