Year	Cases per 100,000
1990	88.43
1991	92.3
1992	95.58
1993	95.91
1994	96.34
1995	98.49
1996	91.48
1997	83.44
1998	75.57
1999	74.17
2000	73.17
2001	69.99
2002	67.78
2003	66.75
2004	67.23
2005	67.87
2006	64.77
2007	66.34
2008	66.33
2009	59.01
2010	56.19
2011	54.95
2012	56.26
2013	56.05
2014	53.46
2015	52.92
2016	52.51