Year	Cases per 100,000
1990	44.01
1991	43.08
1992	40.4
1993	37.99
1994	34.63
1995	31.15
1996	29.87
1997	30.1
1998	29.77
1999	29.83
2000	29.98
2001	30.25
2002	31
2003	32.6
2004	33.7
2005	34.07
2006	34.63
2007	35.02
2008	37.84
2009	40.38
2010	42.73
2011	45.05
2012	47.31
2013	46.86
2014	47.36
2015	46.13
2016	45.53