Size is relative, but I don't consider 13,000 students as "pretty small"...unless 3/4 of that number are graduate students.
Those numbers make me go
...it feels weird to have that many groups at 12-25 members only. There's nothing wrong with those smaller chapters (I come from one!), but honestly, if a majority of those chapters are NPC's I'd expect them to be a lot larger at a campus with 13,000 students. (just by looking at numbers from other similar sized campuses). They could be a majority of locals though...
What is the number of students that are eligible to join the greek system there (i.e. full time, undergraduate, etc.)? How many of those groups are NPC and not NPC? Deferred recruitment or not? What is the number of PNMs going through recruitment each time? If you have an organized informal recruitment (or a recruitment "opposite" the recruitment where freshmen are eligible (a fall recruitment and a spring recruitment), how many go through each recruitment? Any idea on how many women accept COB bids?
(sorry...I went into diagnostic mode there!)
PsychTau