Year	% of total working-age population with basic education
2005	55.425
2006	54.26
2007	55.107
2008	55.595
2009	55.472
2010	54.386
2011	53.85
2012	53.837
2013	52.637
2014	49.743
2015	52.028
2016	51.884
2017	51.157
2019	53.623
2022	51.003
2023	50.521