Year	% of total working-age population with intermediate education
1992	83.913
1993	83.144
1994	82.547
1995	82.182
1996	82.938
1997	82.129
1999	82.342
2000	82.661
2001	81.684
2002	81.938
2003	81.785
2004	80.929
2005	82.309
2006	83.045
2007	82.686
2008	79.171
2009	78.211
2010	77.78
2011	78.013
2012	77.484
2013	77.058
2014	76.651
2015	76.484
2016	76.261
2017	76.836
2018	76.763
2019	76.768
2020	76.7
2021	75.337
2022	72.05
2023	71.729