Year	Cases per 100,000
1990	31.64
1991	31.87
1992	31.96
1993	31.81
1994	31.64
1995	31.64
1996	32.07
1997	32.5
1998	32.47
1999	32.36
2000	31.98
2001	31.73
2002	31.5
2003	31.18
2004	30.87
2005	30.48
2006	30.73
2007	30.89
2008	30.91
2009	31.17
2010	31.25
2011	31.1
2012	30.97
2013	31.16
2014	30.91
2015	30.22
2016	29.69