| Subjects | Raven’s percentiles |
| 1 | 5 |
| 2 | 95 |
| 3 | 10 |
| 4 | 70 |
| 5 | 30 |
| 6 | 30 |
| 7 | 99 |
| 8 | 60 |
| 9 | 90 |
| 10 | 60 |
| 11 | 1 |
| 12 | 50 |
| 13 | 99 |
| 14 | 99 |
| 15 | 60 |
| 16 | 1 |
| 17 | 80 |
| 18 | 60 |