Year per 1,000 adults 2010 1484.91 2011 1488.19 2012 1400.8 2013 1414.59 2014 1411.01 2015 1433.14 2016 1449.05 2017 1437.74 2018 1441.37 2019 1449.37 2020 1437.44 2021 1474.47