Year	Cases per 100,000
1990	14.03
1991	14.42
1992	14.82
1993	15.24
1994	15.67
1995	16.12
1996	16.13
1997	16.15
1998	16.16
1999	16.18
2000	16.21
2001	16.27
2002	16.34
2003	16.42
2004	16.49
2005	16.57
2006	16.95
2007	17.34
2008	17.75
2009	18.16
2010	18.6
2011	18.92
2012	19.26
2013	19.6
2014	19.94
2015	20.3
2016	20.66