Year	Cases per 100,000
1990	79.64
1991	81.36
1992	83.21
1993	85.18
1994	87.3
1995	89.57
1996	90.33
1997	91.12
1998	91.93
1999	92.77
2000	93.64
2001	94.49
2002	95.38
2003	96.29
2004	97.23
2005	98.21
2006	98.59
2007	98.99
2008	99.42
2009	99.86
2010	100.32
2011	99.74
2012	99.17
2013	98.62
2014	98.08
2015	97.56
2016	97.05