I’m pretty sure we (LIRNEasia and RIA) were the only ones to have asked this question in Asia and Africa.
Finally, surveys conducted in Africa and Asia found that more than half of the people that weren’t on the Internet didn’t know what it was.
But I do not think the “more than half” is very accurate. This kind of thing happens when people write on the basis of other reports of research without going to the source. And of course, attribution would be nice. We claim no copyright; just moral rights.