Year	% of lower secondary school age
1974	96.0234680175781
1977	94.8564605712891
1978	94.3258895874023
1981	91.4004898071289
1990	89.6246719360352
1991	88.8737030029297
1997	88.6548004150391
1999	88.5647811889648
2001	88.5716705322266
2002	88.1916122436523
2003	88.193962097168
2004	86.9360733032227
2005	82.9462814331055
2007	78.956169128418
2008	79.9841766357422
2009	80.5168685913086
2010	79.4862823486328
2011	79.6762466430664
2014	69.8821029663086
2015	67.7845764160156
2016	64.4261627197266
2017	63.353271484375
2018	66.6110000610352
2019	70.1869964599609
2021	71.8779983520508
2022	73.0869979858398
2023	75.0429992675781