The Economist's food-price index jumped by nearly 55% (see chart 1).

《经济学人》食品价格指数上涨了近55％（见图表1 ）。

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Food prices have risen sharply this year according to The Economist's food-price index.

根据《经济学人》的粮食价格指数，今年的粮食价格大幅上涨。

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The Economist's food-price index is higher today than at any time since it was created in 1845.

《经济学家》的粮食价格指数已经高于自该指数1845年创立以来的任何时候。

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Food and Agricultural Organization (FAO) in January reported its food-price index was up 32% in the second half of 2010, surpassing the previous record of June 2008.

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For example, the chart below shows how the food and non-food consumer price index (CPI) have declined on a year-over-year basis over the past several months.

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By controlling for individual and environmental influences on weight, such as income and health, they then measure whether food-price changes affect body-mass index (BMI).

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