Year	Cases per 100,000
1990	14.92
1991	15.05
1992	15.21
1993	15.37
1994	15.52
1995	15.71
1996	15.77
1997	15.85
1998	15.93
1999	16.01
2000	16.11
2001	16.07
2002	16.04
2003	16.02
2004	15.99
2005	15.99
2006	16.05
2007	16.1
2008	16.16
2009	16.23
2010	16.32
2011	16.27
2012	16.25
2013	16.22
2014	16.19
2015	16.17
2016	16.16