Year per 1,000 population at risk 2000 222.490501969189 2001 287.751781099154 2002 337.597853724948 2003 277.415746413288 2004 294.780496775462 2005 112.190747154874 2006 31.0514406396138 2007 14.2541729223704 2008 35.9646904668858 2009 34.7053804006108 2010 17.2726174658775 2011 45.3763625808948 2012 66.0790632042291 2013 47.7040829492612 2014 8.88114756173512 2015 10.2225492730853 2016 10.9367058915517 2017 10.7625603260974 2018 13.8967749261867 2019 12.7307210192033 2020 8.84097676099176 2021 12.1869775488891 2022 17.4597589937549