Year	Cases per 100,000
1990	24.15
1991	24.17
1992	24.21
1993	24.25
1994	24.3
1995	24.36
1996	24.3
1997	24.26
1998	24.22
1999	24.18
2000	24.16
2001	24.36
2002	24.58
2003	24.81
2004	25.04
2005	25.29
2006	25.57
2007	25.86
2008	26.16
2009	26.46
2010	26.79
2011	27.22
2012	27.66
2013	28.12
2014	28.59
2015	29.07
2016	29.58