Year	Cases per 100,000
1990	23.04
1991	23.28
1992	23.66
1993	23.93
1994	24.48
1995	25.3
1996	25.87
1997	27.14
1998	28.36
1999	27.06
2000	26.73
2001	26.38
2002	25.64
2003	25.08
2004	25.04
2005	25.14
2006	25.02
2007	25.33
2008	25.7
2009	25.82
2010	26.23
2011	26.68
2012	26.83
2013	26.89
2014	27.19
2015	27.35
2016	27.51