Year	% of total working-age population with intermediate education
1990	73.683
1991	73.228
1992	71.843
1993	70.995
1994	70.793
1995	70.462
1996	70.443
1997	70.217
1998	69.896
1999	70.431
2000	70.049
2001	69.706
2002	70.83
2003	70.522
2004	70.731
2005	69.867
2006	69.456
2007	69.683
2008	69.26
2009	68.134
2010	67.767
2011	67.26
2012	66.822
2013	66.408
2014	65.403
2015	64.288
2016	63.903
2017	63.753
2018	62.506
2019	62.502
2020	60.227
2021	60.388
2022	61.102
2023	60.933