Year	per 1,000 population at risk
2000	37.1522902356647
2001	14.4231537990033
2002	14.5811658627321
2003	7.20227068706964
2004	3.54895454568766
2005	1.89179730888029
2006	4.11547418292781
2007	6.64364332033094
2008	1.62873662197072
2009	0.389688833466477
2010	0.0963066403428516
2011	0.00475328095217724
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0
2021	0
2022	0