| Value |
Category |
| 1 |
Seventh (7th) |
| 2 |
Eighth (8th) |
| 3 |
Ninth (9th) |
| 4 |
Tenth (10th) |
| 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.