| 2010 | 34 birding days 261 species seen |
| 2009 | 222 birding days 517 species seen |
| 2008 | 211 birding days 466 species seen |
| 2007 | 231 birding days 436 species seen |
| 2006 | 225 birding days 396 species seen |
| 2005 | 252 birding days 388 species seen |
| 2004 | 276 birding days 390 species seen |
| 2003 | 273 birding days 445 species seen |
| 2002 | 236 birding days 405 species seen |
| 2001 | 255 birding days 469 species seen |
| 2000 | 227 birding days 421 species seen |
| 1999 | 294 birding days 432 species seen |
| 1998 | 301 birding days 459 species seen |
| 1997 | 283 birding days 474 species seen |
| 1996 | 280 birding days 504 species seen |