Year	% of total working-age population with advanced education
1998	83.538
1999	83.544
2000	81.4
2001	86.324
2002	82.399
2003	85.163
2004	82.767
2005	82.968
2006	82.382
2007	81.989
2008	82.3
2009	83.055
2010	84.198
2011	84.035
2012	83.237
2013	83.444
2014	82.527
2015	82.443
2016	83.372
2017	82.854
2018	83.094
2019	83.342
2020	82.777
2021	81.389
2022	81.28
2023	81.359