Year	Cases per 100,000
1990	69.1
1991	69.32
1992	70.03
1993	71.86
1994	74.64
1995	78.16
1996	79.1
1997	79.15
1998	78.9
1999	77.95
2000	76.81
2001	76.67
2002	77.93
2003	77.88
2004	77.31
2005	76.65
2006	74.64
2007	71.94
2008	69.58
2009	68
2010	66.64
2011	65.87
2012	64.33
2013	62.17
2014	59.75
2015	60.39
2016	60.98