To add to Clyde's comments, one of the things you have to remember when you're looking at U.S. prices is that they're in U.S. dollars and in short tons. That would account for about a 35% difference in the number you're looking at. We have not seen the study, and we'd certainly refer it to the co-op federation for their comments.
We have seen tremendous, probably the most dramatic changes in market conditions in the last 12 months that we have seen in living memory, not just in fertilizer markets but in the energy markets, in the grain markets. A lot of it, I would say, would depend on the timing of when that product was purchased and put into inventory and the cost it came in at.