| Département | Code | Observation(s) | % des observations totales |
|---|
| ALPES-DE-HAUTE-PROVENCE |
04 | 1 | 1 |
| AUDE |
11 | 6 | 5.8 |
| BOUCHES-DU-RHONE |
13 | 16 | 15.4 |
| CHARENTE-MARITIME |
17 | 95 | 91.3 |
| CHER |
18 | 1 | 1 |
| COTES-D'ARMOR |
22 | 5 | 4.8 |
| DEUX-SEVRES |
79 | 1 | 1 |
| DORDOGNE |
24 | 1 | 1 |
| DROME |
26 | 5 | 4.8 |
| FINISTERE |
29 | 1 | 1 |
| GARD |
30 | 1 | 1 |
| HAUTE-CORSE |
2B | 1 | 1 |
| HAUTE-GARONNE |
31 | 19 | 18.3 |
| HAUTS-DE-SEINE |
92 | 1 | 1 |
| HERAULT |
34 | 7 | 6.7 |
| ILLE-ET-VILAINE |
35 | 5 | 4.8 |
| INDRE |
36 | 6 | 5.8 |
| LOIR-ET-CHER |
41 | 2 | 1.9 |
| LOT-ET-GARONNE |
47 | 1 | 1 |
| MAINE-ET-LOIRE |
49 | 1 | 1 |
| MANCHE |
50 | 3 | 2.9 |
| MORBIHAN |
56 | 4 | 3.8 |
| NORD |
59 | 5 | 4.8 |
| PAS-DE-CALAIS |
62 | 4 | 3.8 |
| PYRENEES-ORIENTALES |
66 | 3 | 2.9 |
| SARTHE |
72 | 3 | 2.9 |
| SEINE-MARITIME |
76 | 18 | 17.3 |
| TARN-ET-GARONNE |
82 | 9 | 8.7 |
| VAL-DE-MARNE |
94 | 3 | 2.9 |
| VAR |
83 | 8 | 7.7 |
| VIENNE |
86 | 2 | 1.9 |