Year	Cases per 100,000
1990	23.14
1991	23.28
1992	23.43
1993	23.58
1994	23.73
1995	23.9
1996	24.06
1997	24.23
1998	24.41
1999	24.58
2000	24.78
2001	25.29
2002	25.83
2003	26.39
2004	26.96
2005	27.56
2006	28.24
2007	28.92
2008	29.64
2009	30.37
2010	31.14
2011	30.92
2012	30.72
2013	30.52
2014	30.33
2015	30.13
2016	29.96