Year	Cases per 100,000
1990	34.09
1991	34.27
1992	34.5
1993	34.76
1994	35.05
1995	35.38
1996	34.79
1997	34.24
1998	33.73
1999	33.26
2000	32.82
2001	32.04
2002	31.3
2003	30.59
2004	29.92
2005	29.28
2006	29.02
2007	28.76
2008	28.53
2009	28.31
2010	28.12
2011	28.3
2012	28.49
2013	28.69
2014	28.89
2015	29.09
2016	29.3