Year	Cases per 100,000
1990	40.16
1991	40.99
1992	42.06
1993	43.29
1994	44.66
1995	46.75
1996	48.61
1997	49.61
1998	49.54
1999	47.95
2000	45.17
2001	42.82
2002	41.02
2003	39.67
2004	38.59
2005	37.63
2006	36.25
2007	34.67
2008	33.41
2009	32.93
2010	32.66
2011	31.61
2012	30.45
2013	29.36
2014	28.02
2015	27.44
2016	26.97