Pretty soon, a Republican faculty member will truly be one in a million.

For professors younger than 36, the ratio of registered Democrats to Republicans was an astonishing 22.7 to 1 at 40 top universities. The study sampled professors across the fields of economics, history, communications, law, and psychology, using information from Voter Lists Online’s Aristotle database.

“We found that younger faculty have higher [Democrat to Republican] ratios than do older faculty,” said Mitchell Langbert and Daniel Klein, two of the study’s three authors (Anthony Quain in the third). “The trend will continue.”

Moreover, the political registration of assistant professors is the most imbalanced of all categories, with a Democrat to Republican ratio of 19.3 to 1. Emeritus professors’ registrations are the least skewed at 8.6 to 1. These statistics suggest that top universities will only become less politically diverse as older professors retire and younger professors take over the commanding heights of their institutions.