| Value |
Category |
| 000 |
NIU (not in universe) |
| 100 |
None |
| 110 |
Nursery or grade 1 |
| 201 |
Grade 1 |
| 202 |
Grade 2 |
| 203 |
Grade 3 |
| 204 |
Grade 4 |
| 205 |
Grade 5 |
| 206 |
Grade 6 |
| 207 |
Grade 7 |
| 208 |
Grade 8 |
| 209 |
Grade 9 |
| 210 |
Grade 10 |
| 211 |
Grade 11 |
| 212 |
Grade 12 or GCE ordinary |
| 220 |
GCE advanced or undergraduate student |
| 300 |
Certificate or diploma |
| 310 |
Bachelor |
| 320 |
Postgraduate |
| 321 |
Master |
| 322 |
Doctorate or higher |
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.