Year per 1,000 adults 2004 167.41 2005 190.32 2006 223.36 2007 256.18 2008 285.48 2009 296.03 2010 304.73 2011 326.28 2012 347.83 2013 344.06 2014 355.92 2015 380.52 2016 395.62 2017 395.63 2018 407.36 2019 407.32 2020 396.44 2021 390.76