Year	Cases per 100,000
1990	67.38
1991	67.18
1992	67.01
1993	66.84
1994	66.67
1995	66.53
1996	65.56
1997	64.63
1998	63.73
1999	62.87
2000	62.03
2001	60.9
2002	59.81
2003	58.76
2004	57.73
2005	56.74
2006	56.22
2007	55.72
2008	55.25
2009	54.79
2010	54.35
2011	54.34
2012	54.34
2013	54.34
2014	54.35
2015	54.35
2016	54.36