Year	Cases per 100,000
1990	46.22
1991	44.68
1992	43.22
1993	41.82
1994	40.46
1995	39.17
1996	39.14
1997	39.14
1998	39.14
1999	39.14
2000	39.16
2001	39.2
2002	39.27
2003	39.34
2004	39.42
2005	39.52
2006	39.7
2007	39.86
2008	40.05
2009	40.24
2010	40.46
2011	40.64
2012	40.85
2013	41.06
2014	41.27
2015	41.49
2016	41.73
