| Sequence | Flow classes Q (m3/h) | Number of drillings | % per flow class |
| 1 | 0 - 1 | 7 | 23.33 |
| 2 | 1 - 2.5 | 8 | 26.66 |
| 3 | 2.5 - 5 | 9 | 30 |
| 4 | Q > 5 | 6 | 20 |
|
| Total | 30 | 100 |