Year	% of total labor force with intermediate education
1970	10.494
1980	4.265
1991	0.846
2000	2.167
2009	4.71
2010	4.01
2015	3.72
2016	4.1
2018	3.57
2019	3.53
2020	4.62
2021	4.58
2022	4.08