Year per 100,000 adults 2004 25.92 2005 26.15 2006 27.785 2007 29.82 2008 32.75 2009 32.94 2010 32.19 2011 32.57 2012 26.63 2013 26.89 2014 27.98 2015 28.26 2016 28.02 2017 26.68 2018 25.58 2019 23.66 2020 23.22 2021 21.66