Year	Cases per 100,000
1990	25.1
1991	25.88
1992	26.85
1993	27.18
1994	27.11
1995	27.07
1996	26.42
1997	26.27
1998	25.83
1999	25.51
2000	24.92
2001	24.92
2002	24.85
2003	24.65
2004	23.96
2005	24.27
2006	24.21
2007	24.2
2008	24.22
2009	24.5
2010	24.68
2011	24.58
2012	24.49
2013	24.87
2014	25.49
2015	25.4
2016	25.35