Year	Percent
2000-01-01	24.60
2001-01-01	24.60
2002-01-01	32.50
2003-01-01	27.30
2004-01-01	38.10
2005-01-01	35.70
2006-01-01	33.30
2007-01-01	35.00
2008-01-01	43.40
2009-01-01	34.00
2010-01-01	30.74
2011-01-01	26.97
2012-01-01	27.68
2013-01-01	30.12
2014-01-01	30.21
2015-01-01	33.98