Last datum and then you can work out EVERYTHING in your stats: non Anglo/Commonwealth countries insecure about English language skills mostly go to countries speaking their own language - so Lat Americans go to Spain/Italy not US or UK (tho this is changing -current Brazilian generation eg speaks v good English cos of US tv/Internet) which is why you aint got them, and why we still get less Spaniards than Greeks (who really have nowhere else to go that speaks their language except Melbourne :)even tho until recently youth unemployment was as catastrophic in Spain as Greece.

Also I'm curious about your quite high Arab intake. We hear we (UK) do well on them because they fear anti Islamic prejudice in US. Though it may well be just as bad in UK now..

Why Imperial has a high French intake is a true mystery to me tho! Maybe nowhere teaches science very well in FRance? Or maybe they're all exchange (one year or one term) studnts. It is a dark art..