Year	per 1,000 population at risk
2000	13.681865052907732
2001	13.696493623072062
2002	12.837060730597768
2003	13.37874593669071
2004	14.166165869280567
2005	14.956716279585425
2006	12.823602631754683
2007	12.116945139960885
2008	11.90932209539714
2009	11.753966508657376
2010	11.533701827440328
2011	10.006733798470828
2012	8.588518143439199
2013	7.23980574357348
2014	7.219060161933836
2015	7.610175010582844
2016	8.000233369068921
2017	7.117036454830068
2018	6.272886353826095
2019	5.998951396915398
2020	5.779106424239102
2022	5.351001437711326