Year	Cases per 100,000
1990	24.88
1991	23.58
1992	22.37
1993	27.5
1994	29.58
1995	27.32
1996	27.92
1997	28.2
1998	28.72
1999	29.03
2000	29.81
2001	30.14
2002	31.17
2003	32.43
2004	33.05
2005	34.85
2006	35.6
2007	35.78
2008	38.36
2009	38.79
2010	37.87
2011	38.38
2012	36.84
2013	36.25
2014	32.65
2015	35.23
2016	34.21