Year	% of total working-age population with basic education
2009	29.13
2010	29.75
2011	28.75
2012	34.636
2013	34.541
2014	33.622
2015	32.869
2016	32.145
2017	31.877
2018	31.199
2019	29.837
2020	26.862
2021	25.903
2022	28.577