Year	Cases per 100,000
1990	56.68
1991	55.72
1992	54.96
1993	54
1994	52.48
1995	50.86
1996	48.85
1997	47.22
1998	44.97
1999	42.98
2000	41.04
2001	39.35
2002	38.49
2003	37.37
2004	36.69
2005	36.16
2006	35.51
2007	35.37
2008	34.94
2009	34.56
2010	34.25
2011	33.93
2012	33.55
2013	33.2
2014	32.89
2015	32.59
2016	32.33