Year	Percent
1996-01-01	0.01954500000000000
1997-01-01	0.29687300000000000
1998-01-01	1.50528000000000000
1999-01-01	1.49217999999999980
2000-01-01	1.86002000000000000
2001-01-01	2.22008000000000000
2002-01-01	0.98151499999999990
2003-01-01	0.45588500000000004
2004-01-01	0.39826500000000004
2005-01-01	1.03740000000000000
2006-01-01	2.14984000000000000
2007-01-01	4.21599000000000100
2008-01-01	3.61990000000000000
2009-01-01	1.10286000000000000
2010-01-01	0.50249500000000000
2011-01-01	0.42788900000000000
2012-01-01	0.40699800000000000