Year	Cases per 100,000
1990	15.37
1991	15.7
1992	16.05
1993	16.42
1994	16.81
1995	17.23
1996	18.12
1997	19.09
1998	20.14
1999	21.29
2000	22.55
2001	23.25
2002	23.99
2003	24.76
2004	25.56
2005	26.41
2006	26.41
2007	26.4
2008	26.4
2009	26.4
2010	26.42
2011	26.42
2012	26.43
2013	26.45
2014	26.46
2015	26.48
2016	26.51