With growth on that scale, output doubles every sixteen years.

His business grew rapidly: every few years the factory's output doubled, and by 1892 he was making 3,600 shoes per day.

The new techniques were introduced progressively, but between 1912 and 1913 output doubled from 3,000 to 6,000 cars.

In China, per capita output has been doubling every 10 years.

In the recovery period from 1949 to 1952, industrial output more than doubled as plants were repaired and employment rose.

Lead mining increased, and output almost doubled between 1300 and 1500.

As a result, agricultural output has doubled in less than a decade, while rural incomes have risen even faster.

Indications are that the output may double by 2010.

Between 1939 and 1944 (the peak of wartime production), the nation's output almost doubled.

The daily output of our factory has almost doubled since we installed the new machinery.