| Range of age (years) | Sex | Total n (%) | |
| Female n (%) | Male n (%) | ||
| <5 | 1 (4) | 3 (12) | 4 (16) |
| 6 - 10 | 1 (4) | 4 (16) | 5 (20) |
| 11 - 15 | 6 (24) | 10 (40) | 16 (64) |
| Total | 8 (32) | 17 (68) | 25 (100) |