Year per 1,000 population at risk 2000 185.087673978349 2001 173.619801017541 2002 159.153642974827 2003 140.466284282245 2004 123.172100352451 2005 152.693368566674 2006 150.541323006762 2007 88.2646405061845 2008 69.8897239377321 2009 153.992483076767 2010 104.739718020054 2011 36.9304633895727 2012 59.6278675546344 2013 109.412188607692 2014 202.236962625779 2015 307.959772081994 2016 409.678767710631 2017 709.793326252036 2018 475.897731596271 2019 383.576802481459 2020 211.811069861 2021 117.794844229873 2022 84.791725854773