Year	% of male working-age population with basic education
1998	35.279
1999	33.864
2000	30.852
2001	28.905
2002	27.564
2003	26.758
2004	26.306
2005	25.378
2006	26.761
2007	27.065
2008	26.109
2009	27.189
2010	26.522
2011	25.391
2012	26.845
2013	27.912
2014	28.1
2015	27.829
2016	28.513
2017	28.451
2018	28.395
2019	29.517
2020	30.866
2021	28.704
2022	29.183
2023	29.592