Year	Cases per 100,000
2000	4.7
2001	3.3
2002	3.5
2003	3.1
2004	3.4
2005	3.1
2006	3.1
2007	2.7
2008	2.6
2009	1.8
2010	2.2
2011	1.4
2012	2
2013	1.4
2014	1.3
2015	1.5
2016	2
2017	1.2
2018	0.82
2019	1.2
2020	0.94