Over the past two years, in the non-farm business sector, it slowed to an annual average of 2% from an average of almost 4% in the previous three years.

在过去的两年中，在非农产业部门，它已经从在那之前的三年平均大概4%减缓到平均每年2%。

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Over the period of 1919-29, productivity growth in the non-farm business sector was a more modest 2.3%.

ECONOMIST: American productivity

To confuse matters more, the most popular productivity measure in America is output per hour in the non-farm business sector, which grew by an annual average of 2.5% over the past five years.

ECONOMIST: Productivity in Europe and America