Year	Cases per 100,000
1990	5.61
1991	5.64
1992	5.67
1993	5.71
1994	5.74
1995	5.78
1996	5.92
1997	6.06
1998	6.2
1999	6.35
2000	6.51
2001	6.56
2002	6.62
2003	6.67
2004	6.73
2005	6.79
2006	6.77
2007	6.75
2008	6.74
2009	6.72
2010	6.71
2011	6.73
2012	6.74
2013	6.76
2014	6.78
2015	6.8
2016	6.82