There are a couple of things. To be fair, I'm not looking at the numbers, so I apologize for that. The changes in the numbers could have come about for a couple of reasons. One could be historical revisions to data, like new date that becomes available. Sometimes Statistics Canada will revise back a couple of years.
To be quite honest with you, I'm not sure I can answer the question around the start date, but that may have been about better availability of data. I'm happy to come back if there's more information you'd like on the specifics of the calculation.
I'll just say that overall the average that we were calculating before should have been a compound annual growth rate as well, because that's sort of the way we would try to calculate. There must be, I would think, some data change in there, some historical revisions, that might have driven some of that.