I would like to clarify the return on capital that you're talking about.
Under the Western Grain Transportation Act, there were cost-based maximum freight rates. One of the cost elements was a return on constant cost, not a return on capital but a return on constant cost, which was set at 20% in the act when the effective rate was probably closer to 25% or 30%, because the railways got productivity gains between costing reviews.
The cost of capital is one of the cost items in the normal formula that they look at as part of the annual inflation indexing. I believe the current rate for cost of capital is in the order of 9%; it's not 20%. There are two different concepts, cost of capital versus return on constant costs.