Year	Percent
1962-01-01	2.110
1963-01-01	2.110
1964-01-01	2.110
1965-01-01	2.110
1966-01-01	2.110
1967-01-01	0.025
1968-01-01	0.015
1969-01-01	0.060
1970-01-01	0.005
1971-01-01	0.085
1972-01-01	0.200
1973-01-01	0.130
1974-01-01	0.130
1975-01-01	0.150
1976-01-01	0.240
1977-01-01	0.370
1978-01-01	0.230
1979-01-01	0.090
1980-01-01	0.100
1981-01-01	0.120
1982-01-01	0.130
1983-01-01	0.175
1984-01-01	0.270
1985-01-01	-0.010
1986-01-01	0.080
1987-01-01	0.000
1988-01-01	0.130
1989-01-01	0.100
1990-01-01	0.065
1991-01-01	0.145
1992-01-01	0.035
1993-01-01	0.250
1994-01-01	0.180
1995-01-01	0.180
1996-01-01	0.390
1997-01-01	-0.010
1998-01-01	-0.040
1999-01-01	0.280
2000-01-01	-0.010
2001-01-01	0.245
2002-01-01	0.220
2003-01-01	0.365
2004-01-01	0.660
2005-01-01	0.560
2006-01-01	0.570
2007-01-01	0.220
2008-01-01	-0.080
2009-01-01	0.590
2010-01-01	0.230
2011-01-01	0.150
2012-01-01	0.510
2013-01-01	0.435
2014-01-01	0.075
2015-01-01	-0.030