| Jahr | Monat | Sichtungen |
|---|---|---|
| 2024 | 11 | 3 |
| 2024 | 10 | 9 |
| 2024 | 9 | 9 |
| 2024 | 8 | 5 |
| 2024 | 7 | 47 |
| 2024 | 6 | 31 |
| 2024 | 5 | 37 |
| 2024 | 4 | 44 |
| 2024 | 3 | 39 |
| 2024 | 2 | 32 |
| 2024 | 1 | 26 |
| 2023 | 12 | 46 |
| 2023 | 11 | 44 |
| 2023 | 10 | 38 |
| 2023 | 9 | 25 |
| 2023 | 8 | 18 |
| 2023 | 7 | 5 |
| 2023 | 6 | 26 |
| 2023 | 5 | 31 |
| 2023 | 4 | 18 |
| 2023 | 3 | 26 |
| 2023 | 2 | 19 |
| 2023 | 1 | 19 |
| 2022 | 12 | 21 |
| 2022 | 11 | 47 |
| 2022 | 10 | 37 |
| 2022 | 9 | 17 |
| 2022 | 8 | 21 |
| 2022 | 7 | 15 |
| 2022 | 6 | 22 |
| 2022 | 5 | 44 |
| 2022 | 4 | 22 |
| 2022 | 3 | 24 |
| 2022 | 2 | 44 |
| 2022 | 1 | 30 |
| 2021 | 12 | 25 |
| 2021 | 11 | 31 |
| 2021 | 10 | 3 |
| 2021 | 9 | 11 |
| 2021 | 8 | 12 |
| 2021 | 7 | 13 |
| 2021 | 6 | 12 |
| 2021 | 5 | 19 |
| 2021 | 4 | 30 |
| 2021 | 3 | 34 |
| 2021 | 2 | 16 |
| 2021 | 1 | 28 |
| 2020 | 12 | 18 |
| 2020 | 11 | 27 |
| 2020 | 10 | 28 |
| 2020 | 9 | 42 |
| 2020 | 8 | 22 |
| 2020 | 7 | 20 |
| 2020 | 6 | 33 |
| 2020 | 5 | 24 |
| 2019 | 5 | 10 |
| 2019 | 4 | 43 |
| 2019 | 3 | 43 |
| 2019 | 2 | 36 |
| 2019 | 1 | 7 |
| 2018 | 12 | 14 |
| 2018 | 11 | 4 |
| 2018 | 10 | 1 |
| 2018 | 9 | 4 |
| 2018 | 7 | 1 |
| 2018 | 3 | 3 |
| 2017 | 8 | 2 |
| 2017 | 3 | 1 |
| 2017 | 1 | 1 |
| 2016 | 8 | 2 |
| 2016 | 7 | 13 |
| 2016 | 6 | 1 |
| 2016 | 4 | 3 |
| 2015 | 9 | 1 |
| 2015 | 2 | 1 |
| 2013 | 10 | 1 |
| 2013 | 8 | 2 |
| 2013 | 7 | 1 |
| 2013 | 5 | 6 |
| 2012 | 12 | 9 |
| 2012 | 10 | 3 |
| 2012 | 8 | 1 |
| 2011 | 12 | 1 |
| 2011 | 8 | 3 |
| 2011 | 6 | 1 |
| 2010 | 6 | 1 |
| 2010 | 1 | 1 |
| 2009 | 11 | 2 |
| 2009 | 10 | 1 |
| 2009 | 9 | 1 |
| 2009 | 5 | 3 |
| 2009 | 3 | 2 |
| 2009 | 2 | 2 |
| 2008 | 12 | 1 |
| 2008 | 9 | 17 |
| 2008 | 8 | 10 |
| 2008 | 7 | 53 
|
| 2008 | 5 | 14 |
| Durchschnitt | 18 | |
| Total | 1716 | |