| Value |
Category |
| 000 |
NIU (not in universe) |
| 110 |
Illiterate |
| 120 |
Less than primary, literate |
| 200 |
Primary (6th grade completed) |
| 310 |
Preparatory (9th grade completed) |
| 320 |
Secondary completed |
| 400 |
Associate's degree |
| 500 |
Bachelor's degree and above |
| 510 |
Bachelor's degree |
| 520 |
Higher diploma and above (Master's and Ph.D.) |
| 521 |
Higher diploma |
| 522 |
Master's degree |
| 523 |
Ph.D. degree |
| 999 |
Unknown |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.