1963 -999 -3.8 -10.6 -11.4 -14.3 -16.2 -18.7 -16.5 -14.0 -15.4 -7.6 -1.6 1964 -0.7 -5.4 -8.2 -11.4 -15.5 -17.3 -14.7 -14.9 -18.9 -14.5 -5.7 -0.9 1965 -0.6 -3.5 -8.7 -9.8 -11.2 -15.4 -22.9 -19.0 -20.8 -14.4 -9.6 -1.1 1966 -1.7 -4.8 -7.3 -14.2 -13.2 -17.8 -19.5 -20.9 -15.1 -15.8 -6.5 -0.8 1967 0.7 -5.0 -7.6 -10.6 -11.9 -14.7 -17.5 -18.2 -18.3 -12.1 -5.3 -1.0 1968 -0.7 -4.2 -7.3 -10.3 -13.1 -15.9 -18.8 -17.0 -19.2 -13.4 -6.4 -2.4 1969 0.0 -2.4 -7.5 -11.1 -14.3 -14.5 -18.3 -22.0 -18.5 -13.2 -6.5 -1.0 1970 -0.7 -4.5 -5.8 -10.8 -14.3 -17.1 -17.3 -20.7 -19.8 -12.0 -6.3 -1.1 1971 -0.3 -2.8 -8.8 -12.6 -17.2 -17.9 -19.6 -19.2 -16.3 -12.5 -7.5 -0.2 1972 0.1 -3.5 -9.3 -10.5 -15.5 -17.3 -18.4 -15.2 -15.1 -13.6 -7.5 -2.9 1973 -0.8 -5.5 -10.0 -11.5 -12.1 -15.6 -19.3 -22.7 -16.8 -11.9 -6.2 -2.5 1974 -1.7 -3.8 -9.6 -12.0 -14.2 -16.3 -17.1 -17.2 -16.7 -12.3 -5.8 -0.1 1975 0.4 -4.8 -8.4 -13.5 -14.8 -15.9 -19.3 -20.2 -18.8 -13.0 -6.0 -2.1 1976 -0.6 -4.5 -8.1 -12.5 -15.0 -19.8 -20.7 -21.4 -20.4 -14.8 -6.5 0.4 1977 1.4 -3.7 -8.6 -14.8 -14.6 -15.9 -13.7 -14.1 -18.2 -14.3 -7.7 -0.9 1978 -1.8 -3.5 -9.2 -10.5 -12.2 -16.9 -15.0 -20.8 -15.7 -13.0 -7.0 -1.7 1979 -0.2 -4.2 -8.9 -8.8 -15.2 -18.7 -19.9 -19.9 -17.6 -14.1 -5.4 -1.6 1980 0.0 -4.8 -7.5 -10.1 -14.1 -15.5 -15.2 -17.7 -15.6 -13.5 -4.7 -1.0 1981 -1.6 -3.9 -6.8 -11.4 -14.8 -16.3 -15.6 -15.9 -19.4 -15.6 -7.4 -2.3 1982 -2.1 -5.1 -7.7 -13.1 -16.4 -16.6 -18.3 -21.2 -20.1 -15.5 -6.0 -1.1 1983 0.3 -4.9 -9.5 -13.1 -14.9 -16.4 -17.4 -18.9 -14.6 -12.9 -8.8 -3.8 1984 -0.6 -4.9 -8.4 -13.4 -12.4 -18.2 -22.7 -19.1 -17.0 -16.3 -7.5 -0.6 1985 0.7 -3.4 -9.3 -10.9 -17.0 -14.6 -17.7 -22.4 -16.7 -13.8 -8.6 -3.4 1986 -2.3 -1.6 -6.6 -12.5 -15.6 -16.6 -19.3 -17.9 -14.2 -13.7 -6.6 -1.8 1987 0.4 -2.9 -7.2 -9.4 -16.0 -13.3 -17.8 -21.7 -20.9 -14.3 -5.9 -1.4 1988 -0.2 -5.0 -7.7 -14.0 -13.6 -15.7 -17.2 -16.9 -15.7 -12.6 -7.7 -3.5 1989 -1.6 -3.3 -9.7 -13.6 -18.1 -17.4 -17.6 -18.2 -19.9 -12.6 -7.3 -1.0 1990 -0.1 -4.6 -7.5 -11.0 -14.7 -17.5 -12.0 -21.1 -22.4 -11.4 -7.0 -1.4 1991 -1.2 -3.4 -7.2 -11.4 -13.0 -14.5 -15.5 -16.3 -16.6 -15.0 -7.5 -0.3 1992 -0.3 -3.4 -7.5 -9.1 -12.3 -12.9 -15.5 -16.9 -20.2 -12.9 -6.2 -2.4 1993 0.1 -4.9 -9.2 -13.6 -17.4 -18.9 -20.0 -20.4 -17.4 -13.7 -7.7 -2.3 1994 -0.9 -5.4 -9.8 -12.3 -15.1 -13.0 -14.4 -18.9 -16.7 -12.3 -6.5 -2.8 1995 -3.0 -4.0 -9.8 -9.6 -15.0 -19.3 -12.9 -20.1 -20.3 -13.0 -7.2 -2.3 1996 -1.1 -2.9 -8.0 -12.5 -16.7 -14.4 -16.1 -15.8 -12.5 -11.0 -6.4 -1.5 1997 -1.5 -3.8 -8.6 -10.1 -15.7 -14.2 -19.2 -17.3 -22.8 -13.0 -7.6 -0.5 1998 -0.9 -3.7 -7.6 -13.9 -14.5 -15.4 -16.0 -21.9 -16.7 -15.2 -6.4 -2.9 1999 -2.1 -5.1 -8.9 -12.8 -14.2 -14.7 -999 -999 -999 -999 -999 -999 2013 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -1.0