Year per 1,000 adults 2004 14.26 2005 32.36 2006 65.3 2007 76.2 2008 106.75 2009 105.49 2010 126.26 2011 138.17 2012 151.38 2013 145.87 2014 154.13 2015 148.1 2016 141.54 2017 144.05 2018 141.38 2019 141.41 2020 152.55 2021 153.88