Year Per 100,000 People 1955 11.197 1956 11.5085 1957 8.9898 1958 9.2935 1959 9.694 1960 7.6384 1961 7.5044 1962 7.9141 1963 11.669 1964 7.8614 1965 7.1579 1966 8.6029 1967 11.1829 1968 7.0024 1969 9.8052 1970 9.9146 1971 5.5099 1972 4.5823 1973 6.6775 1974 7.0859 1975 3.3621 1976 3.3138 1977 4.857 1978 3.7783 1979 4.7335 1980 3.404 1981 5.0669 1982 4.5879 1983 4.2544 1984 4.1956 1985 8.5568 1986 9.1956 1987 12.7439