Year	Cases per 100,000
1990	73.57
1991	72.86
1992	72.56
1993	72.08
1994	71.79
1995	71.59
1996	69.74
1997	68.54
1998	67.05
1999	64.56
2000	62.8
2001	60.93
2002	59.78
2003	58.84
2004	57.67
2005	56.98
2006	55.32
2007	54.02
2008	53.69
2009	52.94
2010	52.91
2011	52.94
2012	52.52
2013	52.95
2014	53.2
2015	53.45
2016	53.68