Year	Cases per 100,000
1980	4.47091
1981	4.81182
1982	6.07273
1983	5.59364
1984	5.74455
1985	4.80545
1986	5.67636
1987	7.26727
1988	6.54818
1989	8.00909
1990	7.57
1991	7.69
1992	7.82
1993	7.95
1994	8.08
1995	8.22
1996	8.02
1997	7.82
1998	7.64
1999	7.46
2000	7.29
2001	7.18
2002	7.07
2003	6.97
2004	6.87
2005	6.78
2006	6.8
2007	6.82
2008	6.85
2009	6.87
2010	6.9
2011	6.96
2012	7.02
2013	7.09
2014	7.15
2015	7.22
2016	7.29