Year Per 100,000 People 1979 10.2189 1980 10.2292 1981 10.4439 1982 10.4231 1983 11.0395 1984 9.9623 1985 8.6827 1986 9.668 1987 8.2402 1988 9.4261 1989 9.8242 1990 11.0152 1991 10.3428 1992 8.7852