Year	Cases per 100,000
1990	4.72
1991	4.76
1992	4.8
1993	4.84
1994	4.88
1995	4.93
1996	4.99
1997	5.06
1998	5.13
1999	5.2
2000	5.28
2001	5.28
2002	5.28
2003	5.29
2004	5.29
2005	5.3
2006	5.34
2007	5.38
2008	5.42
2009	5.46
2010	5.5
2011	5.53
2012	5.56
2013	5.6
2014	5.63
2015	5.66
2016	5.7