Year	Cases per 100,000
1990	56.14
1991	57.27
1992	58.21
1993	58.79
1994	59.18
1995	59.84
1996	59.79
1997	59.62
1998	59.38
1999	59.58
2000	59.58
2001	59.45
2002	59.46
2003	59.57
2004	60.1
2005	60.77
2006	61
2007	61.44
2008	61.59
2009	61.12
2010	61.04
2011	60.59
2012	59.8
2013	58.75
2014	56.91
2015	55.99
2016	55.2