Year	Cases per 100,000
1990	40.99
1991	40.56
1992	40.3
1993	40.08
1994	39.87
1995	39.6
1996	39.25
1997	38.84
1998	38.5
1999	38.14
2000	37.74
2001	37.42
2002	36.21
2003	35.68
2004	34.54
2005	33.7
2006	33.43
2007	33.4
2008	33.48
2009	33.68
2010	33.74
2011	33.69
2012	33.5
2013	33.38
2014	33.23
2015	33.06
2016	32.84