Before World War One the class averaged 27,000 miles annually.

They oversee schools without books or windows, and teachers whose classes average 40 students and sometimes swell to 80.

Although the first class comprised only 13 students, "subsequent classes over the next 16 years averaged 48."

The school has been experiencing rapid growth; in past years graduating classes averaged around 300.

Entering classes now average about 1,500 students, of which more than 90% study in regular daytime classes.

The school keeps low student-to-teacher ratios with most classes averaging 10 students.

But classes average only eight to 10 students, Miss Nolan estimated.

All classes averaged between 25 to 34 students per class.

He played 25 first class matches as a batsman but only averaged 13 runs per innings.

In the first five years of the 30-team major leagues (1998-2002), the free-agent classes averaged 141 players and didn't exceed 157.