Year Per 100,000 People 1958 4.0003 1959 4.4611 1969 1.4076 1970 2.9762 1971 1.6712 1972 2.1926 1973 1.6096 1981 2.9527 1982 3.6729 1983 3.1186 1985 3.8938 1986 4.3566 1987 4.3238 1988 4.6753 1989 5.8597 1990 5.6673 1991 5.1731 1992 5.8512 1993 5.7717 1994 6.2554 1995 6.259