[[Translating:Group statistics in time]]

Please update Translating:Group statistics in time. (Or is the page dead?)

Not dead. Just not updated. You could update it if you'd like. It's a few simple calculations based on SVN changes in a month to Names.php for the number of languages supported (excluding "codes that only fall back to another code") and the number of languages over the threshold by the end of the month.

It's not even that hard. You only have to check the group statistics history (paying attention to header changes, sorry for that): I just did so for the last few years' end.