Year	% of total working-age population with intermediate education
2002	63.148
2005	65.489
2007	60.282
2008	61.687
2009	60.748
2010	59.473
2011	66.55
2012	63.162
2013	58.937
2014	59.085
2015	59.967
2016	62.278
2017	63.032
2018	62.902
2019	62.602