Year	Percent
1972-01-01	0.62363800000000000
1973-01-01	0.62363800000000000
1974-01-01	0.62363800000000000
1975-01-01	0.62363800000000000
1976-01-01	0.06433700000000000
1977-01-01	0.06433700000000000
1978-01-01	0.33471100000000004
1979-01-01	0.33471100000000004
1980-01-01	0.33471100000000004
1981-01-01	0.15429300000000000
1982-01-01	0.15429300000000000
1983-01-01	0.15429300000000000
1984-01-01	0.15429300000000000
1985-01-01	-0.18545999999999999
1986-01-01	-0.28123400000000004
1987-01-01	-0.28123400000000004
1988-01-01	-0.13197700000000000
1989-01-01	-0.13197700000000000
1990-01-01	-0.13197700000000000
1991-01-01	-0.25540799999999997
1992-01-01	6.31980000000000000
1993-01-01	1.31327000000000020
1994-01-01	0.51338500000000010
1995-01-01	0.35348100000000000
1996-01-01	2.32474000000000030
1997-01-01	-0.37525400000000000
1998-01-01	-0.72153600000000000
1999-01-01	0.43737500000000000
2000-01-01	-0.55290699999999990
2001-01-01	1.32700000000000000
2002-01-01	1.02019000000000000
2003-01-01	1.33598000000000000
2004-01-01	-0.18167600000000000
2005-01-01	-1.08371000000000000
2006-01-01	-0.71434000000000000
2007-01-01	-0.27986100000000000
2008-01-01	-0.15786900000000000
2009-01-01	1.02772000000000000
2010-01-01	0.55012600000000000
2011-01-01	-0.42383600000000000
2012-01-01	0.45703200000000000
2013-01-01	0.18393400000000000
2014-01-01	0.18393400000000000
2015-01-01	0.07548500000000000
2016-01-01	-0.15349000000000002