Year	Cases per 100,000
2000	11
2001	8.5
2002	8.5
2003	8.6
2004	7.6
2005	7
2006	6.3
2007	5.7
2008	5.1
2009	5.2
2010	5
2011	5
2012	5
2013	5.2
2014	5.3
2015	6.9
2016	7
2017	6.5
2018	6.3
2019	5.5
2020	4.8