Year	Cases per 100,000
1990	18.38
1991	18.46
1992	18.6
1993	18.7
1994	18.89
1995	19.08
1996	19.19
1997	19.32
1998	19.54
1999	19.2
2000	19.33
2001	19.13
2002	19.09
2003	19.42
2004	19.99
2005	20.46
2006	21.12
2007	21.31
2008	21.51
2009	21.96
2010	22.55
2011	23.21
2012	24.02
2013	25.05
2014	26.34
2015	27.98
2016	29.83