Year	Percent
2007-01-01	24.7801
2008-01-01	29.5252
2009-01-01	36.7378
2010-01-01	46.8198
2011-01-01	34.8808
2012-01-01	26.1883
2013-01-01	24.7952
2014-01-01	26.3948