Year	% of male working-age population with basic education
1997	60.852
1998	60.854
1999	59.909
2000	59.509
2001	57.555
2002	48.47
2003	46.464
2004	43.881
2005	42.036
2006	43.172
2007	44.827
2008	45.404
2009	45.798
2010	46.334
2011	42.701
2012	43.362
2013	43.886
2014	46.777
2015	45.517
2016	43.868
2017	44.36
2018	43.839
2019	45.746
2020	45.923
2021	40.687
2022	41.87
2023	44.314