Year	Cases per 100,000
2000	21
2001	20
2002	19
2003	20
2004	20
2005	21
2006	21
2007	22
2008	22
2009	20
2010	22
2011	28
2012	30
2013	28
2014	28
2015	31
2016	30
2017	27
2018	28
2019	28
2020	23