Year	Cases per 100,000
2000	4.9
2001	6.1
2002	5.3
2003	7.3
2004	6.2
2005	6
2006	5.9
2007	6
2008	6.2
2009	6.8
2010	6
2011	6.5
2012	6.8
2013	7.1
2014	5.9
2015	5.5
2016	5.3
2017	4.5
2018	3.5
2019	2.8
2020	2.7