Year	Cases per 100,000
1990	42.16
1991	42.58
1992	43.03
1993	43.48
1994	43.94
1995	44.41
1996	45.37
1997	46.36
1998	47.38
1999	48.44
2000	49.54
2001	49.97
2002	50.42
2003	50.87
2004	51.33
2005	51.8
2006	52.99
2007	54.2
2008	55.46
2009	56.77
2010	58.12
2011	58.46
2012	58.81
2013	59.16
2014	59.52
2015	59.88
2016	60.27
