Year per 100,000 adults 2004 57.36 2005 56.8 2006 55.62 2007 55.28 2008 53.95 2009 52.68 2010 51.77 2011 50.25 2012 48.88 2013 47.45 2014 46.03 2015 44.35 2016 42.46 2017 40.83 2018 39.52 2019 38.36 2020 37.03 2021 36.39