Year Per 100,000 People 1980 16.9688 1981 16.8064 1982 15.9024 1985 13.8961 1986 8.6834 1987 9.0558 1988 11.4809 1989 15.1023 1990 16.7964 1991 18.5872 1992 30.4222 1993 41.9271 1994 47.0099 1995 44.7201 1996 37.0007 1997 32.8294 1998 29.9567