Year	Cases per 100,000
1990	7.97
1991	8.02
1992	8.07
1993	8.12
1994	8.18
1995	8.23
1996	8.27
1997	8.31
1998	8.35
1999	8.39
2000	8.43
2001	8.49
2002	8.56
2003	8.63
2004	8.7
2005	8.77
2006	8.85
2007	8.92
2008	9
2009	9.08
2010	9.16
2011	9.24
2012	9.32
2013	9.4
2014	9.49
2015	9.57
2016	9.66