Year	% of total working-age population with basic education
1997	38.86672828728814
1998	36.510903157995195
1999	35.66363141938537
2000	33.01058834389622
2001	32.47066974782836
2002	29.26958390642291
2003	27.88907029841121
2004	27.034451489209143
2005	26.13743454962034
2006	26.23393651585755
2007	26.159232662199948
2008	25.92667174252277
2009	25.755915030447788
2010	25.539112135912532
2011	24.93043259194677
2012	24.955683253328527
2013	24.778899425735588
2014	24.935129379264616
2015	24.59516454055906
2016	23.734755920411565
2017	23.969137980020772
2018	23.685571183358153
2019	24.358540566392932
2020	23.874894184985944
2021	22.449783588116933
2022	22.95112330943845
2023	22.74998234638789