Year	Cases per 100,000
1990	27.53
1991	28.7
1992	29.75
1993	30.67
1994	31.49
1995	32.39
1996	32.09
1997	31.65
1998	31.28
1999	30.79
2000	30.46
2001	30.65
2002	30.74
2003	31.03
2004	31.27
2005	31.66
2006	30.45
2007	29.45
2008	28.54
2009	27.72
2010	26.88
2011	25.82
2012	24.99
2013	24.54
2014	24.33
2015	24.12
2016	23.93