It's a minor amount in terms of the overall operation.
The big disadvantage for nuclear is that the cost associated with constructing the facility is big compared to a lot of other generating types. Our operation costs are really quite small. In most cases we would see the uranium fuel cost as being under 5% of the cost of operating. Hence, while we've seen an increase in the price of uranium--for instance, when I came here in 2004, it was $7 a pound, and it is now up over $100 a pound on the spot market--still, because it's such a small part of the overall operating component, it leaves us a very competitive production facility.