The overall effect was to approximately double the size of the company.

As a result, its international enrollments have approximately doubled to 4,400 since the early 1980's.

At all heights, the rate of climb was approximately doubled.

By 1909 the service had approximately doubled, with trains on Sundays also.

Rates of gout have approximately doubled between 1990 and 2010.

There were approximately 50,000 rickshaws in 1920 and that number doubled by 1930.

India's tiger population has approximately doubled since the 1970s, thanks to protection measures.

Since his election, the Greens position in state political opinion polls has approximately doubled.

Together, the existing and new locks will approximately double the capacity of the present canal.

Now new houses were built and the post-War village has approximately doubled in size.