Klasse: Fåbørstemark (Oligochaeta)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|
| 2024 | 1 | 1 | 1 | 2 |
| 2023 | 6 | 2 | 2 | 33 |
| 2022 | 5 | 3 | 3 | 8 |
| 2021 | 2 | 2 | 2 | 3 |
| 2020 | 2 | 3 | 2 | 4 |
| 2019 | 9 | 4 | 4 | 58 |
| 2018 | 8 | 7 | 6 | 39 |
| 2017 | 4 | 8 | 6 | 17 |
| 2016 | 12 | 7 | 7 | 69 |
| 2015 | 6 | 11 | 10 | 32 |
| 2014 | 11 | 8 | 6 | 82 |
| 2013 | 5 | 60 | 58 | 73 |
| 2012 | 9 | 13 | 12 | 24 |
| 2011 | 2 | 3 | 3 | 3 |
| 2010 | 22 | 199 | 153 | 1510 |
| 2009 | 2 | 2 | 2 | 2 |
| 2008 | 10 | 9 | 8 | 45 |
| 2007 | 7 | 5 | 5 | 17 |
| 2006 | 9 | 5 | 5 | 46 |
| 2005 | 9 | 9 | 10 | 21 |
| 2004 | 4 | 11 | 12 | 16 |
| 2003 | 1 | 3 | 3 | 3 |
| 2002 | 4 | 9 | 9 | 14 |
| 2001 | 1 | 7 | 7 | 7 |
| 2000 | 1 | 5 | 5 | 6 |
| 1999 | 2 | 3 | 3 | 3 |
| 1998 | 1 | 8 | 8 | 20 |
| 1997 | 1 | 18 | 17 | 49 |
| 1996 | 2 | 24 | 24 | 57 |
| 1995 | 1 | 30 | 29 | 77 |
| 1994 | 1 | 51 | 47 | 121 |
| 1993 | 12 | 52 | 47 | 79 |
| 1992 | 9 | 26 | 26 | 43 |
| 1991 | 9 | 24 | 22 | 44 |
| 1990 | 13 | 33 | 32 | 60 |
| 1989 | 8 | 50 | 49 | 56 |
| Totalt alle år | 42 | 546 | 439 | 2743 |