Year	Cases per 100,000
1990	7.53
1991	7.63
1992	7.73
1993	7.84
1994	7.95
1995	8.06
1996	8.19
1997	8.32
1998	8.45
1999	8.58
2000	8.72
2001	8.74
2002	8.77
2003	8.8
2004	8.82
2005	8.85
2006	8.88
2007	8.92
2008	8.96
2009	8.99
2010	9.03
2011	9.05
2012	9.08
2013	9.11
2014	9.14
2015	9.16
2016	9.19