Year	Percent
2005-01-01	6.42811070117284
2006-01-01	5.85329236719666
2007-01-01	4.85723879549975
2008-01-01	4.23024512126466
2009-01-01	4.61924365815028
2010-01-01	4.27805054785553
2011-01-01	3.44368212171573
2012-01-01	3.17026929356729
2013-01-01	3.14740266773894