Year	Cases per 100,000
1990	8.38
1991	8.34
1992	8.31
1993	8.27
1994	8.23
1995	8.2
1996	8.12
1997	8.05
1998	7.98
1999	7.92
2000	7.85
2001	7.8
2002	7.76
2003	7.72
2004	7.67
2005	7.64
2006	7.62
2007	7.6
2008	7.58
2009	7.56
2010	7.55
2011	7.56
2012	7.57
2013	7.59
2014	7.6
2015	7.62
2016	7.64