Year	% of total working-age population with intermediate education
1997	71.132
1998	70.741
1999	70.68
2000	70.089
2001	69.496
2002	67.991
2003	66.365
2004	65.046
2005	64.38
2006	62.655
2007	61.84
2008	62.165
2009	62.095
2010	62.187
2011	61.959
2012	61.584
2013	61.027
2014	60.786
2015	60.038
2016	59.784
2017	59.325
2018	58.47
2019	57.522
2020	56.848
2021	57.937
2022	58.083
2023	57.223