Year Per 100,000 People 1980 11.7361 1981 11.1006 1982 11.1027 1985 10.4274 1986 9.0716 1987 8.8798 1988 9.2838 1989 8.9317 1990 9.1364 1991 8.8522 1992 9.6359 1993 10.8251 1994 11.2214 1995 11.4191 1996 10.3605 1997 10.0781 1998 9.3943