Year	Cases per 100,000
1990	10.45
1991	10.71
1992	10.98
1993	11.26
1994	11.56
1995	11.86
1996	12.46
1997	13.1
1998	13.78
1999	14.5
2000	15.26
2001	15.7
2002	16.15
2003	16.63
2004	17.11
2005	17.62
2006	18.27
2007	18.95
2008	19.66
2009	20.39
2010	21.17
2011	21.6
2012	22.05
2013	22.51
2014	22.99
2015	23.47
2016	23.98