Year	per 1,000 population at risk
2000	5.744296733957
2001	10.5684779461442
2002	11.6717145600946
2003	7.86500074667729
2004	6.44304051343763
2005	3.9130544545707
2006	1.49982205501042
2007	0.614376407945935
2008	0.154655119084442
2009	0.0259389914920108
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	0
2019	0
2020	0