Year	per 1,000 population at risk
2000	5.863024548533133
2001	5.482523217589801
2002	5.1456961440870765
2003	5.286010488099669
2004	5.695077894598559
2005	5.273036076538343
2006	5.191764366496525
2007	4.6133776503848285
2008	4.724235259767439
2009	5.135371903461699
2010	5.258469634759689
2011	4.53598169659077
2012	5.162465968586006
2013	3.7999736748718616
2014	3.44246210825714
2015	2.4402133835688122
2016	2.5693005223983802
2017	2.282759638768015
2018	2.2852351233019137
2019	2.1061767382291245
2020	2.2907813303996307
2022	3.265760669246995