Year % of male working-age population with basic education 2005 79.187 2006 79.312 2007 78.336 2008 79.46 2009 80.253 2010 79.478 2011 78.422 2012 77.374 2013 82.14 2014 83.607 2015 82.577 2016 82.345 2017 83.658 2018 84.462 2019 84.778 2021 81.179 2022 82.918 2023 77.123