| Value |
Category |
| 10 |
Kindergarten, grade 0 |
| 11 |
Kindergarten, grade 1 |
| 12 |
Kindergarten, grade 2 |
| 13 |
Kindergarten, grade 3 |
| 20 |
Primary, grade 0 |
| 21 |
Primary, grade 1 |
| 22 |
Primary, grade 2 |
| 23 |
Primary, grade 3 |
| 24 |
Primary, grade 4 |
| 25 |
Primary, grade 5 |
| 26 |
Primary, grade 6 |
| 30 |
Junior Secondary School, grade 0 |
| 31 |
Junior Secondary School, grade 1 |
| 32 |
Junior Secondary School, grade 2 |
| 33 |
Junior Secondary School, grade 3 |
| 40 |
Senior Secondary School, grade 0 |
| 41 |
Senior Secondary School, grade 1 |
| 42 |
Senior Secondary School, grade 2 |
| 43 |
Senior Secondary School, grade 3 |
| 44 |
Senior Secondary School, grade 4 |
| 50 |
Vocational, technical, nursing, teacher, grade 0 |
| 51 |
Vocational, technical, nursing, teacher, grade 1 |
| 52 |
Vocational, technical, nursing, teacher, grade 2 |
| 53 |
Vocational, technical, nursing, teacher, grade 3 |
| 60 |
Higher (first degree), grade 0 |
| 61 |
Higher (first degree), grade 1 |
| 62 |
Higher (first degree), grade 2 |
| 63 |
Higher (first degree), grade 3 |
| 64 |
Higher (first degree), grade 4 |
| 70 |
Tertiary (Post graduate) and PHD, grade 0 |
| 71 |
Tertiary (Post graduate) and PHD, grade 1 |
| 72 |
Tertiary (Post graduate) and PHD, grade 2 |
| 73 |
Tertiary (Post graduate) and PHD, grade 3 |
| 74 |
Tertiary (Post graduate) and PHD, grade 4 |
| 75 |
Tertiary (Post graduate) and PHD, grade 5 |
| 80 |
Koranic |
| 90 |
Other |
| 98 |
Unknown |
| 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.