Year Per 100,000 People 1955 10.6732 1956 12.4136 1957 8.8697 1958 9.3091 1959 9.2293 1960 10.4295 1961 7.9964 1962 11.6211 1963 9.9357 1964 10.1349 1965 9.5251 1966 9.8692 1967 10.5099 1968 8.3353 1969 9.3236 1970 6.9987 1971 6.0274 1972 5.1921 1973 6.3418 1974 7.0489 1975 4.3041 1976 3.1681 1977 4.3641 1978 6.2082 1979 4.6913 1980 4.0143 1981 4.7831 1982 4.9294 1983 3.9035 1984 5.3724 1985 10.3848 1986 11.0267 1987 13.0397