Location: Bøleveien 18
| Year | Arter/grupper | Participants | Observations |
|---|---|---|---|
| 1989 | 12 | 1 | 18 |
| 1990 | 25 | 1 | 26 |
| 1991 | 1 | 1 | 1 |
| 1994 | 1 | 1 | 1 |
| 1995 | 1 | 1 | 1 |
| 1996 | 1 | 1 | 1 |
| 2006 | 3 | 1 | 3 |
| 2010 | 189 | 1 | 563 |
| 2011 | 293 | 1 | 855 |
| 2012 | 183 | 1 | 419 |
| 2014 | 1 | 1 | 1 |
| 2015 | 8 | 1 | 8 |
| 2018 | 9 | 1 | 22 |
| 2019 | 22 | 1 | 100 |
| 2021 | 181 | 1 | 330 |
| 2022 | 239 | 1 | 454 |
| 2023 | 97 | 1 | 154 |
| 2024 | 1 | 1 | 1 |
| Totalt alle år | 522 | 1 | 2958 |