Year	Cases per 100,000
1990	6.56
1991	6.54
1992	6.52
1993	6.5
1994	6.48
1995	6.47
1996	6.5
1997	6.52
1998	6.55
1999	6.58
2000	6.61
2001	6.69
2002	6.77
2003	6.85
2004	6.93
2005	7.01
2006	7.23
2007	7.45
2008	7.68
2009	7.92
2010	8.16
2011	8.22
2012	8.28
2013	8.33
2014	8.39
2015	8.45
2016	8.51