Actual worldwide average price gains on grains

begin quote:
GLOBAL FOOD PRICE RISES

Wheat: 130%
Soya: 87%
Rice: 74%
Corn: 31%
Time: Year to March 2008
Source: Bloomberg
end quote:

http://news.bbc.co.uk/2/hi/business/7344892.stm

Quotes are from article at BBC called
"World Bank echoes food cost alarm"