Year	Cases per 100,000
1990	42.35
1991	41.65
1992	40.89
1993	41.4
1994	42.59
1995	42.3
1996	44.03
1997	44.09
1998	44.6
1999	46.47
2000	47.05
2001	48.07
2002	46.55
2003	47.29
2004	47.65
2005	45.33
2006	44.57
2007	41.95
2008	41.52
2009	39.85
2010	37.61
2011	37.17
2012	36.03
2013	34.67
2014	33.87
2015	33.17
2016	32.62