We've already made a couple of investments, both in CNG and propane refuelling infrastructure. We have infrastructure in Ottawa and London for one of each of those fuels, and we're currently looking at two additional sites in future for propane. The cost difference is about 47% per equivalent litre between propane and gasoline, which is why we're looking at it. It makes sense for us in our larger dispatching facilities, where we're dispatching 100, 200 or 300 vehicles, to put infrastructure on site.
As you can imagine, in rural Canada there are a number of sites that have one or two Canada Post vehicles, so putting in a $50,000 refuelling infrastructure would never pay for itself. That's where we look to the communities, for example a Canadian Tire barbecue refill centre, to maybe have auto propane as well.