Year	Cases per 100,000
1990	9.5
1991	9.65
1992	9.8
1993	9.96
1994	10.13
1995	10.3
1996	10.85
1997	11.44
1998	12.06
1999	12.73
2000	13.43
2001	14.02
2002	14.63
2003	15.27
2004	15.95
2005	16.67
2006	16.84
2007	17.02
2008	17.21
2009	17.4
2010	17.6
2011	18.14
2012	18.7
2013	19.27
2014	19.86
2015	20.47
2016	21.11