Year per 100,000 adults 2004 37.11 2005 40.11 2006 41.5 2007 44.68 2008 49.6 2009 48.69 2010 49.19 2011 52.74 2012 53.2 2013 54.04 2014 56.23 2015 34.56 2016 34.54 2017 34.71 2018 35.33 2019 32.39 2020 30.49 2021 29.86