Year	Percent
2004-01-01	28.1507
2005-01-01	20.9126
2006-01-01	16.5336
2007-01-01	14.6153
2008-01-01	27.9026
2009-01-01	18.8001
2010-01-01	17.1111
2011-01-01	17.8947
2012-01-01	10.6872