Year	Cases per 100,000
1990	13.21
1991	13.52
1992	13.84
1993	14.18
1994	14.52
1995	14.89
1996	15.24
1997	15.6
1998	15.98
1999	16.37
2000	16.8
2001	16.97
2002	17.14
2003	17.32
2004	17.49
2005	17.67
2006	17.82
2007	17.97
2008	18.13
2009	18.29
2010	18.45
2011	18.58
2012	18.72
2013	18.86
2014	19
2015	19.15
2016	19.3