Year	Cases per 100,000
1990	8.61
1991	8.68
1992	8.75
1993	8.82
1994	8.89
1995	8.97
1996	9.06
1997	9.15
1998	9.25
1999	9.34
2000	9.45
2001	9.51
2002	9.57
2003	9.64
2004	9.7
2005	9.78
2006	9.75
2007	9.71
2008	9.69
2009	9.66
2010	9.64
2011	9.61
2012	9.59
2013	9.57
2014	9.56
2015	9.54
2016	9.53