Year	Cases per 100,000
1990	5.26
1991	5.34
1992	5.44
1993	5.56
1994	5.71
1995	5.95
1996	5.53
1997	5.2
1998	4.9
1999	4.63
2000	4.47
2001	4.37
2002	4.34
2003	4.33
2004	4.32
2005	4.33
2006	4.32
2007	4.55
2008	4.72
2009	4.66
2010	4.74
2011	4.75
2012	4.75
2013	4.78
2014	4.78
2015	4.88
2016	4.96