Year	Cases per 100,000
1990	6.77
1991	6.88
1992	6.96
1993	7.14
1994	7.3
1995	7.49
1996	7.67
1997	7.84
1998	8
1999	8.19
2000	8.34
2001	8.47
2002	8.59
2003	8.71
2004	8.81
2005	8.94
2006	9.04
2007	8.98
2008	8.91
2009	8.83
2010	8.75
2011	8.65
2012	8.54
2013	8.43
2014	8.33
2015	8.22
2016	8.02