Year	% of total working-age population with intermediate education
1998	80.127
1999	78.865
2000	78.249
2001	78.582
2002	78.196
2003	76.586
2004	75.066
2005	75.391
2006	73.752
2007	74.483
2008	76.618
2009	77.134
2010	76.694
2011	81.606
2012	80.556
2013	79.763
2014	80.04
2015	79.45
2016	78.359
2017	77.404
2018	76.827
2019	76.302
2022	71.494
2023	72.184