Year	Per 100,000 People
1981	4.25
1982	7.5213
1985	4.1149
1986	4.6917
1987	6.9611
1988	5.7649
1989	11.7627
1990	12.0458
1991	6.8926
1992	4.7076
1993	8.0307
1994	14.6767
1995	16.7523
1996	13.7093
1997	0.3293
2001	0.5397
2004	0.3871
2008	0.5332
2009	1.0569
2010	0.4382
2011	1.6388
2012	0.4256
2014	1.5081