Year	% of total working-age population with intermediate education
2005	68.655
2006	69.363
2007	69.894
2008	70.958
2009	70.218
2010	67.852
2011	68.191
2012	69.027
2013	69.044
2014	68.289
2015	67.568
2016	67.335
2017	66.593
2018	66.076
2019	66.052
2020	64.45
2021	64.432
2022	62.778