Year	Percent
1962-01-01	2.10588000000000000
1963-01-01	2.10588000000000000
1964-01-01	2.10588000000000000
1965-01-01	2.10588000000000000
1966-01-01	2.10588000000000000
1967-01-01	2.10588000000000000
1968-01-01	2.10588000000000000
1969-01-01	2.10588000000000000
1970-01-01	2.10588000000000000
1971-01-01	2.10588000000000000
1972-01-01	1.18133000000000000
1973-01-01	1.37473000000000000
1974-01-01	1.04742000000000000
1975-01-01	0.98705499999999990
1976-01-01	0.47530800000000000
1977-01-01	0.76351700000000000
1978-01-01	0.76351700000000000
1979-01-01	0.76351700000000000
1980-01-01	0.32267300000000000
1981-01-01	-0.25557199999999997
1982-01-01	-0.43306100000000000
1983-01-01	0.60964000000000000
1984-01-01	-0.13851300000000000
1985-01-01	5.78378000000000000
1986-01-01	0.99448300000000000
1987-01-01	0.50311000000000010
1988-01-01	1.23447000000000020
1989-01-01	2.32563000000000000
1990-01-01	2.33074000000000000
1991-01-01	0.45936499999999997
1992-01-01	-0.35019900000000000
1993-01-01	3.25393000000000000
1994-01-01	-0.32600500000000004
1995-01-01	-1.28102000000000000
1996-01-01	-3.22582999999999980
1997-01-01	-0.17114000000000001
1998-01-01	7.59298999999999950
1999-01-01	2.47443000000000000
2000-01-01	8.40592000000000000
2001-01-01	7.26730000000000000
2002-01-01	2.04356000000000000
2003-01-01	15.26880000000000000
2004-01-01	20.68840000000000000
2005-01-01	31.23200000000000000
2006-01-01	38.36120000000000000
2007-01-01	3.83658000000000000
2008-01-01	-15.14140000000000000
2009-01-01	-23.59730000000000000
2010-01-01	-22.95920000000000000
2011-01-01	-25.46720000000000000
2012-01-01	-15.40020000000000000
2013-01-01	-1.62719000000000000
2014-01-01	-2.16712000000000000
2015-01-01	2.68559000000000040
2016-01-01	-3.53131000000000000