Year per 1,000 adults 2008 209.185 2009 187.28 2010 224.98 2011 228.52 2012 264.065 2013 292.07 2014 312.07 2015 336.79 2016 330.61 2017 327.64 2018 323.1 2019 313.82 2020 311.03 2021 309.41