Year	Cases per 100,000
1990	5.74
1991	5.92
1992	6.14
1993	6.29
1994	6.52
1995	6.75
1996	6.71
1997	7.36
1998	7.63
1999	7.74
2000	8.03
2001	8.1
2002	8.1
2003	8.21
2004	8.18
2005	8.42
2006	8.54
2007	8.51
2008	8.44
2009	8.35
2010	8.28
2011	8.41
2012	8.59
2013	8.74
2014	8.74
2015	8.94
2016	9.09