Year	Cases per 100,000
1990	49.3
1991	49.52
1992	51.28
1993	52.44
1994	53.56
1995	53.84
1996	53.37
1997	53.18
1998	52.46
1999	51.39
2000	51.14
2001	51.63
2002	52.55
2003	53.99
2004	55.4
2005	57.73
2006	58.51
2007	58.68
2008	58.62
2009	58.03
2010	57.76
2011	56.71
2012	55.77
2013	54.91
2014	53.43
2015	52.49
2016	51.74