This data set was already made public in the form of dumps last November (see email). And now it's available via the Analytics Query Service API. Check it out:

• Get last month's breakdown of active editors (5-99 edits) for Portuguese Wikipedia:
  https://wikimedia.org/api/rest_v1/metrics/editors/by-country/pt.wikipedia/5..99-edits/2020/08
  
  
• Get last January's breakdown of very active editors (100+ edits) for English Wikipedia:
  https://wikimedia.org/api/rest_v1/metrics/editors/by-country/en.wikipedia/100..-edits/2020/01

Two-letter ISO country codes are used for breakdowns.
For more detailed information, refer to the full documentation of the API endpoint, or the documentation of the underlying data.

As a next step, we'll add the corresponding visualization to Wikistats2.

Cheers!

On behalf of the Analytics team,
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