Year per 1,000 population at risk 2000 461.271129634751 2001 462.037338911621 2002 465.888863303818 2003 471.414816173624 2004 473.813680950141 2005 474.636627588265 2006 470.579154073665 2007 456.425309354423 2008 435.927571341521 2009 408.753775776008 2010 384.676424859322 2011 361.568483313027 2012 333.657873576831 2013 307.60064821106 2014 294.129864248823 2015 298.758122999603 2016 305.245033536132 2017 317.119333003588 2018 328.65566976936 2019 330.001245288348 2020 326.748625313463 2021 320.997804662059 2022 309.606702371537