Year	Cases per 100,000
1983	8.1425
1984	8.885
1985	9.4275
1986	9.99
1987	11.2425
1988	11.925
1989	12.9775
1990	12.87
1991	13.43
1992	13.83
1993	14.34
1994	14.91
1995	15.27
1996	15.76
1997	16.03
1998	16.6
1999	17.15
2000	17.69
2001	18.11
2002	18.44
2003	18.79
2004	19.34
2005	19.78
2006	20.31
2007	20.86
2008	21.29
2009	21.77
2010	22.2
2011	22.17
2012	22.05
2013	21.74
2014	21.18
2015	20.87
2016	20.67