Year	% of total working-age population with basic education
1992	56.67
1993	51.673
1994	40.466
1995	38.262
1996	42.787
1997	41.147
1998	42.599
1999	63.963
2000	49.515
2001	46.306
2002	46.444
2003	44.417
2004	44.984
2005	44.902
2006	48.54
2007	52.941
2008	51.47
2009	50.188
2010	47.72
2011	46.333
2012	44.769
2013	43.195
2014	43.245
2015	42.544
2016	43.56
2017	43.242
2018	42.635
2019	43.229
2020	43
2021	43.856
2022	45.561
2023	46.13