Year	Cases per 100,000
1990	6.64
1991	6.68
1992	6.72
1993	6.76
1994	6.8
1995	6.84
1996	6.88
1997	6.92
1998	6.96
1999	7.01
2000	7.06
2001	7.11
2002	7.17
2003	7.23
2004	7.29
2005	7.36
2006	7.41
2007	7.46
2008	7.51
2009	7.56
2010	7.62
2011	7.65
2012	7.68
2013	7.71
2014	7.75
2015	7.78
2016	7.82