Year per 1,000 population at risk 2000 2.37384881820095 2001 1.14726630452183 2002 0.659891777748449 2003 0.647891739380323 2004 0.599970001499925 2005 1.18248085507187 2006 0.871397884326997 2007 1.64509980940917 2008 0.521433395574272 2009 0.452264023871675 2010 0.262773722627737 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0 2022 0