Year	Cases per 100,000
1990	21.4
1991	21.34
1992	21.28
1993	21.36
1994	21.4
1995	21.52
1996	21.94
1997	22.36
1998	22.77
1999	23.05
2000	23.49
2001	23.91
2002	24.41
2003	24.79
2004	25.34
2005	26.06
2006	25.96
2007	26.08
2008	26.17
2009	26.31
2010	26.47
2011	26.22
2012	26.1
2013	26.01
2014	26.06
2015	26
2016	25.84