| Return period (year) | 2 | 5 | 10 | 20 | 50 | 100 |
| Observation discharge from 20 years data (m3/s) | 33.4 | 64.9 | 85.1 | 102.8 | 122.8 | 135.7 |
| Observation discharge from 30 years data (m3/s) | 37.4 | 63.7 | 78.0 | 89.1 | 100.1 | 106.3 |
| Calculation discharge from regional factor (m3/s) | 36.7 | 65.8 | 81.7 | 93.8 | 105.1 | 110.9 |