Deutsche Bank calculates that cadmium, a rare metal, has appreciated twice as much as oil since 2001, for example, and the price of rice has risen fractionally more.

• 比如，德意志银行得出数据，2001年以来，镉，一种稀有金属，价格增长的速度甚至快过石油。而大米的价格也是大幅上涨。