Year	Cases per 100,000
1990	9.52
1991	9.51
1992	9.5
1993	9.49
1994	9.48
1995	9.47
1996	9.44
1997	9.41
1998	9.39
1999	9.36
2000	9.34
2001	9.32
2002	9.31
2003	9.3
2004	9.28
2005	9.27
2006	9.27
2007	9.27
2008	9.27
2009	9.27
2010	9.27
2011	9.28
2012	9.28
2013	9.29
2014	9.3
2015	9.31
2016	9.32