Somewhere out there must be a clever cartographer who can produce a world projection based on gearing, but for now you'll have to imagine the combination of population size (a close proxy for food consumption) and PC GNP;
|Who eats all the Pies? India and China, of course|
|Per Capita GNP (IMF)|
There's a third factor, of course, and that's the land resource each nation has in relation to population - lots of land and low population can indicate a degree of self-sufficiency - Australia and the US are good examples. Conversely, the UK, which has been unable to produce domestically sufficient food since around 1900 and now imports some 50% of all food, remains vulnerable on this score if protectionist measures are taken elsewhere - such as India's prohibition on rice exports. Or if a nation like China with trillions in foreign reserves commits these resources on the market to offset a food price shock.
The Africans, as always, are buggered.