Localities: Drammen
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2023 | 1 | 1 | 1 | 1 |
| 2022 | 1 | 1 | 1 | 1 |
| 2020 | 4 | 4 | 4 | 5 |
| 2018 | 1 | 1 | 1 | 1 |
| 2017 | 4 | 4 | 2 | 4 |
| 2016 | 2 | 1 | 1 | 2 |
| 2015 | 2 | 2 | 2 | 3 |
| 2013 | 5 | 2 | 2 | 5 |
| 2012 | 4 | 4 | 4 | 5 |
| 2011 | 19 | 3 | 2 | 21 |
| 2008 | 2 | 3 | 3 | 4 |
| 2007 | 1 | 1 | 1 | 1 |
| Totalt alle år | 32 | 20 | 15 | 53 |