INSEAD published the profile of its July 2012 class:

The class consists of 496 students, split between two campuses in France (295) and Singapore (201).
The average age of accepted students is 29 (with 80% between 26-32).
The average GMAT score is 703.
The average length of professional experience is 5.5 years.
Students hail from 67 countries and 30% are female.
27% of students worked in banking and 25% in consulting.

Put Me in Business (applying in less than a year)
Put Me in Business (applying in more than a year)