| Form | Type | Frequency | Percentage (%) | Total (%) |
| Isolated | 1 | 10 | 11.4 | 54.3 |
| 2a | 16 | 18.2 | ||
| 2b | 15 | 17.0 | ||
| 3 | 04 | 4.5 | ||
| 4 | 03 | 3.4 | ||
| Associated | T4F | 23 | 26.1 | 45.7 |
| CAV | 11 | 12.5 | ||
| TAC | 04 | 4.5 | ||
| SP open septum | 1 | 1.1 | ||
| TGV | 1 | 1.1 | ||
| Total |
| 88 | 100 |
|