95%? That's a tad much. I'd put it at 50-50.
The non-conference games against cupcakes and when the students are out it doesn't help. The Houston, O'Neill and Buzz years were lean, but Pearl had the place rockin'. It rocked last year in a number of games.
Except for Cameron Indoor, all non conference cupcakes are not loud at every school. The only reason why CI is loud is because it only holds like 7k. I have been in it but not during a game. It literally has bleachers just like a gym. They could sell 18k at Duke but they choose not to.