Year	Percent
1996-01-01	44.341700000000000
1997-01-01	55.512900000000000
1998-01-01	58.793800000000000
1999-01-01	36.803400000000000
2000-01-01	34.057100000000000
2001-01-01	41.518400000000000
2002-01-01	41.099900000000000
2003-01-01	35.113200000000000
2004-01-01	48.356000000000000
2005-01-01	50.689900000000000
2006-01-01	28.491600000000000
2007-01-01	30.637600000000000
2008-01-01	28.928700000000000
2009-01-01	26.181300000000000
2010-01-01	26.035700000000000
2011-01-01	20.503400000000000
2012-01-01	23.276900000000000
2013-01-01	23.546999999999997
2014-01-01	24.081999999999997