I'll just bring my comments now to her questions around the impact on households. There is quite a lot of work that's been done on this. This is one of the interesting debates about whether now is the right time to do this? And if you look at the impact the economic crisis has had on petrol prices, I think that retail prices have dropped—again, I'll need to check this—by about 48c a litre over the course of the last few months, because demand has dropped. By comparison, the additional price that would be imposed, let's say, if prices rose to $35 a tonne from the current $25 a tonne—that would impose about a 9c a litre additional cost. You know, prices have fallen 48c per litre, so you can see that, actually, households are still better off in terms of their petrol prices. 