I'll turn to one of my colleagues to see if he has a number offhand, but I would say that our procurement system is quite different from that of the U.S. We have an open procurement system. We don't have a lot of restrictions because we've been looking more for value for money. We have provided, in particular, clear procurement opportunities to the European Union under CETA, for example, and that is at a greater level than what the U.S. has in our market.
We do have different treatments, but by and large our procurement market is open. The U.S., as our closest neighbour and market, does participate in those markets on an ongoing basis.
I don't know, Doug, whether you have anything you want to add to that.