Year	Cases per 100,000
1990	7.15
1991	7.23
1992	7.31
1993	7.4
1994	7.48
1995	7.57
1996	7.69
1997	7.81
1998	7.94
1999	8.06
2000	8.2
2001	8.3
2002	8.41
2003	8.53
2004	8.64
2005	8.76
2006	8.88
2007	8.99
2008	9.11
2009	9.23
2010	9.36
2011	9.51
2012	9.67
2013	9.82
2014	9.99
2015	10.15
2016	10.32