Year	% of total working-age population with advanced education
1997	81.435
1998	81.881
1999	81.413
2000	81.138
2001	79.955
2002	79.85
2003	79.603
2004	78.334
2005	79.471
2006	79.771
2007	79.651
2008	80.013
2009	80.959
2010	80.391
2011	80.003
2012	79.979
2013	80.182
2014	80.379
2015	80.547
2016	80.55
2017	80.309
2018	80.546
2019	80.453
2020	80.007
2021	81.128
2022	81.08
2023	81.43