Year	Cases per 100,000
1990	7.79
1991	7.78
1992	7.77
1993	7.76
1994	7.76
1995	7.75
1996	7.77
1997	7.79
1998	7.8
1999	7.82
2000	7.85
2001	7.84
2002	7.85
2003	7.85
2004	7.85
2005	7.86
2006	7.85
2007	7.83
2008	7.82
2009	7.81
2010	7.81
2011	7.79
2012	7.77
2013	7.76
2014	7.74
2015	7.73
2016	7.72