| Breakdown dates | |
Rain classes | Pettitt test | Hubert’s segmentation |
P1 (1 to 10 mm) | Absence of break | Absence of rupture |
P2 (10 to 30 mm) | 1982 | 1982 |
P3 (30 to 50 mm) | Absence of break | Absence of rupture |
P4 (>50 mm) | Absence of break | 1981 |