| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2021 | 3 | 2 | 2 | 6 |
| 2018 | 464 | 72 | 22 | 2580 |
| 2017 | 572 | 111 | 28 | 2780 |
| 2016 | 596 | 169 | 33 | 4586 |
| 2015 | 600 | 156 | 41 | 6269 |
| 2014 | 651 | 188 | 40 | 8595 |
| 2013 | 592 | 159 | 33 | 6094 |
| 2012 | 587 | 197 | 41 | 5606 |
| 2011 | 632 | 214 | 34 | 7184 |
| 2010 | 604 | 286 | 36 | 7932 |
| 2009 | 482 | 200 | 24 | 5096 |
| 1989 | 10 | 3 | 1 | 10 |
| 2007 | 184 | 66 | 19 | 381 |
| 2020 | 302 | 67 | 22 | 907 |
| 2019 | 445 | 73 | 21 | 2902 |
| 2008 | 348 | 109 | 21 | 1596 |
| 2006 | 115 | 31 | 9 | 131 |
| 2005 | 47 | 9 | 3 | 54 |
| 2004 | 3 | 3 | 2 | 4 |
| 2003 | 2 | 2 | 2 | 2 |
| 1991 | 23 | 6 | 2 | 30 |
| 1990 | 2 | 2 | 2 | 2 |
| 1992 | 15 | 8 | 1 | 21 |
| 2002 | 1 | 1 | 1 | 1 |
| 1993 | 5 | 3 | 1 | 5 |
| 1997 | 1 | 1 | 1 | 1 |
| 1994 | 9 | 4 | 1 | 10 |
| 2000 | 6 | 5 | 1 | 7 |
| 2001 | 2 | 3 | 1 | 3 |
| 1996 | 8 | 6 | 1 | 8 |
| 1999 | 5 | 2 | 1 | 5 |
| 1995 | 20 | 8 | 1 | 28 |
| Totalt alle år | 1056 | 1185 | 125 | 62836 |