Year	Cases per 100,000
1983	7.21125
1984	6.9725
1985	8.31375
1986	6.555
1987	8.46625
1988	8.9775
1989	9.17875
1990	10.48
1991	10.25
1992	10.08
1993	9.78
1994	9.64
1995	9.32
1996	9.2
1997	8.93
1998	8.68
1999	8.26
2000	7.99
2001	7.99
2002	7.82
2003	7.53
2004	7.41
2005	7.19
2006	6.75
2007	6.45
2008	6.36
2009	6.2
2010	6.14
2011	6.2
2012	6.27
2013	6.34
2014	6.39
2015	6.51
2016	6.58