Year	Cases per 100,000
1990	32.73
1991	32.99
1992	33.26
1993	33.54
1994	33.81
1995	34.1
1996	33.75
1997	33.42
1998	33.09
1999	32.76
2000	32.44
2001	32.32
2002	32.21
2003	32.1
2004	31.99
2005	31.88
2006	31.61
2007	31.33
2008	31.07
2009	30.81
2010	30.55
2011	30.45
2012	30.36
2013	30.27
2014	30.18
2015	30.09
2016	30