| Département | Code | Observation(s) | % des observations totales |
|---|
| AIN |
01 | 2 | 0.1 |
| AISNE |
02 | 14 | 1 |
| ALPES-DE-HAUTE-PROVENCE |
04 | 1 | 0.1 |
| ARDECHE |
07 | 2 | 0.1 |
| ARDENNES |
08 | 4 | 0.3 |
| ARIEGE |
09 | 46 | 3.3 |
| AUBE |
10 | 1 | 0.1 |
| AUDE |
11 | 7 | 0.5 |
| AVEYRON |
12 | 4 | 0.3 |
| BAS-RHIN |
67 | 86 | 6.2 |
| BOUCHES-DU-RHONE |
13 | 2 | 0.1 |
| CALVADOS |
14 | 2 | 0.1 |
| CANTAL |
15 | 3 | 0.2 |
| CHARENTE |
16 | 3 | 0.2 |
| CHARENTE-MARITIME |
17 | 181 | 13.1 |
| CHER |
18 | 7 | 0.5 |
| CORREZE |
19 | 16 | 1.2 |
| COTE-D'OR |
21 | 18 | 1.3 |
| COTES-D'ARMOR |
22 | 10 | 0.7 |
| CREUSE |
23 | 14 | 1 |
| DEUX-SEVRES |
79 | 3 | 0.2 |
| DORDOGNE |
24 | 14 | 1 |
| DOUBS |
25 | 8 | 0.6 |
| DROME |
26 | 2 | 0.1 |
| ESSONNE |
91 | 7 | 0.5 |
| EURE |
27 | 5 | 0.4 |
| EURE-ET-LOIR |
28 | 18 | 1.3 |
| FINISTERE |
29 | 14 | 1 |
| GARD |
30 | 1 | 0.1 |
| GERS |
32 | 1 | 0.1 |
| GIRONDE |
33 | 18 | 1.3 |
| HAUTE-GARONNE |
31 | 20 | 1.4 |
| HAUTE-LOIRE |
43 | 6 | 0.4 |
| HAUTE-MARNE |
52 | 9 | 0.6 |
| HAUTE-SAVOIE |
74 | 1 | 0.1 |
| HAUTES-PYRENEES |
65 | 3 | 0.2 |
| HAUTE-VIENNE |
87 | 30 | 2.2 |
| HAUT-RHIN |
68 | 53 | 3.8 |
| HERAULT |
34 | 4 | 0.3 |
| ILLE-ET-VILAINE |
35 | 66 | 4.8 |
| INDRE |
36 | 403 | 29.1 |
| INDRE-ET-LOIRE |
37 | 1 | 0.1 |
| ISERE |
38 | 15 | 1.1 |
| JURA |
39 | 4 | 0.3 |
| LANDES |
40 | 6 | 0.4 |
| LOIRE |
42 | 16 | 1.2 |
| LOIRE-ATLANTIQUE |
44 | 5 | 0.4 |
| LOIRET |
45 | 11 | 0.8 |
| LOIR-ET-CHER |
41 | 10 | 0.7 |
| LOT |
46 | 5 | 0.4 |
| LOT-ET-GARONNE |
47 | 8 | 0.6 |
| MAINE-ET-LOIRE |
49 | 44 | 3.2 |
| MANCHE |
50 | 26 | 1.9 |
| MARNE |
51 | 5 | 0.4 |
| MAYENNE |
53 | 4 | 0.3 |
| MEURTHE-ET-MOSELLE |
54 | 20 | 1.4 |
| MEUSE |
55 | 11 | 0.8 |
| MORBIHAN |
56 | 38 | 2.7 |
| MOSELLE |
57 | 10 | 0.7 |
| NIEVRE |
58 | 86 | 6.2 |
| NORD |
59 | 10 | 0.7 |
| OISE |
60 | 9 | 0.6 |
| ORNE |
61 | 7 | 0.5 |
| PAS-DE-CALAIS |
62 | 4 | 0.3 |
| PUY-DE-DOME |
63 | 12 | 0.9 |
| PYRENEES-ATLANTIQUES |
64 | 9 | 0.6 |
| PYRENEES-ORIENTALES |
66 | 4 | 0.3 |
| RHONE |
69 | 2 | 0.1 |
| SAONE-ET-LOIRE |
71 | 61 | 4.4 |
| SARTHE |
72 | 137 | 9.9 |
| SAVOIE |
73 | 34 | 2.5 |
| SEINE-ET-MARNE |
77 | 9 | 0.6 |
| SEINE-MARITIME |
76 | 28 | 2 |
| SEINE-SAINT-DENIS |
93 | 1 | 0.1 |
| SOMME |
80 | 23 | 1.7 |
| TARN |
81 | 5 | 0.4 |
| TARN-ET-GARONNE |
82 | 49 | 3.5 |
| TERRITOIRE-DE-BELFORT |
90 | 11 | 0.8 |
| VAL-DE-MARNE |
94 | 2 | 0.1 |
| VAL-D'OISE |
95 | 8 | 0.6 |
| VENDEE |
85 | 14 | 1 |
| VIENNE |
86 | 55 | 4 |
| VOSGES |
88 | 9 | 0.6 |
| YONNE |
89 | 3 | 0.2 |
| YVELINES |
78 | 82 | 5.9 |