Year	Cases per 100,000
1990	22.81
1991	22.9
1992	23.01
1993	23.13
1994	23.25
1995	23.39
1996	23.61
1997	23.86
1998	24.12
1999	24.38
2000	24.67
2001	24.74
2002	24.83
2003	24.92
2004	25.02
2005	25.14
2006	25.04
2007	24.93
2008	24.83
2009	24.74
2010	24.66
2011	24.65
2012	24.64
2013	24.64
2014	24.64
2015	24.65
2016	24.66