Year	Cases per 100,000
1990	70.31
1991	71.02
1992	71.76
1993	72.52
1994	73.31
1995	74.13
1996	74.27
1997	74.44
1998	74.63
1999	74.85
2000	75.09
2001	73.4
2002	71.76
2003	70.16
2004	68.6
2005	67.08
2006	65.86
2007	64.66
2008	63.5
2009	62.36
2010	61.27
2011	59.92
2012	58.62
2013	57.36
2014	56.14
2015	54.96
2016	53.82