Year	% of lower secondary school age
1971	50.813720703125
1972	49.5135116577148
1999	25.851110458374
2000	24.4107093811035
2001	20.6627502441406
2002	18.2906093597412
2003	16.9671592712402
2004	14.7747802734375
2005	13.5640201568604
2006	10.899510383606
2007	7.67170000076294
2008	9.40546035766602
2009	7.94955015182495
2010	9.5605001449585
2011	11.0495500564575
2012	9.46156024932861
2013	7.29421997070312
2014	8.69342041015625
2015	10.1896600723267
2016	12.0301504135132
2017	17.4188709259033