Year	% of total working-age population with basic education
2005	49.813
2006	53.814
2007	53.193
2008	51.459
2009	52.266
2010	53.318
2011	52.766
2012	59.648
2013	52.879
2014	52.022
2015	51.968
2016	49.067
2018	52.021
2019	52.202
2021	53.251