Year	% of lower secondary school age
1998	22.2549800872803
1999	22.2223091125488
2000	21.4625701904297
2001	20.516960144043
2002	18.3631000518799
2003	15.9930896759033
2004	13.9933595657349
2005	12.7926998138428
2006	12.8437099456787
2007	10.9165897369385
2008	11.1302700042725
2009	10.391489982605
2010	10.20994
2011	10.19081
2012	10.18335
2013	10.13359
2014	9.73554
2015	9.39604
2016	9.52078
2017	9.59355
2018	9.58114