Year	Percent
2001-01-01	0.44
2002-01-01	0.53
2003-01-01	0.63
2004-01-01	0.63
2005-01-01	0.60
2006-01-01	0.60
2007-01-01	0.58
2008-01-01	0.80
2009-01-01	0.89
2010-01-01	0.89
2011-01-01	4.48
2012-01-01	4.43
2013-01-01	3.84
2014-01-01	3.87