Year % of male working-age population with basic education 2004 71.521 2005 71.099 2006 70.087 2008 68.411 2009 68.312 2010 67.612 2011 67.955 2012 67.307 2013 66.118 2014 65.708 2017 63.6 2018 62.852 2019 62.597 2020 57.821 2021 61.687 2022 62.523 2023 63.361