Year	Cases per 100,000
1990	4.39
1991	4.53
1992	4.68
1993	4.84
1994	5.01
1995	5.18
1996	5.29
1997	5.4
1998	5.52
1999	5.65
2000	5.77
2001	5.82
2002	5.87
2003	5.91
2004	5.96
2005	6.01
2006	6.03
2007	6.05
2008	6.07
2009	6.09
2010	6.11
2011	6.12
2012	6.13
2013	6.14
2014	6.16
2015	6.17
2016	6.19