Year Per 100,000 People 1980 20.3411 1981 21.0128 1982 21.1645 1983 19.1051 1984 18.3996 1985 15.5288 1986 13.2162 1987 14.207 1988 19.5964 1989 24.6772 1990 26.9886 1991 29.4948 1992 28.0169 1993 28.8728 1994 26.1317 1995 24.2969 1996 21.0078 1997 18.86 1998 21.0843