Year	Cases per 100,000
1990	13.55
1991	13.5
1992	13.46
1993	13.41
1994	13.37
1995	13.33
1996	12.97
1997	12.63
1998	12.31
1999	12
2000	11.71
2001	11.89
2002	12.08
2003	12.28
2004	12.47
2005	12.68
2006	13.15
2007	13.64
2008	14.15
2009	14.69
2010	15.25
2011	15.32
2012	15.39
2013	15.47
2014	15.55
2015	15.63
2016	15.72