Year	% of total working-age population with basic education
1995	40.664
1996	37.905
1997	37.737
1998	44.741
1999	54.386
2000	53.431
2001	40.244
2002	40.191
2003	39.095
2004	37.165
2005	36.755
2006	37.45
2007	34.173
2008	33.746
2009	31.489
2010	31.603
2011	31.442
2012	30.563
2013	29.924
2014	28.53
2015	28.112
2016	26.266
2017	27.82
2018	28.528
2019	27.69
2020	27.365
2021	28.641
2022	30.931
2023	33.65