Year	Cases per 100,000
1990	5.54
1991	5.61
1992	5.68
1993	5.75
1994	5.82
1995	5.9
1996	5.98
1997	6.07
1998	6.16
1999	6.25
2000	6.34
2001	6.43
2002	6.53
2003	6.62
2004	6.72
2005	6.82
2006	6.88
2007	6.94
2008	7.01
2009	7.07
2010	7.14
2011	7.21
2012	7.28
2013	7.36
2014	7.43
2015	7.51
2016	7.58