Year	Cases per 100,000
2000	25
2001	20
2002	24
2003	21
2004	26
2005	29
2006	27
2007	23
2008	23
2009	20
2010	23
2011	20
2012	23
2013	21
2014	20
2015	20
2016	19
2017	20
2018	21
2019	21
2020	15