Year	Per 100,000 People
1968	1.5436
1971	3.0142
1980	1.4473
1981	1.2677
1984	2.4213
1985	1.7227
1986	3.4739
1988	1.1229
1989	2.4854
1990	1.457
1991	3.6572
1992	1.2084
1994	3.9773
1996	4.0918
1997	0.8537
1999	2.3861
2005	2.7825
2006	1.447
2007	1.2899
2008	1.3402
2009	1.0789
2010	4.4601
2015	2.3289