"If it keeps going up by 8 percent a year, the cost will double in nine years."

But I do not understand why the cost of my insulin has doubled in just a few years.

These costs alone would almost double our present electricity bills.

Even without the increases in quality the government wishes, the costs of care for older people will double by 2020.

The Pennsylvania project is three years behind, and its cost has more than doubled.

Between the years 1860 and 1865, the cost of living nearly doubled.

As of April 2010, the projected cost had more than doubled to $107 million.

From 1985 to 1986, the airline's costs doubled, but not their income.

Last year he told ministers that, in eight months, the cost of the project had almost doubled to £176 million.

But since the last recession in 1991, the cost of our product has more than doubled.