Henley Passport Index is based on the data it gets from the International Air Transport Authority (IATA).
Warbixinta oo ay soo saartay Henley Passport Index ayaa waxa loo adeegsday xog ka soo baxday Hay'adda Caalamiga ah ee gaadiidka ee loo yaqaanno (IATA), waxaa laga eegay Baasaaboorka waddamada lagu tagi karo oo laga ogolyahay.