Year	% of lower secondary school age
1984	37.7356185913086
1985	33.9692802429199
1986	34.8716201782227
1987	33.4409294128418
1988	33.5237503051758
1989	33.751220703125
1990	34.5578002929688
1991	33.8406715393066
1992	34.077220916748
1993	32.8001289367676
1994	33.9917106628418
1995	33.2012100219727
1996	31.6653594970703
1997	30.7245101928711
1998	29.9783306121826
1999	28.8464794158936
2000	27.7900791168213
2001	27.0050296783447
2002	25.9959506988525
2003	25.0767002105713
2004	24.0056400299072
2005	22.9876098632813
2006	22.7680892944336
2007	22.4780197143555
2008	21.7554397583008
2009	20.4731197357178
2010	20.50899
2011	20.66203
2012	19.51959
2013	22.15013
2014	21.0476
2015	20.29779
2016	19.46756
2017	19.19605
2018	18.64328