Year per 1,000 adults 2009 1069.21 2010 1036.72 2011 1098.5 2012 1165.67 2013 1216.5 2014 1297.39 2015 1375.52 2016 1400.59 2017 1487.4 2018 1549.14 2019 1649.75 2020 1803.51 2021 1596.1