Year Per 100,000 People 1965 1.6764 1966 3.6681 1967 4.5659 1968 7.1721 1969 3.56 1970 7.5858 1971 4.7294 1972 5.4195 1973 5.9745 1974 6.8729 1975 5.8005 1976 6.1863 1977 4.8969 1978 3.1306 1979 3.2353 1980 4.7178 1981 5.6514 1982 7.5267 1983 6.0546 1984 3.726 1985 3.4019