Year	% of total working-age population with intermediate education
1991	70.371
1992	66.621
1993	67.253
1994	66.912
1995	67.328
1996	70.204
1997	69.822
1998	70.539
1999	70.329
2000	70.56
2001	69.171
2002	69.559
2003	69.415
2004	68.491
2005	68.186
2006	68.382
2007	68.345
2008	68.393
2009	67.882
2010	67.485
2011	67.379
2012	67.15
2013	66.215
2014	67.154
2015	67.072
2016	67.351
2017	66.883
2018	66.458
2019	66.034
2020	65.558
2021	65.853
2022	65.39
2023	65.517