Year per 1,000 adults 2004 642.4 2005 712.75 2006 721.43 2007 1053.79 2008 1014.05 2009 950.15 2010 973.56 2011 987.93 2012 988.93 2013 993.03 2014 1031.16 2015 1091.4 2016 1181.23 2017 1247.89 2018 1337.94 2019 1447.46 2020 1456.13 2021 1574.2