Year	Cases per 100,000
1990	50.11
1991	52.57
1992	55.21
1993	58.06
1994	61.13
1995	64.45
1996	61.99
1997	59.71
1998	57.57
1999	55.57
2000	53.71
2001	53.64
2002	53.58
2003	53.53
2004	53.48
2005	53.44
2006	52.34
2007	51.3
2008	50.3
2009	49.36
2010	48.47
2011	48.19
2012	47.92
2013	47.66
2014	47.39
2015	47.14
2016	46.89