Year Deaths per 100,000 1953 26.86 1954 26.55 1955 25.92 1956 24.72 1957 26.01 1958 25.38 1959 24.41 1960 24.5 1961 23.42 1962 23.69 1963 23.1 1964 22.95 1965 21.98 1966 21.87 1967 20.73 1968 20.9 1969 18.84 1970 18.89 1971 17.78 1972 16.91 1973 17.24 1974 16.06 1975 14.85 1976 14.25 1977 13.78 1978 13.38 1979 12.54 1980 12.5 1981 11.27 1982 11.09 1983 10.38 1984 11.46 1985 9.93 1986 9.51 1987 9.03 1988 8.93 1989 8.9 1990 8.98 1991 7.97