Year	Cases per 100,000
1990	43.78
1991	45.4
1992	47.14
1993	48.96
1994	50.89
1995	52.94
1996	52.93
1997	52.96
1998	53.01
1999	53.07
2000	53.18
2001	52.79
2002	52.43
2003	52.08
2004	51.74
2005	51.42
2006	50.59
2007	49.77
2008	48.99
2009	48.22
2010	47.5
2011	47.52
2012	47.56
2013	47.6
2014	47.65
2015	47.69
2016	47.75