Year	Cases per 100,000
1990	29.91
1991	30.32
1992	30.75
1993	31.19
1994	31.64
1995	32.11
1996	32.34
1997	32.59
1998	32.83
1999	33.08
2000	33.35
2001	33.2
2002	33.07
2003	32.95
2004	32.83
2005	32.73
2006	32.67
2007	32.6
2008	32.54
2009	32.49
2010	32.45
2011	32.63
2012	32.83
2013	33.04
2014	33.24
2015	33.45
2016	33.68