Year	Cases per 100,000
1990	8.07
1991	8.08
1992	8.1
1993	8.11
1994	8.13
1995	8.15
1996	8.22
1997	8.28
1998	8.35
1999	8.42
2000	8.49
2001	8.59
2002	8.7
2003	8.8
2004	8.91
2005	9.03
2006	9.07
2007	9.11
2008	9.15
2009	9.19
2010	9.24
2011	9.24
2012	9.25
2013	9.25
2014	9.26
2015	9.27
2016	9.28