Year	% of lower secondary school age
1974	34.5129203796387
1975	32.3615684509277
1998	2.92494010925293
1999	2.44024991989136
2000	2.02261996269226
2001	2.21128988265991
2002	1.97660994529724
2003	2.25343990325928
2004	2.74421000480652
2005	2.92298007011414
2006	3.14014005661011
2007	3.2120099067688
2008	3.36864995956421
2009	3.15191006660461
2010	2.35718989372253
2011	2.67496991157532
2012	1.81834995746613
2013	1.48426997661591
2014	1.20331001281738
2015	1.0660799741745
2016	0.712660014629364
2017	0.745809972286224
2018	0.686990022659302
2019	0.599829971790314
2020	0.709150016307831
2021	0.964969992637634