" A key reason for concern is the sharp rise in gasoline prices so far in 2011 nearly 70 cents per gallon which is siphoning off household income at a run rate equivalent to $ 100 billion per year, " writes economist Andrew Tilton. “令人担心的一个重要原因是2011年以来汽油价格的大幅上涨已上涨近0.70美元/加仑这相当于一年吞噬(美国)居民收入1000亿美元”,经济学家安德鲁•提尔顿写道。