Year	Cases per 100,000
1990	50.81
1991	50.73
1992	50.67
1993	50.61
1994	50.55
1995	50.5
1996	50.5
1997	50.52
1998	50.53
1999	50.55
2000	50.57
2001	50.78
2002	50.99
2003	51.21
2004	51.43
2005	51.67
2006	51.82
2007	51.97
2008	52.12
2009	52.28
2010	52.44
2011	52.96
2012	53.48
2013	54.01
2014	54.55
2015	55.09
2016	55.65