Again, this is a really complicated issue. There are aspects of maintenance that have grown in Canada and other aspects that haven't. The sense I have overall is that we used to be number three in the world in terms of aerospace, including aircraft production. We're likely around number five at this point.
One of the complications in this is that a big aspect of aircraft maintenance is engines. Engines today are incredibly reliable, so reliable that we have almost no aircraft flying that have more than two engines. Again, if you go back 30 years, most of the intercontinental aircraft had three or four engines. Today there are 777s, 787s, A330s, and so forth, and these are all two-engine aircraft. The A340 and the 747-8 are exceptions.
As engines have become more reliable, maintenance throughout the world has been reduced, because we have fewer and much more reliable aircraft.
The overall sense I have is that we have declined somewhat, largely in aircraft production. It's starting to come back now as the C Series takes orders.