Year	Cases per 100,000
2000	5.3
2001	1.3
2002	5.1
2003	1.3
2005	7.4
2006	4.8
2007	2.4
2008	1.2
2009	3.5
2010	8
2011	6.7
2012	3.3
2013	11
2014	3.2
2016	3.2
2017	1
2018	5.2
2019	0
2020	2