Year	% of lower secondary school age
1998	50.9409294128418
1999	50.0554809570313
2000	49.267879486084
2001	48.335521697998
2002	46.0560302734375
2003	44.4436187744141
2004	43.649959564209
2005	43.4028511047363
2006	41.1946411132813
2007	39.9678916931152
2008	38.9516410827637
2009	37.9794311523438
2010	36.46023
2011	36.12863
2012	35.21693
2013	35.68929
2014	36.2572
2015	35.75132
2016	35.53301
2017	34.04563
2018	34.23471