Year per 100,000 adults 2004 19.59 2005 19.01 2006 19.14 2007 20.81 2008 20.26 2009 19.73 2010 20.56 2011 20.75 2012 22.14 2013 22.17 2014 22.88 2015 21.79 2016 21.17 2017 20.62 2018 20.67 2019 21.22 2020 21.14 2021 21.08