There is a pattern in lapses. If one goes back, say, to the late 1990s, there is a pattern of increasing lapses from about 1999-2000 until 2007-08, and I would say that's largely a function of an expansion in spending over that period of time and of spending that takes some time to implement, either in an absolute sense, because they're federal programs that are being designed, or because they involve some partnership or negotiation with a third party—in particular, provinces and municipalities.
The lapse this year is down by somewhat over a billion dollars in aggregate compared with last year, and it is something that the Treasury Board Secretariat—not the Comptroller General, but the secretariat—is looking at when they prepare the estimates.