Year	Cases per 100,000
1990	32.78
1991	30.22
1992	29.92
1993	30.61
1994	30.58
1995	30.22
1996	30.11
1997	30.49
1998	31.21
1999	31.93
2000	32.59
2001	32.82
2002	32.92
2003	33.43
2004	32.9
2005	32.12
2006	32.48
2007	32.47
2008	32.47
2009	32.01
2010	31.91
2011	31.92
2012	31.81
2013	31.28
2014	31.22
2015	30.9
2016	30.58