I'm happy to respond.
A large part of our spend is in the area of construction—providing transportation, providing workers that do some of the construction on what we call turnaround projects or new builds. That's a big piece of it.
If I look at first nations and where we spend our money, I see that in 2017 we exceeded all our goals—Mikisew Cree, $84 million; Athabasca Chipewyan, $53 million. Fort McKay is our biggest spend at $155 million, and so on going forward. We have a very diverse number of groups involved. We spend with 197 groups, and as I mentioned, we're also seeing an expansion, from something that's based predominantly in construction and maintenance, into other areas, such as environmental services and some other areas. We are trying to grow that diversity by growing knowledge and capacity of the business opportunity in those areas. Quite frankly, when we attend CCAB and some of these other events, we speak to what we see as the biggest opportunities going forward.
You mentioned some good examples in our downstream assets owned and operated by aboriginal groups, and as we continue to grow our economic presence in Canada—construction and maintenance is big today—we're diversifying into other areas.