Year per 1,000 adults 2004 361.12 2005 380.54 2006 396.87 2007 400.37 2008 473.47 2009 515.91 2010 513.81 2011 525.38 2012 572.8 2013 507.97 2014 553.04 2015 584.67 2016 556.74 2017 611.92 2018 472.41 2019 174.56 2020 179.49 2021 509.18