Year	Per 100,000 People
1953	3.362
1955	3.4312
1957	3.1819
1958	3.1587
1959	3.2852
1961	2.9452
1966	2.8374
1968	5.5641
1971	6.2561
1973	11.6463
1975	3.1002
1978	2.8617
1979	2.2555
1981	4.8175
1984	2.1191
1986	1.8561
1987	2.1297
1988	1.7555
1993	1.6653
1997	3.2863
2000	1.4769
2001	1.454
2004	1.7161
2006	1.5926
2007	2.9008
2009	1.5658
2010	1.5382
2012	1.5557
2015	1.4382