Year	Cases per 100,000
1980	40.98364
1981	33.97727
1982	26.93091
1983	27.03455
1984	26.25818
1985	27.43182
1986	26.25545
1987	27.91909
1988	28.47273
1989	26.32636
1990	26.24
1991	26.21
1992	26.26
1993	26.13
1994	25.94
1995	25.4
1996	24.73
1997	23.74
1998	22.5
1999	21.24
2000	19.74
2001	18.77
2002	17.32
2003	16.51
2004	15.78
2005	15.16
2006	14.39
2007	13.8
2008	13.71
2009	13.55
2010	13.54
2011	13.31
2012	13.42
2013	13.4
2014	13.28
2015	13.13
2016	12.97