Year Per 100,000 People 1955 0.8338 1956 1.2426 1957 1.2786 1958 2.5519 1959 2.6189 1960 2.3267 1961 1.1018 1962 1.8053 1963 1.9741 1964 2.0778 1965 1.9829 1966 1.2037 1967 1.7429 1968 1.6284 1969 2.3752 1970 1.1947 1971 2.3 1972 1.691 1973 0.8061 1974 0.4167 1975 1.2075 1976 0.8655 1977 0.631 1978 0.4156 1979 0.6481 1980 0.8736 1981 0.4528 1982 0.5367 1983 1.2974 1984 1.4809 1985 1.1854 1986 1.614 1987 1.7872