Year Per 100,000 People 1961 2.0326 1963 2.2003 1964 1.6536 1977 2.5525 1978 2.1752 1979 1.5313 1980 2.0295 1982 2.1274 1984 2.2797 1985 2.7978 1986 2.6348 1987 2.8851 1988 2.3809 1991 2.5119