Year Per 100,000 People 1963 5.1664 1964 4.6487 1965 4.1069 1966 2.9026 1967 6.4001 1968 4.7972 1969 3.4622 1970 4.9631 1971 5.1116 1979 2.3694 1980 2.6039 1981 1.1393 1984 0.5931