Year	% of total working-age population with intermediate education
1998	72.523
1999	73.328
2000	74.646
2001	74.505
2002	75.552
2003	74.847
2004	70.48
2005	69.06
2006	67.239
2007	66.437
2008	66.714
2009	66.733
2010	65.933
2011	65.564
2012	65.193
2013	63.88
2014	63.929
2015	62.963
2016	62.897
2017	62.237
2018	62.232
2019	61.353
2020	61.479
2021	60.315
2022	60.138
2023	59.878