Year	% of lower secondary school age
1972	72.5719528198242
1974	70.1462631225586
1975	69.682731628418
1979	62.481819152832
1980	63.7802391052246
1982	61.6148490905762
1999	45.9738311767578
2000	44.378059387207
2001	39.7294006347656
2002	39.1421585083008
2008	28.6664791107178
2009	23.9318103790283
2010	18.8846206665039
2011	22.7537899017334
2012	26.8835105895996
2013	26.7867298126221
2014	26.7195491790771
2015	26.933910369873
2016	29.4148807525635
2017	31.314790725708
2018	30.7777309417725
2020	33.0606803894043
2021	33.6303482055664
2022	37.4120101928711