Year	Cases per 100,000
1990	50.7
1991	51.55
1992	52.44
1993	53.35
1994	54.28
1995	55.25
1996	55.75
1997	56.29
1998	56.83
1999	57.38
2000	57.97
2001	57.96
2002	57.98
2003	58
2004	58.02
2005	58.08
2006	58.03
2007	57.94
2008	57.89
2009	57.83
2010	57.81
2011	57.67
2012	57.55
2013	57.43
2014	57.32
2015	57.2
2016	57.12