Of course I noticed that rather startling figure when I read the Gray report myself. The right hon. Gentleman, who has obviously read the report, will also have noticed that there is no evidential basis for that statement anywhere in it, nor is there an evidential basis for it anywhere else that I have ever come across. The very fact that the figure ranges between £1 billion and more than £2 billion shows, I think, how imprecise that statement inevitably is.