No, I think it is not turning it over once a year. The life of those assets would be, in the trucks and the shovels, in the neighbourhood of five to ten years.
What I would also point out is that tax policy and royalty policy almost always, worldwide, recognizes that the people who put up their investment first are the ones who have to get their capital first, because they have a higher cost of capital, and if you stretch out the period over which they're allowed to recover their costs, those investments may never be made.