| Jahr | Monat | Sichtungen |
|---|---|---|
| 2019 | 9 | 863 
|
| 2019 | 8 | 694 |
| 2019 | 6 | 262 |
| 2019 | 5 | 835 |
| 2019 | 4 | 541 |
| 2019 | 3 | 331 |
| 2019 | 2 | 14 |
| 2019 | 1 | 34 |
| 2018 | 12 | 5 |
| 2018 | 10 | 12 |
| 2018 | 9 | 98 |
| 2018 | 8 | 82 |
| Durchschnitt | 314 | |
| Total | 3771 | |
| Jahr | Monat | Sichtungen |
|---|---|---|
| 2019 | 9 | 863
|
| 2019 | 8 | 694 |
| 2019 | 6 | 262 |
| 2019 | 5 | 835 |
| 2019 | 4 | 541 |
| 2019 | 3 | 331 |
| 2019 | 2 | 14 |
| 2019 | 1 | 34 |
| 2018 | 12 | 5 |
| 2018 | 10 | 12 |
| 2018 | 9 | 98 |
| 2018 | 8 | 82 |
| Durchschnitt | 314 | |
| Total | 3771 | |