Based on the suggestion of commenter Miguel Mejia in yesterday's College Basketball Attendance: Big 12 Ranked Fourth In Fans Per Game post, I calculated attendance based on percentage of capacity. I got my capacity number from Wikipedia, so while they are probably close to accurate, you can make your own assumptions based on your like or dislike of Wikipedia.
The first surprising number that popped out when we looked at total attendance was that the 16-17 Iowa St. Cyclones were fourth in the conference in attendance. Well, looking at capacity percentage, the Clones actually move up a spot to third. Maybe it was The Mayor returning, maybe it was their hot 13-2 start, but whatever the reason, Clone fans came out in droves to see their teams.
The other interesting thing that pops out is that both Kansas schools averaged over 100% attendance, with K-State selling out 100.99% of their capacity and KU coming in just behind with 100.83%.
As for the rest of the list: