I'm mapping in (mostly southern) Finland and occasionally abroad.
Stats on Finland
Here was a old list of stats from a Finland extract; edits from 428 users in 10.8.2008. Last time I checked (likely April) it was over 600 contributors, with the top ten users "owning" a significant majority of the data.
Not that it is of any interest, but I wanted to add the pages and categories for Finnish speaking users.