[WSIS CS-Plenary] looking for digital divide numbers from a authoritative source

[Avri Doria]

hi,

Yesterday i was talking over dinner to some social scientist involved  
in development - mostly from the theoretical point of view.

i started talking about the percentage people on the have-not side of  
the digital divide,  and the other statistic about the number who are  
not within a 2 hour walk of a telephone (though i am not sure how  
wireless technology affect that).

being bad at remembering numbers i said the first was about 3/4 and  
the second about 2/3.  i have been asked to back up my estimates, but  
i don't know where to find the authoritative quotable percentages.

can anyone give me a clue?

thanks
a.