Year	% of total working-age population with basic education
2000	65.505
2001	63.823
2002	63.502
2003	59.216
2004	58.814
2005	57.323
2006	56.51
2007	55.789
2008	54.916
2009	54.052
2010	53.253
2011	52.364
2012	51.698
2013	51.096
2014	50.641
2015	49.753
2016	48.931
2017	48.337
2018	47.62
2019	47.767
2020	47.347
2021	46.356
2022	45.674
2023	44.801