Year	Percent
1967-01-01	0.054617999999999990
1968-01-01	0.054617999999999990
1969-01-01	0.054617999999999990
1970-01-01	0.054617999999999990
1971-01-01	0.054617999999999990
1972-01-01	0.136748000000000000
1973-01-01	0.078542000000000000
1974-01-01	0.112165000000000010
1975-01-01	0.372017000000000000
1976-01-01	0.438127999999999960
1977-01-01	0.465981000000000030
1978-01-01	0.115568000000000000
1979-01-01	0.319778000000000000
1980-01-01	0.456140000000000000
1981-01-01	0.332399000000000000
1982-01-01	0.505463000000000000
1983-01-01	1.107850000000000000
1984-01-01	1.765720000000000200
1985-01-01	-0.901218000000000100
1986-01-01	0.096377000000000000
1987-01-01	-0.151860000000000000
1988-01-01	0.585098000000000000
1989-01-01	1.417100000000000000
1990-01-01	0.049582999999999995
1991-01-01	-0.628785000000000000
1992-01-01	0.261494000000000000
1993-01-01	1.739930000000000000
1994-01-01	0.708599000000000000
1995-01-01	-0.221169000000000000
1996-01-01	0.201663000000000000
1997-01-01	-0.933916000000000000
1998-01-01	-1.762370000000000000
1999-01-01	-0.065350000000000000
2000-01-01	1.275590000000000000
2001-01-01	1.094129999999999800
2002-01-01	-0.258784000000000000
2003-01-01	1.449979999999999800
2004-01-01	1.005229999999999800
2005-01-01	-0.277091000000000000
2006-01-01	1.950570000000000100
2007-01-01	1.924700000000000000
2008-01-01	-2.393550000000000000
2009-01-01	1.869630000000000000
2010-01-01	1.781000000000000000
2011-01-01	-0.249685000000000000
2012-01-01	2.257300000000000000
2013-01-01	-1.878900000000000000
2014-01-01	1.986870000000000100
2015-01-01	2.059580000000000000
2016-01-01	0.969366000000000000