Year	% of total working-age population with intermediate education
1996	71.352
1997	70.614
1998	71.086
1999	69.178
2000	67.996
2001	66.839
2002	67.101
2003	65.024
2004	67.805
2005	67.383
2006	66.916
2007	66.378
2008	66.54
2009	65.883
2010	65.257
2011	63.822
2012	63.288
2013	62.981
2014	63.026
2015	62.471
2016	61.415
2017	62.748
2018	63.719
2019	62.79
2020	61.272
2021	60.338
2022	61.293
2023	60.832