Year	Cases per 100,000
1990	11.89
1991	12.28
1992	12.68
1993	13.11
1994	13.55
1995	14.02
1996	14.51
1997	15.02
1998	15.56
1999	16.12
2000	16.72
2001	17.15
2002	17.61
2003	18.08
2004	18.56
2005	19.08
2006	19.46
2007	19.84
2008	20.25
2009	20.66
2010	21.09
2011	21.62
2012	22.16
2013	22.73
2014	23.31
2015	23.91
2016	24.54