Year	Cases per 100,000
1990	43.34
1991	45.73
1992	48.35
1993	51.24
1994	54.41
1995	57.91
1996	56.95
1997	56.07
1998	55.26
1999	54.53
2000	53.85
2001	54.89
2002	55.98
2003	57.1
2004	58.27
2005	59.48
2006	58.9
2007	58.35
2008	57.82
2009	57.32
2010	56.85
2011	56.62
2012	56.39
2013	56.18
2014	55.96
2015	55.75
2016	55.55