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"In just two months," Zoellick said in his speech, "rice prices have skyrocketed to near historical levels, rising by around 75 percent globally and more in some markets, with more likely to come. In Bangladesh, a 2-kilogram bag of rice … now consumes about half of the daily income of a poor family."The price of wheat has jumped 120 percent in the past year, he said — meaning that the price of a loaf of bread has more than doubled in places where the poor spend as much as 75 percent of their income on food.