Year	per 1,000 population at risk
2000	13.6583412537138
2001	13.4007477715824
2002	14.2132090505245
2003	8.10437308223831
2004	5.55101633495706
2005	3.71797196343553
2006	3.74940788258814
2007	1.57218365008307
2008	0.644586161969416
2009	2.04733468789283
2010	0.835119454644011
2011	0.367518906384978
2012	0.153659628930735
2013	0.0278098621187036
2014	0.0348685273002217
2015	0.0618157091898142
2016	0.0270356492070444
2017	0.019659392095852
2018	0.0106392222019289
2019	0.00352162896469391
2020	0.0384848177394018
2021	0.0156429513730166
2022	0