Year Per 100,000 People 1966 4.646 1967 6.1137 1968 6.8119 1969 7.295 1970 7.138 1977 8.407 1978 5.4944 1979 3.5535 1980 3.5128 1981 4.0148 1982 4.1885 1983 4.1987 1984 4.9331 1985 5.0957 1986 5.8861 1987 5.6259 1988 5.7803 1989 6.0979 1990 5.1493 1991 4.4003 1992 4.7049 1993 4.2251 1994 4.4852 1995 4.2226 1996 4.6528