Year Deaths per 100,000 1955 9.54 1956 9.2 1957 9.77 1958 9.42 1959 9.21 1960 10.28 1961 9.76 1962 9.3 1963 10.05 1964 10.59 1965 10.34 1966 10.46 1967 11.25 1968 12.68 1969 12.32 1970 12.69 1971 12.74 1972 13.51 1973 14.09 1974 13.46 1975 13.86 1976 13.47 1977 14.66 1978 14.89 1979 14.15 1980 14.7 1981 15.73 1982 14.65 1983 15.4 1984 15.31 1985 15.62 1986 15.9 1987 15.57 1988 17.61 1989 16.75 1990 16.51 1991 16.75