It would depend on which fleet you're talking about. I think there's an overall challenge. I'll take aerospace as an example.
You are seeing the divestment of fleets of aircraft that were procured in the late Cold War in the United States, which would be considered the Carter-Reagan buildup aircraft, such as the F-16, the F-15 and whatnot into newer platforms like the F-22, the F-35 and the next generation. When you have older platforms, essentially, they're going to be a lot less serviceable and their availability is going to decline.
In Canada's case, with our CF-18s being procured around 1984, their serviceability is quite low. Because we are looking to transition towards the next-generation fleet, the F-35, the drawdown of that capability is predicated on having the capability to meet our NORAD commitments. Overall, our serviceability is generally low, just because we have had delayed modernization, and that goes towards—