Year per 100,000 adults 2004 1.15 2005 1.21 2006 1.31 2007 1.8599999999999999 2008 2.05 2009 2.435 2010 2.745 2011 2.83 2012 3.17 2013 3.34 2014 3.32 2015 3.3449999999999998 2016 3.23 2017 3.32 2018 3.3200000000000003 2019 3.78 2020 3.86 2021 3.585