The present vacancy rate of 29.1 will plummet to 21.6 percent.

Top schools became so selective that at some the admission rates plummeted, to 10 percent or even less.

Membership plummeted over the decades to 8.5 percent last year.

By 2002, that figure had plummeted to 11.3 percent.

In 1989, the rate for female first offenders given probation plummeted, to 9 percent.

Today that trust has plummeted to below 20 percent.

Between 1950 and 2000, the share of women 15-to-24 who were married plummeted to 16 percent, from 42 percent.

However, with the Asian financial crisis of the late-1990s, growth plummeted to 2 percent.

By 2005 that number had plummeted to 25 percent, lower than all the countries surveyed save Zimbabwe.

But as of this week it had plummeted to 2 percent.