Year Per 100,000 People 1970 2.6542 1971 2.828 1972 3.0955 1973 2.2372 1974 2.1965 1975 3.1921 1976 3.5002 1977 2.7634 1992 4.2556 1993 3.9899 1994 4.1018 1995 5.0088 1996 3.9601