Year Deaths per 100,000 1955 13.77 1956 13.99 1957 14.29 1958 14.14 1959 14.69 1960 14.34 1961 14.83 1962 14.94 1963 15.49 1964 15.13 1965 16.38 1966 17.64 1967 17.96 1968 20.18 1969 18.88 1970 19.18 1971 19.89 1972 20.16 1973 21.63 1974 21.77 1975 22.9 1976 22.69 1977 24.01 1978 23.51 1979 24.46 1980 24.33 1981 25.38 1982 26.07 1983 26.86 1984 25.71 1985 27.01 1986 29.59 1987 28.45 1988 30.29 1989 30.95 1990 30.8 1991 32.06