Year	Cases per 100,000
1990	33.61
1991	32.71
1992	32.07
1993	31.82
1994	30.19
1995	30.1
1996	27.01
1997	28.93
1998	28.02
1999	27.7
2000	28.82
2001	28.85
2002	29.55
2003	28.37
2004	25.5
2005	25.01
2006	23.75
2007	24.01
2008	23.8
2009	24.81
2010	24.82
2011	24.61
2012	25.92
2013	26.64
2014	26.09
2015	25.82
2016	25.91