Year	% of total working-age population with intermediate education
1997	60.606
2003	62.225
2006	69.906
2007	70.57
2008	64.132
2009	71.646
2010	71.215
2011	69.92
2012	70.562
2013	71.539
2014	71.572
2015	71.758
2016	71.546
2017	71.27
2018	72.006
2019	71.804
2020	71.261
2021	65.974
2022	69.126
2023	67.366