Year	Cases per 100,000
2000	24
2001	12
2002	29
2003	16
2004	12
2005	18
2006	18
2007	22
2008	13
2009	7.7
2010	11
2011	8.7
2012	11
2013	9.8
2014	13
2015	14
2016	7.9
2017	11
2018	8.7
2019	9.6
2020	7.6