Year	Cases per 100,000
1980	6.05273
1981	7.56545
1982	6.03818
1983	6.10091
1984	5.82364
1985	4.71636
1986	5.56909
1987	8.65182
1988	6.43455
1989	7.98727
1990	6.33
1991	6.21
1992	6.19
1993	6.15
1994	5.99
1995	6.06
1996	6.11
1997	6.1
1998	5.8
1999	5.91
2000	5.95
2001	5.67
2002	5.51
2003	5.52
2004	5.41
2005	5.28
2006	4.97
2007	4.83
2008	4.71
2009	4.64
2010	4.58
2011	4.65
2012	4.67
2013	4.76
2014	4.82
2015	4.9
2016	4.98