Year	% of total working-age population with intermediate education
1997	73.966
1998	73.987
1999	71.894
2000	72.745
2001	71.445
2002	68.946
2003	72.024
2004	70.399
2005	69.862
2006	72.128
2007	72.026
2008	73.741
2009	72.371
2010	71.725
2011	72.095
2012	71.471
2013	70.974
2014	71.414
2015	73.224
2016	74.059
2017	74.599
2018	75.1
2019	74.729
2020	74.826
2021	67.059
2022	69.336
2023	70.262