Year Per 100,000 People 1963 1.0716 1964 1.2454 1965 1.8126 1966 1.8316 1967 1.2625 1968 1.2725 1969 1.2609 1970 1.0518 1971 1.0378 1972 0.9221 1973 1.6552 1974 1.2176 1975 1.34 1976 0.861 1978 1.1615 1981 0.4967