Year	Cases per 100,000
1990	60.23
1991	60.56
1992	60.91
1993	61.26
1994	61.62
1995	61.99
1996	61.32
1997	60.67
1998	60.03
1999	59.4
2000	58.78
2001	57.92
2002	57.08
2003	56.26
2004	55.46
2005	54.68
2006	53.53
2007	52.41
2008	51.33
2009	50.27
2010	49.24
2011	48.98
2012	48.73
2013	48.49
2014	48.25
2015	48.01
2016	47.79