Year per 1,000 adults 2004 19.31 2005 34.58 2006 46.57 2007 74.65 2008 79.5 2009 53.91 2010 47.26 2011 46.04 2012 51.34 2013 58.18 2014 64.2 2015 62.28 2016 51.22 2017 83.23 2018 98.48 2019 117.55 2020 148.7 2021 181.85