Year	Cases per 100,000
1990	5.92
1991	5.96
1992	6
1993	6.04
1994	6.08
1995	6.13
1996	6.16
1997	6.19
1998	6.22
1999	6.26
2000	6.3
2001	6.32
2002	6.34
2003	6.37
2004	6.4
2005	6.43
2006	6.43
2007	6.42
2008	6.43
2009	6.43
2010	6.44
2011	6.44
2012	6.45
2013	6.47
2014	6.48
2015	6.49
2016	6.51