Year	Cases per 100,000
1990	44.8
1991	44.27
1992	44.48
1993	45
1994	44.7
1995	44.49
1996	43.09
1997	42.18
1998	41.69
1999	41.23
2000	41.03
2001	39.85
2002	38.78
2003	37.73
2004	36.65
2005	36.5
2006	36.6
2007	36.68
2008	36.79
2009	36.87
2010	37
2011	37.27
2012	37.68
2013	38.13
2014	38.78
2015	39.48
2016	40.22