Year	Percent
2006-01-01	24.60
2007-01-01	16.30
2008-01-01	26.50
2009-01-01	32.35
2010-01-01	40.80
2011-01-01	15.95
2012-01-01	14.00
2013-01-01	27.50
2014-01-01	15.25
2015-01-01	28.80