1958 -53.6 -53.1 -56.6 -60.0 -60.6 -65.2 -64.5 -66.6 -67.6 -64.2 -58.0 -55.0 1959 -51.4 -52.6 -55.0 -59.1 -61.8 -63.7 -65.1 -65.6 -67.1 -62.6 -59.4 -54.0 1960 -53.8 -52.6 -56.1 -59.8 -60.9 -64.4 -65.8 -65.4 -64.7 -62.5 -57.0 -52.6 1961 -54.5 -54.2 -57.5 -58.3 -59.9 -59.9 -62.6 -63.7 -61.3 -62.5 -59.8 -56.5 1962 -55.7 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 1963 -999 -999 -999 -999 -63.0 -65.1 -65.4 -66.1 -65.5 -64.4 -61.4 -57.3 1964 -54.8 -56.0 -55.9 -60.5 -63.6 -63.8 -63.4 -63.5 -66.3 -62.2 -57.0 -53.5 1965 -53.4 -53.4 -55.2 -58.6 -60.6 -63.7 -65.5 -65.2 -65.3 -63.3 -59.3 -55.2 1966 -53.0 -52.0 -53.7 -59.5 -62.3 -64.6 -64.8 -68.0 -65.6 -63.1 -59.0 -55.6 1967 -52.8 -54.6 -55.2 -60.4 -61.7 -62.9 -63.7 -66.2 -64.0 -63.7 -55.8 -52.3 1968 -53.9 -53.3 -56.8 -58.7 -61.1 -63.5 -65.5 -66.6 -66.2 -62.3 -53.8 -53.9 1969 -52.3 -55.1 -55.3 -58.8 -61.6 -62.1 -65.4 -67.4 -65.4 -62.9 -60.1 -56.4 1970 -53.6 -55.2 -55.4 -59.0 -61.1 -62.6 -63.9 -65.7 -64.2 -62.7 -59.5 -57.1 1971 -54.0 -54.0 -57.7 -58.5 -60.3 -63.9 -63.9 -63.3 -64.5 -62.8 -60.0 -53.1 1972 -52.7 -54.5 -56.6 -59.1 -61.9 -63.7 -65.1 -63.5 -63.6 -64.8 -60.1 -55.9 1973 -52.7 -56.1 -57.4 -58.2 -60.5 -62.0 -63.9 -65.7 -64.2 -64.0 -58.4 -55.0 1974 -50.6 -51.6 -55.0 -59.5 -62.9 -62.3 -65.0 -65.8 -65.6 -62.8 -55.2 -52.3 1975 -51.5 -53.7 -55.3 -60.4 -60.2 -61.3 -63.4 -64.1 -65.0 -61.8 -56.4 -54.2 1976 -51.5 -54.3 -56.3 -60.3 -63.0 -64.1 -64.3 -64.4 -64.6 -63.1 -57.9 -53.8 1977 -53.1 -55.5 -57.7 -60.4 -59.8 -62.8 -64.3 -63.2 -66.5 -64.5 -60.3 -54.1 1978 -53.9 -55.4 -58.4 -60.7 -62.8 -64.4 -64.7 -68.2 -66.3 -65.2 -59.8 -55.9 1979 -54.5 -53.9 -57.3 -60.0 -63.3 -65.8 -66.1 -66.9 -67.0 -64.4 -58.5 -53.8 1980 -54.0 -53.2 -56.9 -57.8 -62.8 -64.2 -63.2 -64.1 -63.8 -65.0 -58.5 -55.3 1981 -55.2 -54.5 -57.2 -59.9 -63.5 -64.4 -63.4 -63.2 -63.1 -63.7 -60.2 -54.8 1982 -53.5 -53.0 -56.3 -61.3 -999 -999 -999 -999 -999 -999 -999 -999 1983 -999 -999 -999 -59.9 -59.8 -62.1 -64.8 -65.2 -63.1 -64.1 -60.7 -56.1 1984 -53.7 -55.1 -57.2 -60.6 -60.6 -64.5 -65.2 -67.1 -65.9 -65.1 -59.7 -54.9 1985 -53.4 -53.8 -55.8 -59.5 -64.0 -63.4 -66.2 -64.7 -66.9 -64.6 -61.4 -56.9 1986 -53.3 -53.9 -55.7 -58.7 -61.4 -63.5 -63.6 -67.3 -64.9 -63.3 -59.4 -55.4 1987 -52.7 -54.7 -56.7 -60.8 -63.6 -62.1 -64.6 -67.4 -65.2 -62.3 -60.7 -55.0 1988 -53.3 -54.8 -57.5 -59.9 -61.0 -62.7 -64.5 -65.2 -63.3 -61.0 -57.7 -54.5 1989 -52.8 -53.5 -57.8 -59.6 -64.2 -66.6 -65.3 -64.6 -63.3 -62.2 -60.2 -51.8 1990 -52.9 -54.2 -56.3 -60.2 -61.4 -64.1 -62.7 -66.4 -65.9 -61.4 -58.8 -54.9 1991 -53.6 -54.5 -56.6 -57.3 -62.9 -61.3 -61.8 -63.1 -65.8 -62.2 -58.4 -52.0 1992 -52.3 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999 -999