Year	Cases per 100,000
1990	87.54
1991	85.77
1992	89.93
1993	101.1
1994	104.93
1995	97.45
1996	86.88
1997	78.31
1998	74.13
1999	76.07
2000	76.95
2001	75.17
2002	74.89
2003	73.7
2004	72.1
2005	71.92
2006	67.19
2007	65.36
2008	65.33
2009	62.17
2010	61.43
2011	59.17
2012	56.47
2013	55.53
2014	55.04
2015	54.51
2016	53.59