Year	Cases per 100,000
1990	12.47
1991	12.73
1992	13.01
1993	13.29
1994	13.58
1995	13.88
1996	14.16
1997	14.46
1998	14.76
1999	15.07
2000	15.4
2001	15.42
2002	15.44
2003	15.46
2004	15.49
2005	15.51
2006	15.68
2007	15.84
2008	16
2009	16.17
2010	16.35
2011	16.76
2012	17.19
2013	17.63
2014	18.09
2015	18.55
2016	19.04