Year	Per 100,000 People
1961	4.1896
1963	6.0133
1964	5.5764
1977	14.3362
1978	13.9605
1979	14.161
1980	16.6129
1982	12.9745
1984	12.4381
1985	11.0654
1986	10.8608
1987	10.2324
1988	11.189
1991	10.4957