Year	Percent
1972-01-01	0.251211000000000000
1973-01-01	0.041097000000000000
1974-01-01	0.041097000000000000
1975-01-01	0.041097000000000000
1976-01-01	0.041097000000000000
1977-01-01	0.314695000000000000
1978-01-01	0.456636000000000000
1979-01-01	0.456636000000000000
1980-01-01	0.128324000000000000
1981-01-01	0.059708000000000004
1982-01-01	-0.032654000000000000
1983-01-01	-0.032654000000000000
1984-01-01	-0.032654000000000000
1985-01-01	-0.258907000000000000
1986-01-01	-0.258907000000000000
1987-01-01	-0.004411000000000000
1988-01-01	0.556236000000000000
1989-01-01	-0.265908000000000000
1990-01-01	34.332700000000000000
1991-01-01	0.570059000000000000
1992-01-01	-0.065013000000000000
1993-01-01	1.061520000000000000
1994-01-01	-0.451080000000000040
1995-01-01	0.098790000000000000
1996-01-01	0.038088000000000000
1997-01-01	-0.313361000000000000
1998-01-01	-5.850140000000001000
1999-01-01	-0.274555000000000000
2000-01-01	-0.344031000000000000
2001-01-01	0.369394000000000000
2002-01-01	-0.302496999999999960
2003-01-01	0.820371999999999900
2004-01-01	1.414810000000000100
2005-01-01	1.971690000000000200
2006-01-01	-0.021256000000000000
2007-01-01	0.426716000000000000
2008-01-01	-0.058236000000000000
2009-01-01	2.465830000000000000
2010-01-01	0.813346000000000000
2011-01-01	1.704359999999999900
2012-01-01	1.704359999999999900
2013-01-01	1.704359999999999900
2014-01-01	-0.597895000000000000