Year	Cases per 100,000
1990	52.79
1991	53.79
1992	54.81
1993	55.86
1994	56.93
1995	58.03
1996	58.56
1997	59.1
1998	59.65
1999	60.21
2000	60.78
2001	60.91
2002	61.06
2003	61.2
2004	61.35
2005	61.51
2006	61.48
2007	61.45
2008	61.42
2009	61.4
2010	61.38
2011	60.91
2012	60.44
2013	59.99
2014	59.54
2015	59.1
2016	58.67
