Year	Percent
1996-01-01	27.255000000000000
1997-01-01	20.752400000000000
1998-01-01	24.238600000000000
1999-01-01	24.092300000000000
2000-01-01	22.221999999999998
2001-01-01	9.730180000000000
2002-01-01	32.349100000000000
2003-01-01	0.000000000000000
2004-01-01	37.553900000000000
2005-01-01	21.144400000000000
2006-01-01	23.535000000000000
2007-01-01	18.057200000000000
2008-01-01	15.998500000000000
2009-01-01	17.068700000000000
2010-01-01	19.261700000000000
2011-01-01	17.615700000000000
2012-01-01	15.353100000000000
2013-01-01	15.353100000000000
2014-01-01	15.353100000000000
2015-01-01	11.764700000000000