Year per 100,000 adults 2004 7 2005 6.65 2006 7 2007 7.98 2008 8.9 2009 8.85 2010 9.21 2011 8.84 2012 8.96 2013 9.24 2014 9.49 2015 8.84 2016 9.08 2017 8.37 2018 9.29 2019 9.37 2020 9 2021 7.47