Year	Cases per 100,000
2000	4.7
2001	4.4
2002	4.2
2003	4.4
2004	4.8
2005	6
2006	5.4
2007	5
2008	5.6
2009	6.1
2010	6.5
2011	5.7
2012	6.2
2013	6.3
2014	6.6
2015	8
2016	7.1
2017	4.9
2018	4.8
2019	4.8
2020	3.1