Year	Cases per 100,000
1990	4.59
1991	4.63
1992	4.68
1993	4.72
1994	4.77
1995	4.82
1996	4.86
1997	4.9
1998	4.94
1999	4.98
2000	5.03
2001	5.13
2002	5.23
2003	5.34
2004	5.45
2005	5.57
2006	5.66
2007	5.75
2008	5.85
2009	5.96
2010	6.06
2011	6.06
2012	6.06
2013	6.07
2014	6.07
2015	6.07
2016	6.08