Year	Cases per 100,000
1990	7.42
1991	7.34
1992	7.26
1993	7.19
1994	7.11
1995	7.05
1996	6.9
1997	6.76
1998	6.63
1999	6.5
2000	6.38
2001	6.33
2002	6.3
2003	6.26
2004	6.22
2005	6.19
2006	6.12
2007	6.06
2008	5.99
2009	5.93
2010	5.87
2011	5.89
2012	5.91
2013	5.93
2014	5.96
2015	5.98
2016	6.01