I just want to go to Nadia Massoud. I didn't realize we'd be asking questions; otherwise, I would have been a little more prepared.
I thought you actually had a fairly interesting presentation. Basically, your argument is that the surcharge is above marginal cost. What we've been struggling with, as has Mr. Conacher, is what's the cost of the system here? Do you have any information to share with the committee on that?