The estimate for 1992 fell $28 billion, to $1,141 billion.

A reasonable estimate would fall between 150 and 200.

These estimates could fall far short of the total gold volume that was actually produced.

When new reserves are discovered, previous estimates fall short.

That estimate fell to 11.7 percent in early January.

First Call said that estimates have been "falling like a stone" in recent weeks.

The number of foreign fighters is also thought to be very small - from a dozen to 200, though most estimates fall on the lower end.

In budget talks this year, the administration's estimates of revenue fell almost $2 billion over four months.

As the estimates have fallen, so too has the company's stock price.

Grinning, he replied, "And still your estimate of yourself falls too low."