/ weekly 1.0 /catalog daily 0.9 /for-business monthly 0.7 /pricing monthly 0.7 /instructor monthly 0.6 /course/surpac-fundamentals weekly 0.8 /course/surpac-pit-design weekly 0.8 /course/micromine-exploration weekly 0.8 /course/datamine-studio-rm weekly 0.8 /course/vulcan-underground weekly 0.8 /course/deswik-cad-sched weekly 0.8 /course/minesched-scheduling weekly 0.8 /course/whittle-optimisation weekly 0.8 /course/autocad-mine-survey weekly 0.8