Year	Cases per 100,000
1990	5.22
1991	5.23
1992	5.21
1993	5.3
1994	5.37
1995	5.41
1996	5.58
1997	5.57
1998	5.57
1999	5.66
2000	5.86
2001	6.04
2002	6.18
2003	6.37
2004	6.5
2005	6.6
2006	6.54
2007	6.47
2008	6.39
2009	6.32
2010	6.29
2011	6.35
2012	6.4
2013	6.42
2014	6.42
2015	6.41
2016	6.41