Year	Cases per 100,000
1990	12.43
1991	12.63
1992	12.84
1993	13.05
1994	13.26
1995	13.49
1996	13.75
1997	14.02
1998	14.29
1999	14.58
2000	14.87
2001	15.13
2002	15.4
2003	15.68
2004	15.97
2005	16.27
2006	16.56
2007	16.84
2008	17.14
2009	17.45
2010	17.78
2011	17.94
2012	18.11
2013	18.29
2014	18.46
2015	18.64
2016	18.83