Quarter	Percent
1999-04-01	2.13414115284467
2000-04-01	1.79528357704336
2001-04-01	1.68882621541767
2002-04-01	1.97973835618710
2003-04-01	2.79218647406435
2004-04-01	2.90378174487042
2005-04-01	2.97115802695782
2006-04-01	2.69407558733401
2007-04-01	2.46913580246914
2008-04-01	2.28466345629373
2009-04-01	2.80848063037513
2010-01-01	3.60146973975889
2010-04-01	3.10066951437487
2010-07-01	3.30744590837665
2010-10-01	2.84557129736973
2011-01-01	3.15169897445908
2011-04-01	2.62239595033772
2011-07-01	3.09841497268738
2011-10-01	2.97495091330993
2012-01-01	3.05221959313660
2012-04-01	2.73311658427233
2012-07-01	3.16020071345046
2012-10-01	3.16617241328435
2013-01-01	3.46750228028364
2013-04-01	3.04692886587352
2013-07-01	3.30232830232830
2013-10-01	3.00579887519305
2014-01-01	3.58585418301223
2014-04-01	3.15949587136028
2014-07-01	3.43014774910094
2014-10-01	2.93719778954640