In some disciplines, doctoral programs can average seven to ten years.

The program is averaging an 11.8 rating in that group, the highest of any series the entire season.

Having had notably high ratings since its beginnings, the program has regularly averaged approximately 9 to 10 million viewers daily.

The program, at the time of its cancellation, averaged less than 17,700 viewers according to unofficial estimates.

Those two programs averaged an 18.4 rating and a 28 share.

That program averaged 35 participants a day in its first month.

The average time to graduation can vary between institutions, but most programs average around 5-6 years.

The top 25 original programs also averaged around 1 million views per week at the time of the announcement.

The program, begun in the 1970's, averaged 40 students a year until recently.

Although it has moved around several prime time slots since its inception, the program has averaged about 10 million viewers per season.