| Value |
Category |
| 1 |
Form 1/Year 7 |
| 2 |
Form 2/Year 8 |
| 3 |
Form 3/Year 9 |
| 4 |
Form 4/Year 10 |
| 5 |
Form 5/Year 11 |
| 6 |
Form 6/Year 12 |
| 7 |
Form 7/Year 13 |
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.