Year	Per 100,000 People
1968	4.0945
1969	3.4397
1978	1.9515
1979	2.1902
1980	1.8841
1981	2.1667
1982	2.1984
1983	1.8683
1984	1.8894
1985	1.5974
1986	1.6993
1987	1.7591
1988	1.6747
1989	1.828
1990	1.7901