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1964 -6.2 -1.0 0.0 10.3 13.7 19.1 19.3 17.2 14.6 8.1 4.3 -1.6 1965 -1.2 -3.4 2.4 7.8 11.6 16.3 17.2 16.2 15.0 6.9 0.2 -0.1 1966 -5.0 4.3 3.6 10.8 13.7 17.2 17.6 17.4 14.1 12.5 2.8 0.3 1967 -2.3 0.5 5.2 8.8 14.1 16.6 20.6 18.6 16.0 10.7 3.0 -1.3 1968 -3.8 1.0 4.6 10.8 13.3 18.0 18.2 17.6 14.7 8.8 4.6 -3.5 1969 -3.2 -1.8 0.7 9.1 16.0 16.1 19.5 17.2 15.1 9.9 4.4 -5.2 1970 -3.2 -2.5 1.5 7.8 12.3 17.5 18.1 18.2 13.4 7.8 5.4 -0.3 1971 -3.3 1.1 1.3 9.5 15.3 15.6 19.4 20.3 12.5 7.6 3.1 2.5 1972 -3.0 1.9 5.9 8.4 13.3 17.4 19.4 17.5 11.9 6.7 3.8 -0.2 1973 -1.2 0.5 4.7 7.0 14.0 16.6 18.6 19.4 15.4 6.9 1.4 -0.5 1974 0.9 3.3 7.0 8.9 12.8 14.8 17.1 20.0 14.4 5.2 3.7 2.5 1975 1.8 -0.5 4.7 8.3 14.5 16.5 19.5 19.1 17.4 8.2 2.3 0.1 1976 -0.4 -1.2 0.8 9.2 13.7 17.8 20.2 16.5 13.3 9.7 5.5 -1.0 1977 -1.6 1.0 6.8 7.2 13.0 17.5 18.3 17.1 12.3 9.7 4.5 -1.2 1978 -0.5 -2.4 4.8 7.6 12.1 15.7 16.4 16.3 13.4 9.4 1.7 -0.9 1979 -5.1 -1.2 4.6 7.6 14.9 19.1 16.2 17.4 14.6 7.5 3.8 2.7 1980 -4.6 0.5 2.5 6.3 11.2 15.9 16.8 17.8 13.7 8.0 1.8 -1.1 1981 -3.6 -0.7 6.6 8.5 14.3 17.9 17.9 18.5 15.1 9.2 3.7 -2.0 1982 -5.5 -1.9 4.4 6.8 14.0 17.5 19.6 19.1 17.8 9.5 4.3 1.3 1983 2.9 -2.4 4.8 10.6 14.7 17.1 22.2 20.1 15.1 8.8 1.7 -1.0 1984 -0.9 -0.9 3.0 8.6 12.9 15.2 16.9 18.1 13.7 9.8 4.7 -0.7 1985 -8.1 -5.2 3.2 8.8 15.0 14.4 18.7 18.2 14.2 8.4 0.7 1.8 1986 -1.0 -6.5 2.6 10.8 15.9 17.0 18.2 18.5 13.4 9.2 4.4 -0.9 1987 -7.3 -0.9 -0.9 9.4 12.0 16.3 19.4 16.3 16.2 10.0 4.8 1.1 1988 1.5 1.6 2.3 9.3 15.4 16.7 19.6 19.1 14.5 9.1 0.2 1.6 1989 -0.2 3.3 6.7 10.0 14.3 15.9 19.7 18.9 15.3 9.9 2.3 0.2 1990 -0.6 3.9 7.3 8.2 14.6 17.0 18.5 19.9 12.5 9.7 4.8 -0.5 1991 -0.3 -4.0 5.9 8.0 10.5 16.3 20.9 19.1 16.2 8.2 3.8 -1.8 1992 0.5 2.2 4.3 9.2 14.6 18.4 20.9 23.5 15.4 7.4 3.7 -0.6 1993 -0.5 -1.8 2.5 10.5 16.9 17.3 18.2 19.1 14.2 9.3 0.8 1.0 1994 2.2 -0.4 6.5 9.6 14.0 18.1 23.1 20.7 16.4 7.3 5.3 0.9 1995 -1.3 3.3 3.0 9.6 13.7 16.4 22.1 19.4 13.4 10.6 1.2 -1.9 1996 -4.3 -4.6 -0.1 9.4 14.6 17.8 17.6 18.4 11.3 9.9 5.5 -4.1 1997 -4.3 1.5 4.4 6.6 14.7 17.7 18.2 20.2 14.7 6.5 4.2 1.5 1998 0.9 3.4 3.7 11.2 14.7 18.8 19.7 19.8 14.4 8.8 0.8 -2.0 1999 -0.9 -0.8 5.9 10.8 14.7 17.4 20.9 18.8 18.1 9.6 3.1 -0.3 2000 -2.3 2.8 4.8 13.4 16.5 19.5 17.7 20.9 14.4 12.1 7.2 1.2 2001 -0.4 1.3 4.7 8.5 16.2 16.1 20.1 20.5 12.6 11.9 2.4 -3.9 2002 -1.2 3.6 5.8 9.3 17.0 19.1 20.9 20.4 14.0 7.5 6.0 -3.1 2003 -2.1 -2.7 4.6 9.1 17.2 21.3 20.3 22.5 15.4 6.9 5.9 0.3 2004 -3.3 1.0 3.8 10.7 13.1 17.0 19.2 20.2 14.9 10.9 4.6 0.3 2005 0.2 -2.2 2.1 10.8 14.8 17.5 19.0 17.5 15.5 9.5 2.6 -1.2 2006 -6.3 -2.9 1.2 10.3 13.9 18.3 22.7 16.2 16.5 11.0 6.1 1.9 2007 3.1 3.2 6.3 11.8 15.6 20.1 21.1 20.9 13.3 8.8 2.7 -0.2 2008 1.7 3.1 4.6 10.1 15.5 19.9 20.3 19.9 14.4 9.9 6.5 2.1 2009 -3.0 0.3 4.8 14.1 15.4 17.3 20.4 20.9 17.2 8.9 5.9 0.3 2010 -3.7 -0.5 4.9 10.1 13.6 18.5 21.9 19.2 13.5 7.2 6.7 -3.6