University of Nebraska has
about 21000 students...
22 IFC
14 NPC
6 MC
15% of the Male population is greek
16% of the Female population is greek
And yet...
69% of members of The Innocents Society are/were Greek (this is highest recognition you can get at UNL...they only take 13 juniors every year)
52% of members of Mortar Board are Greek
90% of the Student Alumni Association is Greek
84% of the Student Ambassadors are Greek
88% of the members of Student Foundations are Greek
Plus I think I've read somewhere that over 85% of the alumni donations to the University of Nebraska are by alumni of Greek houses.