There are some numbers for this in David Bellos "Is that a fish in your ear?"[1], chapter 19.
An UNESCO study of translations between Swedish, Chinese, Hindi, Arabic, French, German and English over a decade showed that 104,000 of the 132,000 translations made between all those languages were translations from English.
An UNESCO study of translations between Swedish, Chinese, Hindi, Arabic, French, German and English over a decade showed that 104,000 of the 132,000 translations made between all those languages were translations from English.
[1] http://www.amazon.com/That-Fish-Your-Ear-Translation/dp/0865...