Year	% of total working-age population with basic education
2002	60.851
2005	15.909
2007	42.328
2008	48.635
2009	50.465
2010	51.617
2011	55.36
2012	52.626
2013	46.483
2014	47.066
2015	49.372
2016	51.267
2017	52.049
2018	54.205
2019	55.178