Year	Percent
1972-01-01	0.102496000000000000
1973-01-01	0.045409000000000000
1974-01-01	0.023778999999999998
1975-01-01	0.023778999999999998
1976-01-01	0.125100000000000000
1977-01-01	0.263380000000000000
1978-01-01	0.088147000000000000
1979-01-01	0.087566999999999990
1980-01-01	0.087566999999999990
1981-01-01	-0.015177000000000001
1982-01-01	0.006390000000000000
1983-01-01	-0.036890000000000000
1984-01-01	-0.067455999999999990
1985-01-01	-0.222479000000000000
1986-01-01	-0.047737000000000000
1987-01-01	-0.095551000000000000
1988-01-01	-0.028148000000000003
1989-01-01	-0.043938000000000000
1990-01-01	-0.043938000000000000
1991-01-01	0.141824000000000000
1992-01-01	-0.001498000000000000
1993-01-01	0.463684000000000040
1994-01-01	0.236153000000000030
1995-01-01	0.184944000000000000
1996-01-01	0.428021000000000000
1997-01-01	-0.201993000000000000
1998-01-01	-1.348350000000000000
1999-01-01	0.735416000000000000
2000-01-01	0.028836000000000000
2001-01-01	-0.111911000000000000
2002-01-01	-0.226198000000000000
2003-01-01	0.596252999999999900
2004-01-01	-0.119973000000000000
2005-01-01	0.236197000000000000
2006-01-01	0.551984000000000000
2007-01-01	0.142296000000000000
2008-01-01	-0.118291000000000010
2009-01-01	0.672038000000000000
2010-01-01	0.270817000000000030
2011-01-01	0.352534000000000000
2012-01-01	0.613706000000000100
2013-01-01	0.153752000000000000
2014-01-01	-0.204235000000000000
2015-01-01	-0.226540000000000020
2016-01-01	-0.058903000000000000