Year Per 100,000 People 1968 25.5084 1969 25.6316 1978 24.6232 1979 25.3014 1980 26.0955 1981 26.2426 1982 26.3138 1983 27.4869 1984 28.9145 1985 26.5598 1986 23.9263 1987 28.3691 1988 26.6572 1989 26.0724 1990 24.1959