Year	% of total working-age population with basic education
2003	67.24
2004	68.225
2006	65.737
2010	61.233
2011	63.863
2012	67.592
2013	58.703
2014	60.796
2015	60.624
2016	61.111
2017	61.612
2018	61.16
2019	59.58
2021	62.641
2022	60.316