Year	Cases per 100,000
1990	6.89
1991	6.95
1992	7.02
1993	7.09
1994	7.16
1995	7.24
1996	7.3
1997	7.36
1998	7.43
1999	7.5
2000	7.57
2001	7.61
2002	7.66
2003	7.71
2004	7.77
2005	7.83
2006	7.94
2007	8.06
2008	8.19
2009	8.32
2010	8.47
2011	8.62
2012	8.78
2013	8.95
2014	9.12
2015	9.31
2016	9.5