Year	Cases per 100,000
1990	14.52
1991	14.47
1992	14.5
1993	14.59
1994	14.7
1995	14.86
1996	14.76
1997	14.82
1998	15.12
1999	15.7
2000	16.3
2001	15.92
2002	15.69
2003	15.58
2004	15.29
2005	15.21
2006	15.21
2007	14.88
2008	14.77
2009	14.86
2010	14.7
2011	14.54
2012	14.7
2013	15.03
2014	15.43
2015	15.6
2016	15.39