Year	% of total working-age population with intermediate education
1998	79.58
1999	76.765
2001	74.611
2002	74.599
2003	74.313
2004	75.334
2005	75.919
2006	71.757
2007	73.42
2008	75.526
2009	77.686
2010	75.804
2011	76.376
2012	79.051
2013	76.374
2014	75.349
2015	75.101
2016	76.986
2017	76.973