Year	per 1,000 population at risk
2000	1.76754183717203
2001	1.21493768118605
2002	1.49617293652189
2003	2.08756367071273
2004	1.85775231743528
2005	1.66110557928578
2006	2.01879678512007
2007	2.16911447701681
2008	1.40896412427388
2009	1.09044112054504
2010	0.974258932724755
2011	0.427770133092169
2012	0.336944450073562
2013	0.302741342034846
2014	0.243471265637881
2015	0.466637695797107
2016	0.28435223204509
2017	0.267733904653961
2018	0.17298329175016
2019	0.211290333960482
2020	0.231839154859663
2021	0.160512390530746
2022	0.12166598485506