On average doctors write just over seven prescriptions each year per patient; in Germany it is double.

一个医生平均一年仅为每个病人开大约七个处方；而德国是这个数字的两倍。

《柯林斯英汉双解大词典》

Each Nigerian sips only a third of a shot each year, on average.

尼日尼亚人全年平均才喝三次。

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California spends $49, 000 a year on each prisoner, almost twice the national average.

加州为每名罪犯每年支出4.9万美元，这一数字几乎是全国水平的两倍。

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On average,eight hundred tornadoes are reported nationwide each year.

VOA: special.2010.05.11

Staff now take 12 days' sick each year on average - down from 22 days before the new rules were brought in, the firm says.

BBC: BA boss Willie Walsh intervened personally in the dispute

According to a review of data from the Census Bureau by the Kauffman Foundation, between 1980 and 2005 companies less than five years old created roughly three million new jobs each year on average.

FORBES: The Great Startup Slowdown

At the same time, developers are increasing battery life by just 1% each year, on average, according to Mr. Howe.

WSJ: Fast Phones, Dead Batteries