Year Per 100,000 People 1963 19.3474 1964 21.2115 1965 18.8478 1966 22.5833 1967 30.8774 1968 32.6867 1969 39.9704 1970 40.2041 1971 4.8465 1972 1.9254 1973 4.3666 1974 2.8872 1975 3.1973 1976 3.4837 1978 1.9467 1981 0.7678