| Value |
Category |
| 00 |
Less than primary |
| 01 |
Less than primary, illiterate |
| 02 |
Less than primary, literate |
| 10 |
Primary |
| 20 |
Secondary |
| 21 |
Lower secondary (grades 4-8) |
| 22 |
Upper secondary (grades 9-10) |
| 30 |
Technical vocational, unspecified |
| 31 |
Post-primary technical |
| 32 |
Secondary or post-secondary technical |
| 40 |
Higher education |
| 41 |
Some higher education |
| 42 |
Completed higher education |
| 99 |
NIU (not in universe) |
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.