| Jahr | Monat | Sichtungen |
|---|---|---|
| 2023 | 6 | 3 |
| 2023 | 5 | 10 |
| 2023 | 3 | 2 |
| 2022 | 5 | 1 |
| 2022 | 4 | 1 |
| 2022 | 2 | 2 |
| 2022 | 1 | 2 |
| 2021 | 12 | 3 |
| 2021 | 10 | 1 |
| 2021 | 7 | 1 |
| 2021 | 6 | 3 |
| 2021 | 3 | 6 |
| 2021 | 1 | 12 |
| 2020 | 12 | 12 |
| 2020 | 11 | 19 |
| 2020 | 10 | 16 |
| 2020 | 8 | 7 |
| 2020 | 7 | 25 |
| 2020 | 6 | 13 |
| 2020 | 5 | 1 |
| 2020 | 4 | 1 |
| 2020 | 2 | 6 |
| 2020 | 1 | 23 |
| 2019 | 12 | 35 |
| 2019 | 11 | 12 |
| 2019 | 9 | 1 |
| 2019 | 8 | 1 |
| 2019 | 6 | 19 |
| 2019 | 5 | 35 |
| 2019 | 4 | 24 |
| 2019 | 3 | 22 |
| 2019 | 2 | 3 |
| 2019 | 1 | 11 |
| 2018 | 12 | 22 |
| 2018 | 11 | 12 |
| 2018 | 10 | 9 |
| 2018 | 7 | 5 |
| 2018 | 6 | 8 |
| 2018 | 5 | 30 |
| 2018 | 4 | 4 |
| 2018 | 3 | 10 |
| 2018 | 2 | 13 |
| 2018 | 1 | 30 |
| 2017 | 12 | 2 |
| 2017 | 11 | 24 |
| 2017 | 10 | 18 |
| 2017 | 9 | 12 |
| 2017 | 8 | 21 |
| 2017 | 7 | 8 |
| 2017 | 6 | 6 |
| 2017 | 5 | 12 |
| 2017 | 4 | 10 |
| 2017 | 3 | 10 |
| 2017 | 2 | 34 |
| 2017 | 1 | 7 |
| 2016 | 12 | 10 |
| 2016 | 11 | 24 |
| 2016 | 10 | 29 |
| 2016 | 9 | 31 |
| 2016 | 8 | 29 |
| 2016 | 7 | 52 |
| 2016 | 6 | 18 |
| 2016 | 4 | 2 |
| 2016 | 3 | 36 |
| 2016 | 2 | 58 |
| 2016 | 1 | 34 |
| 2015 | 12 | 33 |
| 2015 | 11 | 59 |
| 2015 | 10 | 29 |
| 2015 | 9 | 14 |
| 2015 | 7 | 34 |
| 2015 | 6 | 28 |
| 2015 | 5 | 8 |
| 2015 | 4 | 1 |
| 2015 | 3 | 29 |
| 2015 | 2 | 3 |
| 2015 | 1 | 1 |
| 2014 | 12 | 23 |
| 2014 | 11 | 71 |
| 2014 | 10 | 14 |
| 2014 | 9 | 31 |
| 2014 | 8 | 16 |
| 2014 | 7 | 11 |
| 2014 | 6 | 10 |
| 2014 | 5 | 34 |
| 2014 | 4 | 72 |
| 2014 | 3 | 86 
|
| 2014 | 2 | 53 |
| 2014 | 1 | 28 |
| 2013 | 12 | 27 |
| 2013 | 11 | 8 |
| 2013 | 10 | 6 |
| 2013 | 9 | 1 |
| 2013 | 8 | 7 |
| 2013 | 6 | 4 |
| 2013 | 5 | 2 |
| 2013 | 4 | 1 |
| 2013 | 3 | 2 |
| 2013 | 2 | 22 |
| 2013 | 1 | 30 |
| Durchschnitt | 18 | |
| Total | 1761 | |