Year	% of total working-age population with intermediate education
1970	44.813
1980	52.163
1991	61.042
2000	56.771
2011	64.18
2012	65.16
2013	67.03
2014	67.32
2015	67.27
2016	66.92
2017	67.45
2018	68
2019	68.06
2020	66.5
2021	68.81
2022	67.66