Year	Cases per 100,000
1990	32.26
1991	32.21
1992	32.67
1993	32.97
1994	34.02
1995	36.08
1996	35.16
1997	35
1998	34.32
1999	33.35
2000	32.86
2001	31.9
2002	30.98
2003	29.82
2004	29.04
2005	28.25
2006	27.81
2007	27.23
2008	26.69
2009	26.17
2010	26.05
2011	25.85
2012	25.76
2013	25.52
2014	25.31
2015	25.1
2016	24.9