Year	Cases per 100,000
1990	12.25
1991	12.58
1992	12.92
1993	13.28
1994	13.66
1995	14.06
1996	14.44
1997	14.85
1998	15.27
1999	15.71
2000	16.17
2001	16.72
2002	17.32
2003	17.95
2004	18.61
2005	19.32
2006	19.05
2007	18.79
2008	18.56
2009	18.33
2010	18.12
2011	18.36
2012	18.61
2013	18.86
2014	19.12
2015	19.38
2016	19.65