Year	Cases per 100,000
1990	24.69
1991	24.54
1992	24.4
1993	24.26
1994	24.13
1995	24
1996	23.7
1997	23.4
1998	23.12
1999	22.84
2000	22.57
2001	22.09
2002	21.63
2003	21.19
2004	20.76
2005	20.36
2006	20.67
2007	20.97
2008	21.29
2009	21.62
2010	21.97
2011	22.59
2012	23.25
2013	23.92
2014	24.62
2015	25.34
2016	26.09