Location: Sandbekken
| Year | Arter/grupper | Participants | Observations |
|---|---|---|---|
| 2006 | 6 | 1 | 6 |
| 2007 | 30 | 1 | 30 |
| 2008 | 4 | 1 | 4 |
| 2009 | 22 | 2 | 26 |
| 2010 | 34 | 1 | 34 |
| 2011 | 24 | 1 | 28 |
| 2013 | 26 | 1 | 28 |
| 2014 | 30 | 1 | 37 |
| 2015 | 43 | 2 | 46 |
| 2016 | 31 | 1 | 31 |
| 2018 | 2 | 1 | 2 |
| 2020 | 34 | 1 | 34 |
| 2022 | 5 | 1 | 5 |
| 2023 | 3 | 1 | 3 |
| 2012 | 3 | 1 | 3 |
| 2019 | 8 | 1 | 8 |
| Totalt alle år | 183 | 2 | 325 |