Year per 1,000 adults 2004 85.54 2005 97.03 2006 46.9 2007 55.37 2008 73.94 2009 99.67 2010 122.38 2011 136.95 2012 176.3 2013 190.08 2014 273.61 2015 253.3 2016 258.05 2017 260.53 2018 270.47 2019 272.21 2020 264.97 2021 262.18