University Statistical Data?

[Chrysalis]

Hey guys, I'm doing a paper on age distributions in Japanese Universities. I need to find some sort of statistical data on the ages of students that are in degree-granting institutions. I've already checked out the MEXT website (文部科学省ホームページ) but I can't seem to find any age related data (other than for graduate students and the staff of the universities ). I'm hoping theres someone here a bit more net savvy or better at navigating Japanese pages than me.

Not really sure what forum this would go into. This one seems like it would have the most chances of finding someone knowledgeable in the area.