Year	Cases per 100,000
1990	6.65
1991	6.63
1992	6.62
1993	6.61
1994	6.6
1995	6.6
1996	6.64
1997	6.69
1998	6.74
1999	6.79
2000	6.85
2001	6.85
2002	6.86
2003	6.86
2004	6.87
2005	6.89
2006	6.9
2007	6.92
2008	6.93
2009	6.95
2010	6.98
2011	7.04
2012	7.1
2013	7.17
2014	7.23
2015	7.3
2016	7.37