Year	% of total working-age population with basic education
1990	58.89
1991	57.08
1992	55.056
1993	53.67
1994	53.758
1995	52.499
1996	51.401
1997	51.333
1998	50.729
1999	51.461
2000	51.747
2001	51.089
2002	52.108
2003	52.809
2004	51.792
2005	50.76
2006	51.551
2007	51.51
2008	51.969
2009	49.478
2010	48.399
2011	48.034
2012	47.165
2013	46.851
2014	45.978
2015	45.431
2016	44.823
2017	44.951
2018	44.393
2019	44.548
2020	42.055
2021	42.691
2022	42.794
2023	42.867