Year Per 100,000 People 1955 6.8795 1956 10.914 1957 13.4695 1958 12.7745 1959 11.5452 1960 17.0935 1961 16.3333 1962 22.442 1963 31.2202 1964 24.7826 1965 26.1874 1966 28.3963 1967 29.5734 1968 29.4129 1969 23.5696 1970 28.144 1971 45.2869 1972 24.5788 1973 38.4864 1974 43.6018 1975 49.1692 1976 27.5663 1977 38.0741 1978 48.2053 1979 33.6442 1980 40.7896 1981 45.3908 1982 45.5385 1983 28.4388 1984 46.259 1985 41.2011 1986 48.7031 1987 49.889