Year	% of lower secondary school age
1999	41.2447700500488
2000	40.5799407958984
2001	40.6652297973633
2002	39.5359802246094
2003	35.8535308837891
2004	34.2193298339844
2005	32.7616996765137
2006	30.9654598236084
2007	28.9081401824951
2008	27.77121925354
2009	27.4611892700195
2010	25.12365
2011	23.7226
2012	21.55197
2013	20.28578
2014	19.79231
2015	16.94862
2016	16.40908
2017	16.12277
2018	15.50897