Year Per 100,000 People 1980 29.334 1981 27.8309 1982 28.9112 1985 24.3485 1986 17.8245 1987 17.2903 1988 18.4764 1989 20.0414 1990 21.3191 1991 21.9666 1992 25.1045 1993 31.0119 1994 35.8663 1995 37.3471 1996 36.6415 1997 35.5183 1998 34.0667