There are at least a couple small problems in either the scripts or in the consistency of the database, so these statistics might be off slightly (a percentage point or two), but should be pretty reliable.

Also, note that some Gnome or Gnome-related applications are found in other databases outside bugzilla.gnome.org. (Evolution is one major example, though they are working to import it into Gnome bugzilla)

Overall statistics:

People who have closed more than 1000 bugs in the last two years include:

More detailed statistics can be found at: Variations on the following reports were used to obtain this data:

There are also a number of other interesting reports