Year	Percent
1972-01-01	0.47426100000000000
1973-01-01	0.47426100000000000
1974-01-01	0.45533199999999996
1975-01-01	0.40020400000000000
1976-01-01	0.40020400000000000
1977-01-01	0.40020400000000000
1978-01-01	0.40020400000000000
1979-01-01	0.36529600000000000
1980-01-01	0.43630200000000000
1981-01-01	1.65258000000000000
1982-01-01	0.23255300000000000
1983-01-01	3.12637000000000000
1984-01-01	1.28162000000000000
1985-01-01	1.85955000000000000
1986-01-01	-0.01043500000000000
1987-01-01	-1.01587000000000000
1988-01-01	-0.23798100000000000
1989-01-01	-0.13745600000000000
1990-01-01	0.07495200000000000
1991-01-01	-0.11234300000000001
1992-01-01	1.73795000000000000
1993-01-01	-0.20769700000000000
1994-01-01	-0.96735799999999990
1995-01-01	1.39261000000000010
1996-01-01	1.11886000000000000
1997-01-01	-0.52036700000000000
1998-01-01	-0.56060000000000000
1999-01-01	2.19167000000000020
2000-01-01	-0.17525700000000000
2001-01-01	2.94777000000000020
2002-01-01	3.86884000000000000
2003-01-01	2.09636000000000000
2004-01-01	4.48135000000000000
2005-01-01	6.97516999999999900
2006-01-01	7.88416000000000050
2007-01-01	-0.78542500000000000
2008-01-01	16.24750000000000000
2009-01-01	2.72987000000000000
2010-01-01	4.60596000000000000
2011-01-01	-1.02377000000000000
2012-01-01	2.38770999999999980
2013-01-01	4.48266000000000000
2014-01-01	-10.75130000000000000
2015-01-01	3.32018000000000000
2016-01-01	-0.11941500000000001