If I could just comment, we can still see what we can follow up on there.
The tax credit issue is one that is much talked about, and not terrifically well understood, in my experience. If you go to the Department of Finance data on that, you can find information that basically defines what is a tax expenditure, as opposed to what is a legitimate write-off. The actual tax expenditures, over and above appropriate write-offs linked to the economic life of assets, are relatively small, and have been relatively small for certainly the oil and gas industry for the past ten years.
I can't comment off the top of my head as to what other subsidies there may be around. Again, there are some definitional issues around that, but we will endeavour to get some further information to you.
If I could just add to your question, I don't know what the number is, but clearly, if you look at the industry overall, the vast majority of those taxes are paid by the oil and gas industry, particularly the upstream production industry. It's far and away the largest part of the sector.