Now, what we have said is that the intention is to try and manage that down in a kind of very measured way over an extended period of time. So we've estimated—and I'm saying "estimated" very consciously because it's not like a target or hard data or anything like that—but we've said about 10 years to run down that oversupply, rather than try and sort of squeeze it out of the system really early on. So that's why, when you look at the charts, which kind of show the total emissions budget, there's emissions that fall outside the emissions trading scheme, and then, of the emissions that fall inside, it's divided up into, essentially, the stockpile units that are freely allocated under the industrial allocation system, and then, essentially, the difference between those two is what we're saying we'll auction off in any given 12-month period.