Year	% of lower secondary school age
1986	8.72583961486816
1987	9.36178016662598
1988	8.35251998901367
1989	10.1381502151489
1990	9.19289016723633
1991	9.19602012634277
1992	9.12226963043213
1993	8.53989028930664
1994	8.29281044006348
1995	8.07732963562012
1996	7.83249998092651
1997	8.52091026306152
1998	8.13088035583496
1999	7.79622983932495
2000	6.30047988891602
2001	5.39250993728638
2002	4.99300003051758
2003	4.12494993209839
2004	3.95483994483948
2005	3.4558699131012
2006	2.97992992401123
2007	3.15596008300781
2008	3.3684298992157
2009	2.97062993049622
2010	3.25542
2011	3.32883
2012	3.6169
2013	3.38614
2014	3.60103
2015	3.19218
2016	3.40602
2017	3.55161
2018	3.55345