There are a number of things, I think. You eventually need to ask Pharmac that question to get a comprehensive answer, but I think—and I referred to this in my introductory comments—they deal very aggressively with the companies. They negotiate hard, one company versus another. They've been very effective in driving costs down significantly.
Now, we don't know exactly what those costs are. Only the companies and Pharmac know what they are. We also have a system here of confidential rebates, which are confidential. Nobody knows what those are. Sometimes the cost that is quoted as the list price is not the actual cost. Frequently, for example....
You do need to be a bit careful when you're talking about some of these cost containment measures, because we know that some of the pharmaceuticals appear to be cheaper than they are in Australia, but in fact that isn't the case.