| Value | Category |
|---|---|
| 1 | Sin nivel |
| 2 | Educación inicial |
| 3 | Primaria incompleta |
| 4 | Primaria completa |
| 5 | Secundaria incompleta |
| 6 | Secundaria completa |
| 7 | Sup. No universitaria incompleta |
| 8 | Sup. No universitaria completa |
| 9 | Superior Universitaria incompleta |
| 10 | Superior Universitaria completa |
| 99 | Omisión |
| Sysmiss |