Species: Welsh Wave (Venusia cambrica)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2024 | 1 | 4 | 3 | 12 |
| 2023 | 1 | 2 | 2 | 2 |
| 2022 | 1 | 3 | 2 | 4 |
| 2021 | 1 | 2 | 1 | 2 |
| 2020 | 1 | 2 | 2 | 3 |
| 2019 | 1 | 2 | 1 | 14 |
| 2018 | 1 | 5 | 4 | 25 |
| 2017 | 1 | 12 | 8 | 22 |
| 2016 | 1 | 16 | 11 | 42 |
| 2015 | 1 | 12 | 9 | 59 |
| 2014 | 1 | 19 | 12 | 68 |
| 2013 | 1 | 21 | 13 | 62 |
| 2012 | 1 | 23 | 15 | 56 |
| 2011 | 1 | 17 | 11 | 75 |
| 2010 | 1 | 22 | 13 | 81 |
| 2009 | 1 | 8 | 7 | 53 |
| 2008 | 1 | 10 | 7 | 39 |
| 2007 | 1 | 6 | 2 | 9 |
| 1995 | 1 | 2 | 1 | 2 |
| Totalt alle år | 1 | 98 | 31 | 630 |