Year	% of lower secondary school age
1992	52.4331283569336
1993	51.669849395752
1994	53.060001373291
1995	51.1342887878418
1996	51.0561904907227
1997	51.0730209350586
1998	51.4734992980957
1999	51.2038917541504
2000	49.9975509643555
2001	48.7816886901855
2002	45.9693908691406
2003	42.640251159668
2004	40.1323318481445
2005	39.2380714416504
2006	37.9694900512695
2007	37.3379287719727
2008	35.4955406188965
2009	35.1652488708496
2010	34.49189
2011	34.22103
2012	33.3836
2013	35.29195
2014	34.76567
2015	33.99695
2016	32.93401
2017	32.41532
2018	32.60308