Year	% of total working-age population with intermediate education
1998	70.608
1999	70.458
2000	70.083
2001	69.658
2002	69.08
2003	68.249
2004	67.507
2005	67.367
2006	66.633
2007	65.94
2008	65.438
2009	64.762
2010	64.058
2011	63.562
2012	63.454
2013	63.479
2014	63.242
2015	63.314
2016	63.545
2017	63.567
2018	63.889
2019	63.585
2020	62.801
2021	62.372
2022	62.237
2023	62.825