In Switzerland I've only seen DIN.
In France I've seen both, but I didn't use them (the justification was that yoke is stronger against impacts, go figure why one would want that).
In Oz they usually had convertibles or at least on most tanks. (Not quite true for the university club, where I used 2 of the only 3 din tanks
)
Vanuatu had convertible too.
That's what I've seen, I obviously haven't seen all the tanks of each of those countries.
In France I've seen both, but I didn't use them (the justification was that yoke is stronger against impacts, go figure why one would want that).
In Oz they usually had convertibles or at least on most tanks. (Not quite true for the university club, where I used 2 of the only 3 din tanks

Vanuatu had convertible too.
That's what I've seen, I obviously haven't seen all the tanks of each of those countries.