Year	% of lower secondary school age
1970	29.0233707427979
1981	12.7902097702026
1995	13.8225297927856
1996	13.2281503677368
1997	13.8011598587036
1998	11.540789604187
1999	9.61956024169922
2000	7.53302001953125
2001	6.98723983764648
2002	8.18978023529053
2004	9.19038009643555
2005	5.83870983123779
2006	2.69898009300232
2007	1.21711003780365
2008	1.41904997825623
2009	1.74015998840332
2010	1.60443997383118
2011	1.72113001346588
2016	4.38122987747192
2017	3.57031989097595
2018	3.0674901008606
2019	4.90211009979248
2020	5.78811979293823
2021	5.57859992980957
2022	2.32063007354736