Year per 1,000 adults 2004 19.97 2005 26.9 2006 40.13 2007 55.62 2008 61.53 2009 72.23 2010 75.45 2011 81.15 2012 80.95 2013 116.76 2014 160.39 2015 220.48 2016 269.48 2017 237.41 2018 232.04 2019 261.11 2020 345.84