Year	Cases per 100,000
1990	52.73
1991	55.14
1992	57.71
1993	59.79
1994	63.12
1995	66.46
1996	68.75
1997	70.06
1998	71.29
1999	72.17
2000	72.18
2001	72.14
2002	71.13
2003	70.84
2004	68.02
2005	66.22
2006	64.72
2007	62.92
2008	60.45
2009	58.74
2010	57.12
2011	55.47
2012	53.83
2013	52.12
2014	50.4
2015	49.12
2016	48.17