In 2009 however, production plummeted by nearly six percent.

From 1987 through 1991, clerical jobs in the city plummeted by 80,000 or 12 percent.

Today, its value plummeted again, by almost 50 percent.

Since then, the Independent's circulation has plummeted by nearly 20 percent.

Families saw their kerosene costs plummet by 60 percent during the 1880's.

In just 12 years, from 1989 to 2001, domestic consumption of sake plummeted by 30 percent.

But for city residents, the rates plummeted by 58 percent in only six months.

But they plummeted by 7.9 percent, to 580,000 homes, in the West.

New residential construction has now plummeted by 27.4 percent from October last year.

The number of initial public offerings plummeted by 64 percent, to 51, from 143 a year earlier.