| value | description |
|---|---|
| 0 | Elementary school normal class |
| 1 | Comprehensive school normal class |
| 2 | Builded in junior secondary school |
| 3 | Junior secondary school by\ncorrespondence |
| 4 | Comprehensive school special class |
| 5 | Comprehensive school special class |
| 6 | Special school or home education |
| 7 | Elementary school optional class |