To get this, you'd have to query some raw data we have. So it's a one-off task, and I personally have a long queue of such tasks that I haven't gotten to yet. So basically, either create a general interest research project, sign an NDA, and get access to the data yourself, or find someone else with such an NDA that's willing to run a simple query for you. Defining the query ahead of time would help, I could run it quickly and get you results if you do that. The data we publish is described here (let me know if we have gaps in documentation, I would fix those):
https://wikitech.wikimedia.org/wiki/Analytics/Data