Lower secondary education, pupils, national source
The data derived from national sources may differ from international sources because of divergences in definitions, methods of calculation, or in some cases due to different underlying data.  For these reasons, the data based on national sources in this database should not be used for making comparisons between countries, but rather for assessing the progress of individual countries.
Total population of pupils in lower secondary school, regardless of age. Country-specific definition, method and targets are determined by countries themselves.