The population more than doubled from 4000 to 9000 during the 19th century.

The company's share more than doubled from 1986 to 1987.

The work force has more than doubled from its low of 2,000.

Between 1900 and 1950 the population had doubled from 5.1 to 10.0 million people.

Between 1801 and 1830 the population of the town more than doubled from 7072 to 15086.

Some have doubled to 60 from 30 in just one school year.

But the number of men had doubled from the year before, to 1,917.

The group has more than doubled since the fall, to nearly 8,000 members from 3,000.

Between 1885 and 1900, the number of students doubled from 500 to 1,000.

Between 1944 and 1969 the population of the city nearly doubled from 275,000 to 525,600.