Year	% of total working-age population with intermediate education
2007	51.361
2008	54.801
2009	55.671
2010	59.562
2011	59.951
2012	62.113
2013	61.417
2014	62.106
2015	59.614
2016	58.848
2017	59.22
2018	69.35
2019	71.815
2020	67.612
2021	69.023
2022	67.943