Year % of male working-age population with basic education 2005 82.701 2006 82.669 2007 82.156 2008 80.16 2009 80.856 2010 80.12 2011 78.949 2012 78.513 2013 79.291 2014 78.178 2015 77.923 2016 76.758 2018 76.549 2019 76.289 2020 73.893 2021 73.504 2022 72.939