David, you touched a little on the fact that these sidings can be used for other things besides railcars. For example, in Tisdale, Northern Steel also uses that site for bringing steel in and out. So I'd like to inform committee members that what you're seeing here is not the full use of that site; it's just the grain side of the business.
One of the things I've often wondered about is that you'll see producer cars kind of go in waves. All of a sudden guys will be happy and do it for two or three years, then they'll back off. Is there anything you can relate on why that is? If we look at this list, some sites are very active and some sites just aren't active at all. Are there any similar characteristics? Are there barriers in place right now that we should be looking at as a committee that are preventing farmers from using these producer sites?
Jim, I'll start with you.