| Value |
Category |
| 1 |
Secondary 6 |
| 2 |
Secondary 5 |
| 3 |
Secondary 4 |
| 4 |
Secondary 3 |
| 5 |
Ungraded or other grade |
| Sysmiss |
|
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.