Year	Percent
2006-01-01	36.45
2007-01-01	22.20
2008-01-01	32.65
2009-01-01	40.15
2010-01-01	49.00
2011-01-01	20.90
2012-01-01	25.30
2013-01-01	34.10
2014-01-01	21.50
2015-01-01	32.80