Year % of male working-age population with basic education 1997 45.82372742388254 1998 44.415084055545805 1999 43.11549303982395 2000 39.66775374108081 2001 38.86224838329627 2002 35.7861588555124 2003 34.513018409888936 2004 33.88982988150408 2005 33.11191089846289 2006 33.30812121289249 2007 33.5469191766839 2008 33.339919998698434 2009 33.27321660398493 2010 33.21103441405889 2011 32.240897470887234 2012 32.58643593417068 2013 32.86276238158127 2014 33.34638862917734 2015 33.414270746555005 2016 32.65192216077473 2017 32.88467863149081 2018 32.75457018432441 2019 33.954666069871635 2020 33.661678130928514 2021 32.297636567041266 2022 32.30787947834197 2023 32.4091362767631