Year	Cases per 100,000
1990	71.11
1991	71.61
1992	72.13
1993	72.66
1994	73.2
1995	73.77
1996	73.47
1997	73.2
1998	72.94
1999	72.71
2000	72.5
2001	71.36
2002	70.26
2003	69.18
2004	68.13
2005	67.11
2006	65.99
2007	64.89
2008	63.83
2009	62.81
2010	61.82
2011	61.14
2012	60.48
2013	59.83
2014	59.2
2015	58.57
2016	57.97