| Département | Code | Observation(s) | % des observations totales |
|---|
| AISNE |
02 | 7 | 3.5 |
| ARDENNES |
08 | 2 | 1 |
| BAS-RHIN |
67 | 10 | 5 |
| CALVADOS |
14 | 1 | 0.5 |
| CHER |
18 | 2 | 1 |
| COTES-D'ARMOR |
22 | 3 | 1.5 |
| FINISTERE |
29 | 1 | 0.5 |
| HAUTE-MARNE |
52 | 1 | 0.5 |
| HAUTES-ALPES |
05 | 1 | 0.5 |
| HAUTE-SAONE |
70 | 3 | 1.5 |
| HAUTES-PYRENEES |
65 | 1 | 0.5 |
| HAUT-RHIN |
68 | 1 | 0.5 |
| ILLE-ET-VILAINE |
35 | 1 | 0.5 |
| ISERE |
38 | 1 | 0.5 |
| JURA |
39 | 1 | 0.5 |
| LOIRE |
42 | 1 | 0.5 |
| LOIRET |
45 | 1 | 0.5 |
| LOIR-ET-CHER |
41 | 1 | 0.5 |
| MANCHE |
50 | 97 | 48.7 |
| MAYENNE |
53 | 1 | 0.5 |
| MEURTHE-ET-MOSELLE |
54 | 7 | 3.5 |
| MEUSE |
55 | 1 | 0.5 |
| MORBIHAN |
56 | 1 | 0.5 |
| MOSELLE |
57 | 1 | 0.5 |
| NIEVRE |
58 | 1 | 0.5 |
| NORD |
59 | 2 | 1 |
| OISE |
60 | 1 | 0.5 |
| PAS-DE-CALAIS |
62 | 2 | 1 |
| SAONE-ET-LOIRE |
71 | 16 | 8 |
| SARTHE |
72 | 1 | 0.5 |
| SAVOIE |
73 | 6 | 3 |
| SEINE-ET-MARNE |
77 | 1 | 0.5 |
| SEINE-MARITIME |
76 | 11 | 5.5 |
| SOMME |
80 | 20 | 10.1 |
| VOSGES |
88 | 10 | 5 |