The rate of consumption more than quadrupled between 1990 and 2005.

Britain's pre-war rate of divorce had quadrupled from 8,000 to 32,000.

By 1988 the black rate was 63 percent and the white rate had more than quadrupled to 18 percent.

We have been proved wrong: the rate of divorce has quadrupled.

The rate of thinning within the central trunk has quadrupled from 1995 to 2006.

"The rate has doubled since 1979 and quadrupled since 1973."

The rate of Caesarean sections has quadrupled over the past 16 years, the report said.

Now, Botswana medical officials say, the rate of testing has probably quadrupled.

The rate of inflation over the previous 18 years had more than quadrupled the dollar amount.

The rate of testing has quadrupled.