This is half interesting
http://www.pornmd.com/sex-searchPorn-searching habits around the world
interesting observations:
All asians obsess with the japanese. Chinese fap to the japanese, koreans, vietnamese, all fap to the japanese. The japanese included fap almost exclusively to japanese.
Arabs fap a LOT to gay-porn. "Hijab" was also an interesting show-up on at least one arab country top 10. Africans are more world-wide again, they like indians, asians, in kenya "white anal" made the top 10, otherwise they are also eager on the black chicks.
South America, like the middle east, staggeringly gay. Clearly, in both cases, it is the anti-gay society backlashing on their porn habits, gay gay gay gay, for Peru (and Mexico iirc) the entire top 10 was made up of gay. Argentina stood out as oddly western, sharing an interest for teen, milf, anal and asian. Also connecting the typical west (Europe, US, Australia) is a penchant for hentai.