Year per 100,000 adults 2004 10.16 2005 11.68 2006 14 2007 17.04 2008 21.81 2009 20.72 2010 21.21 2011 23.6 2012 27.98 2013 32.88 2014 32.4 2015 32.17 2016 32.72 2017 33.23 2018 31.52 2019 33.58 2020 31.65 2021 31.25