Year	Cases per 100,000
1990	23.81
1991	23.85
1992	23.84
1993	23.9
1994	24.02
1995	24.18
1996	24.4
1997	24.61
1998	24.85
1999	24.9
2000	25
2001	25.08
2002	25.45
2003	25.46
2004	25.4
2005	26.09
2006	26.15
2007	25.7
2008	25.35
2009	25.55
2010	25.92
2011	24.95
2012	24.7
2013	24.62
2014	25.25
2015	25.27
2016	24.11