Year	Cases per 100,000
1990	11.86
1991	12.19
1992	12.54
1993	12.9
1994	13.27
1995	13.65
1996	13.88
1997	14.12
1998	14.36
1999	14.61
2000	14.86
2001	15
2002	15.15
2003	15.3
2004	15.46
2005	15.62
2006	15.93
2007	16.25
2008	16.58
2009	16.91
2010	17.26
2011	17.43
2012	17.62
2013	17.81
2014	18
2015	18.19
2016	18.39