Year	Percent
1996-01-01	50.000000000000000
1997-01-01	58.823500000000000
1998-01-01	39.024400000000000
1999-01-01	36.363600000000000
2000-01-01	50.877200000000000
2001-01-01	57.978700000000000
2002-01-01	63.135600000000000
2003-01-01	62.456100000000000
2004-01-01	60.000000000000000
2005-01-01	58.441600000000000
2006-01-01	62.472500000000000
2007-01-01	60.336000000000006
2008-01-01	50.176700000000000
2009-01-01	51.103500000000000
2010-01-01	52.840700000000000
2011-01-01	56.907500000000000
2012-01-01	55.818300000000000
2013-01-01	51.941300000000000
2014-01-01	51.129000000000000