Year	per 1,000 population at risk
2000	9.91596031514061
2001	12.5780094422921
2002	10.6970516665258
2003	1.77884000012907
2004	1.69047758154576
2005	0.714082160841488
2006	0.729637026424618
2007	0.503582419165832
2008	1.73650349673743
2009	1.52262199837061
2010	1.40092608260138
2011	1.72982934861913
2012	2.24575508606998
2013	1.47400469385627
2014	1.07252116282266
2015	0.711145643275896
2016	0.507069861592999
2017	0.461444937178126
2018	0.368958221816925
2019	0.185625347861306
2020	0.179877030959022
2021	0.232141434311016
2022	0.209588229776208