Year	Percent
1980-01-01	0.95209599999999990
1981-01-01	0.95209599999999990
1982-01-01	0.95209599999999990
1983-01-01	0.95209599999999990
1984-01-01	0.95209599999999990
1985-01-01	-0.83391900000000010
1986-01-01	-0.83391900000000010
1987-01-01	-0.83391900000000010
1988-01-01	-0.83391900000000010
1989-01-01	-0.83391900000000010
1990-01-01	-0.20260799999999998
1991-01-01	-0.20260799999999998
1992-01-01	-0.20260799999999998
1993-01-01	-0.20260799999999998
1994-01-01	-0.20260799999999998
1995-01-01	-0.20260799999999998
1996-01-01	-0.57667700000000000
1997-01-01	0.06373500000000000
1998-01-01	-0.49201700000000000
1999-01-01	-0.49201700000000000
2000-01-01	-0.06689200000000000
2001-01-01	-0.06284000000000000
2002-01-01	-0.06058800000000000
2003-01-01	0.23261400000000000
2004-01-01	0.23261400000000000
2005-01-01	0.23261400000000000
2006-01-01	0.23261400000000000
2007-01-01	0.23261400000000000
2008-01-01	0.23261400000000000
2009-01-01	0.23261400000000000
2010-01-01	0.23261400000000000
2011-01-01	0.59153800000000000
2012-01-01	2.15178000000000000
2013-01-01	1.92984000000000020