Year	% of lower secondary school age
1998	23.0819206237793
1999	23.0112800598145
2000	22.2382907867432
2001	21.209680557251
2002	18.9439392089844
2003	16.4413890838623
2004	14.3312902450562
2005	13.061710357666
2006	13.2344102859497
2007	11.2405099868774
2008	11.4625997543335
2009	10.7503204345703
2010	10.55743
2011	10.5084
2012	10.48606
2013	10.42508
2014	10.04906
2015	9.7125
2016	9.76884
2017	9.82141
2018	9.81455