Year % of male working-age population with basic education 2007 41.667 2008 47.427 2009 45.937 2010 48.419 2011 46.394 2012 46.644 2013 46.317 2014 41.315 2015 49.243 2016 47.52 2017 40.075 2018 50.727 2019 47.442 2020 39.048 2021 34.181 2022 39.37