Year per 1,000 adults 2004 255.65 2005 262.28 2006 266.91 2007 271.57 2008 277.09 2009 278.99 2010 334.17 2011 477.37 2012 547.78 2013 527 2014 535.32 2015 653.32 2016 696.01 2017 730.78 2018 788.38 2019 849.32 2020 903.67 2021 942.56