During those years, the school saw difficult times, and the number of students enrolling plummeted.

During the 10 years ending in 1995, the number of members plummeted, to 11,356 from 21,903.

Then last year, the number plummeted more than 35 percent, to 680.

When these requirements are not met, the number of individuals plummets.

In the last 10 days, the number of volunteers plummeted.

Then the number plummets back to birth level between 3 and 15 months.

The main focus is China, where the number of new cases has plummeted in recent days.

The number of station owners has plummeted by a third.

Since the 1930's, the total number of farmers has plummeted to less than 2 million.

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