Year	% of total working-age population with basic education
2009	50.14
2010	42.996
2011	42.877
2012	42.969
2013	43.739
2014	43.153
2015	42.133
2016	41.989
2017	41.39
2018	41.182
2019	40.652
2020	39.395
2021	38.494
2022	37.418
2023	36.657