Year	Per 100,000 People
1981	7.5007
1982	6.349
1985	7.0638
1986	5.3689
1987	7.4015
1988	6.904
1989	7.4928
1990	7.9225
1991	7.127
1992	5.3181
1993	6.5144
1994	4.829
1995	7.3885
1996	4.4168
1997	4.5383
1998	4.2207
1999	4.6745
2000	4.3898
2001	3.3897
2002	4.7005
2003	3.4639
2004	3.0903
2005	3.3976
2006	3.7903
2007	4.4058
2008	3.7323
2009	3.4539
2010	3.8372
2011	3.7937
2012	4.4703
2013	3.4413
2014	3.6752
2015	3.1705