Year	% of total working-age population with basic education
2007	49.275
2008	49.518
2009	46.712
2010	43.549
2011	43.313
2012	44.032
2013	44.959
2014	33.517
2015	30.894
2016	33.458
2017	33.239
2018	32.909
2019	33.887
2020	32.37
2021	35.422
2022	35.212