Normally, a major customer will have a confidential contract. There will be a commitment for a certain volume and a business discussion will take place if the volume is not met, without anything being imposed on one side or the other.
Of course, you understand that major shippers often have their own fleet of cars. So the price of the cars is not a factor. When we have to supply the cars ourselves and the traffic changes, then, overnight, we have lost volume but have bought the assets we need to serve the customer. That is an issue.
I will not say that the link is a direct one. These are long-term confidential contracts. The rate does change depending on the volume. It is explained by the simple fact that the more we ship, the more cars we put on and the lower the costs. That is only normal, since they are being shared.