Year	% of total working-age population with intermediate education
2005	48.852
2006	50.69
2007	50.579
2008	49.273
2009	48.878
2010	48.615
2011	47.403
2012	57.835
2013	48.642
2014	46.512
2015	47.345
2016	45.653
2018	46.747
2019	46.566
2021	52.584