Year	Cases per 100,000
2000	8.9
2001	9.6
2002	8.3
2003	11
2004	9.1
2005	8
2006	8.2
2007	6.5
2008	6.8
2009	6.9
2010	6.9
2011	6.9
2012	6.6
2013	6
2014	6.5
2015	6.3
2016	6.3
2017	6.4
2018	6.4
2019	6.5
2020	6.6