| Département | Code | Observation(s) | % des observations totales |
|---|---|---|---|
| CHARENTE-MARITIME | 17 | 1 | 25 |
| CREUSE | 23 | 1 | 25 |
| DEUX-SEVRES | 79 | 1 | 25 |
| EURE-ET-LOIR | 28 | 2 | 50 |
| FINISTERE | 29 | 2 | 50 |
| INDRE | 36 | 4 | 100 |
| LOIRE-ATLANTIQUE | 44 | 1 | 25 |
| LOIR-ET-CHER | 41 | 1 | 25 |
| MANCHE | 50 | 2 | 50 |
| PUY-DE-DOME | 63 | 1 | 25 |
| SARTHE | 72 | 2 | 50 |
| VAR | 83 | 1 | 25 |