Year	Cases per 100,000
1990	58.71
1991	57.18
1992	55.48
1993	56.61
1994	58.48
1995	59.87
1996	61.87
1997	60.51
1998	59.8
1999	58.88
2000	57.2
2001	54.71
2002	52.23
2003	51.33
2004	50.81
2005	50.32
2006	49.38
2007	48.81
2008	48.44
2009	47
2010	46.33
2011	45.29
2012	44.04
2013	43.37
2014	42.69
2015	42.13
2016	41.39