Year	% of lower secondary school age
1971	60.3273315429688
1973	41.7713203430176
1975	42.4292602539062
1976	38.1575393676758
1977	35.6628112792969
1978	36.3606910705566
1979	35.4977607727051
1998	37.8969497680664
1999	38.3310089111328
2000	38.9388389587402
2001	36.0498085021973
2002	33.9913101196289
2003	20.5436096191406
2004	17.0454902648926
2005	12.6134395599365
2006	14.9248104095459
2007	12.4339399337769
2008	11.5381498336792
2009	9.50885009765625
2010	8.81793022155762
2011	8.19662952423096
2012	8.02208042144775
2013	43.3914604187012
2020	51.6045303344727
2021	52.4526100158691
2022	52.9101104736328
2023	52.0967903137207