Yes, certainly. We can provide you with more detail on that, I think, and Randy can speak to it.
Generally, our experience has been that the use of the extended interswitching has definitely been greater at the shorter distances, and certainly as we got closer to 160, or one year of data—and the caution is one year of data only so far—which demonstrates that there hasn't been a massive use of interswitching provisions as you get closer, between 100 and 160, I think, it's increased by 1%, Randy, if I'm not mistaken?
Again, we shouldn't just rely on what the number shows, because there's also the factor of what its existence does to change the negotiating climate between the shipper and the railway. The fact that they're not necessarily using interswitching doesn't mean that it's not a useful element in the marketplace.