Year	Cases per 100,000
1990	5.75
1991	5.92
1992	6.1
1993	6.29
1994	6.48
1995	6.68
1996	6.99
1997	7.32
1998	7.67
1999	8.04
2000	8.42
2001	8.52
2002	8.62
2003	8.73
2004	8.83
2005	8.94
2006	8.98
2007	9.02
2008	9.07
2009	9.11
2010	9.16
2011	9.28
2012	9.4
2013	9.53
2014	9.66
2015	9.79
2016	9.92