Year	Cases per 100,000
2000	15
2001	9.3
2002	9.3
2003	13
2004	7.4
2005	6.4
2006	12
2007	11
2008	11
2009	8.3
2010	14
2011	16
2012	28
2013	2.8
2014	4.6
2015	6.4
2016	5.5
2017	1.8
2018	5.4
2019	3.6
2020	12