Year	Cases per 100,000
1990	5.33
1991	5.43
1992	5.53
1993	5.64
1994	5.75
1995	5.86
1996	5.95
1997	6.04
1998	6.14
1999	6.24
2000	6.35
2001	6.48
2002	6.62
2003	6.77
2004	6.91
2005	7.07
2006	7.21
2007	7.35
2008	7.5
2009	7.65
2010	7.8
2011	7.91
2012	8.02
2013	8.13
2014	8.24
2015	8.36
2016	8.48