Year % of population ages 15-49 2010 0.379873959785734 2011 0.379873425217987 2012 0.3798897594533808 2013 0.37992353236772886 2014 0.379977299753877 2015 0.38007240566621503 2016 0.3800696767096609 2017 0.3799897311808012 2018 0.37980363248710797 2019 0.37958190521288904 2020 0.37955750137656524 2021 0.4