Year	% of total working-age population with basic education
1992	45.105
1993	44.652
1994	44.63
1995	43.957
1996	43.62
1997	43.64
1998	44.6
1999	44.2
2000	44.614
2001	43.436
2002	44.264
2003	45.16
2004	45.181
2005	45.39
2006	46.687
2007	47.043
2008	48.26
2009	48.465
2010	48.143
2011	47.872
2012	47.922
2013	47.103
2014	51.472
2015	50.943
2016	49.575
2017	49.035
2018	48.201
2019	47.466
2020	45.256
2021	44.95
2022	44.854
2023	45.193