Hardly a day goes by that I don't get spammed in Russian. My heritage is Russian, but my family name was Westernized back in 1946. I've never spoken Russian. The only thing I can think of, and really it makes little sense, is I host a website for a friend of mine from Irtusk, Siberia. He's lived in the US for ten years now. There is no Russian anywhere in his folder on my server. Go figure! ;)
There must be loads of databases of all imaginable kinds out there. Including some with people who live in one specific country and may be assumed to speak and read and write one specific language that is not native to that country.
There are of course different attitudes to deciding which people should be added to such a database. One attitude is to add anybody where even just one single known factor suggests that they may actually belong there.
In the electronic age there is very little waste involved in adding too many people to a database.