| Percentage of correct classification (%) | Number of well-classified specimens | |
| Gr 11 | Gr 12 | |
Gr 11 (n = 174) | 99.43 | 173 | 1 |
Gr 12 (n = 71) | 100 | 0 | 71 |
Total (n = 245) | 99.59 | 173 | 72 |