Yes, we have a sense of that. I can definitely say that in course reviews we do in UM Learn, while fair dealing can be applied, it's usually for digital kinds of materials, things that you might find online to begin with, such as reports, etc. That certainly seems to be the highest percentage of fair dealing we see in the learning management system.
Quite frankly, since we have these electronic subscriptions and licences, it's just very easy for a professor to link to something that's already in the library catalogue. There's not as much, say, printing and posting of PDFs.