Year	Cases per 100,000
1990	8.28
1991	8.25
1992	8.22
1993	8.2
1994	8.18
1995	8.16
1996	8.12
1997	8.09
1998	8.06
1999	8.02
2000	8
2001	7.97
2002	7.95
2003	7.93
2004	7.91
2005	7.9
2006	7.89
2007	7.87
2008	7.86
2009	7.85
2010	7.84
2011	7.84
2012	7.84
2013	7.84
2014	7.85
2015	7.85
2016	7.86