Year	% of lower secondary school age
1985	77.8260498046875
1986	77.6272125244141
1987	78.1637268066406
1988	77.9935607910156
1997	78.6541290283203
2001	74.8103790283203
2002	71.140510559082
2004	67.6571731567383
2005	68.1890869140625
2006	70.2254486083984
2007	67.7035980224609
2008	58.3365211486816
2015	57.871410369873
2020	54.4751014709473
2021	52.6795806884766
2022	51.1987190246582