Year	Cases per 100,000
1990	12.31
1991	12.55
1992	12.8
1993	13.06
1994	13.32
1995	13.59
1996	13.9
1997	14.23
1998	14.57
1999	14.92
2000	15.28
2001	15.66
2002	16.06
2003	16.47
2004	16.89
2005	17.32
2006	17.61
2007	17.91
2008	18.21
2009	18.52
2010	18.83
2011	19.17
2012	19.53
2013	19.89
2014	20.26
2015	20.64
2016	21.04