Thank you.
On the subject of costing, there are a couple of different ways to tackle it, depending on the circumstances.
On an ongoing basis, we try to track the cost, on a unit basis, of servicing the accounts: the T1 accounts, or the individual accounts; the T2, or corporation accounts; things like the GST accounts. So we don't do it on the basis of individual measures, but we can give some sense of what the aggregate cost of a revenue stream is.
The other thing, though, that I think is maybe more pertinent to your question is when there is a new measure that comes in, we will go through an exercise of trying to determine what would be the incremental cost of that measure. We do that largely for budgeting purposes so that we can advise the Department of Finance on how we might need to have our budget adjusted. Those would then appear in Treasury Board submissions, and ultimately in supplementary estimates.