Year	% of total working-age population with basic education
2010	78.721
2011	79.299
2012	78.405
2013	79.589
2014	79.691
2015	79.902
2016	78.937
2017	77.859
2018	77.766
2019	76.711
2020	74.145
2021	72.497
2022	72.957