Year	per 1,000 population at risk
2000	0.580932121204928
2001	0.382714495591371
2002	0.278917635505043
2003	0.0986090441259843
2004	0.042798018479356
2005	0.0125977396974613
2006	0.00638683630458716
2007	0.00053678089811496
2008	0.000526539014303169
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0.000993891147451305
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0