Year	% of total working-age population with basic education
1992	56.384
1993	55.627
1994	55.272
1995	55.244
1996	54.781
1997	54.771
1998	58.691
1999	58.083
2000	58.268
2001	59.139
2002	59.417
2003	59.215
2004	58.379
2005	58.451
2006	64.86
2007	64.653
2008	63.71
2009	61.915
2010	61.042
2011	59.505
2012	57.966
2013	55.839
2014	53.635
2015	52.551
2016	51.295
2017	51.355
2018	50.291
2019	49.169
2020	46.757
2021	43.664
2022	45.396
2023	44.936