Year	Cases per 100,000
1990	2.88
1991	2.87
1992	2.85
1993	2.84
1994	2.84
1995	2.85
1996	2.86
1997	2.87
1998	2.89
1999	2.89
2000	2.88
2001	2.9
2002	2.91
2003	2.92
2004	2.93
2005	2.94
2006	2.95
2007	2.97
2008	2.98
2009	3
2010	3.02
2011	3.03
2012	3.04
2013	3.05
2014	3.07
2015	3.09
2016	3.11