Year	Cases per 100,000
1990	4.99
1991	5.01
1992	5.03
1993	5.05
1994	5.08
1995	5.11
1996	5.15
1997	5.19
1998	5.24
1999	5.29
2000	5.34
2001	5.5
2002	5.67
2003	5.85
2004	6.03
2005	6.22
2006	6.29
2007	6.37
2008	6.45
2009	6.52
2010	6.61
2011	6.66
2012	6.72
2013	6.77
2014	6.83
2015	6.89
2016	6.95