I'm not sure how detailed they get, but I'd certainly make the same observation, that because the educational levels in the aboriginal community in the north are lower than in the non-aboriginal community, most of those jobs are at the entry level, the semi-skilled, the apprenticeship and trades area, which is increasing all the time.
There is also a program that one of the mines calls the aboriginal leadership development program, to try to take those workers who have demonstrated that they want to move on but don't have the skills, and help with their training, so they can move up in the ranks into supervisory roles.