Year	Cases per 100,000
1990	4.53
1991	4.68
1992	4.85
1993	5.02
1994	5.2
1995	5.4
1996	5.31
1997	5.24
1998	5.16
1999	5.09
2000	5.03
2001	5.17
2002	5.32
2003	5.48
2004	5.64
2005	5.82
2006	6.06
2007	6.3
2008	6.56
2009	6.83
2010	7.12
2011	7.23
2012	7.34
2013	7.45
2014	7.57
2015	7.69
2016	7.82