I don't think we have a specific number, but we looked at it, and this was relevant for coming up with the estimate in the budget document as well.
Over the last 10 years the number has been quite large and it is growing. These tend to be larger dollar transactions, so the volume isn't particularly high but the dollar amounts are quite large, because the people involved, the taxpayers involved, are large foreign multinationals. They're the typical profile that's involved in this kind of planning.