| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2021 | 3 | 2 | 2 | 3 |
| 2020 | 1 | 1 | 1 | 1 |
| 2019 | 3 | 3 | 3 | 3 |
| 2018 | 6 | 7 | 5 | 7 |
| 2017 | 4 | 5 | 3 | 5 |
| 2016 | 10 | 11 | 5 | 16 |
| 2015 | 10 | 9 | 3 | 21 |
| 2014 | 15 | 19 | 6 | 38 |
| 2013 | 9 | 9 | 4 | 18 |
| 2012 | 5 | 5 | 2 | 10 |
| 2011 | 6 | 5 | 4 | 8 |
| 2010 | 9 | 9 | 6 | 14 |
| 2009 | 5 | 7 | 3 | 11 |
| 2006 | 1 | 1 | 1 | 1 |
| Totalt alle år | 29 | 61 | 13 | 156 |