Year	Percent
2006-01-01	4.22287482692692
2007-01-01	4.33029584603127
2008-01-01	4.79434301279048
2009-01-01	6.30588702013429
2010-01-01	5.28451004353841
2011-01-01	4.30134935041380
2012-01-01	3.95271392476598
2013-01-01	4.16017363089601
2014-01-01	4.79673835847353