| Event | 1955 | 2005 | 2008 | 2022 |
| Max. Area (Km2) | 1.27 | 1.21 | 0.99 | 1.25 |
| Max. Depth (m) | 2.52 | 2.94 | 2.18 | 3.19 |
| Max. Velocity (m/s) | 2.66 | 4.49 | 3.10 | 4.98 |
| Peak flow (m3/s) | 91.4 | 76.9 | 44.5 | 91.4 |
| Volume (m3∙106) | 280 | 170 | 100 | 280 |