Year per 100,000 adults 2004 27.825000000000003 2005 26.15 2006 27.62 2007 28.66 2008 27.68 2009 25.935000000000002 2010 25.494999999999997 2011 24.125 2012 24.07 2013 23.055 2014 22.09 2015 22.1 2016 21.61 2017 20.71 2018 20.285 2019 19.810000000000002 2020 18.48 2021 17.055