Year	% of total working-age population with basic education
2005	53.075
2006	52.751
2007	51.971
2008	49.816
2009	50.604
2010	49.319
2011	47.552
2012	47.542
2013	46.778
2014	46.223
2015	46.437
2016	46.497
2018	46.112
2019	45.769
2020	43.224
2021	42.513
2022	42.234