Year	Percent
1996-01-01	69.230800000000000
1997-01-01	69.230800000000000
1998-01-01	23.684200000000000
1999-01-01	19.512200000000000
2000-01-01	13.157900000000000
2001-01-01	17.391300000000000
2002-01-01	48.648600000000000
2003-01-01	14.084500000000000
2004-01-01	9.090910000000001
2005-01-01	20.588200000000000
2006-01-01	19.047600000000000
2007-01-01	22.580600000000000
2008-01-01	28.985500000000000
2009-01-01	29.411800000000000
2010-01-01	38.666700000000000
2011-01-01	42.857100000000000
2012-01-01	45.882400000000000
2013-01-01	48.387100000000000
2014-01-01	53.333300000000000
2015-01-01	39.530400000000000
2016-01-01	48.068400000000000