Sure. That was a budget 2007 commitment made by the federal government, so it does date back. For the provinces that were willing to eliminate taxes on capital, there was effectively money being transferred from the federal government to compensate them for eliminating those taxes.
In this case you have three provinces, Manitoba, B.C., and Ontario. The reduction here is not because they have eliminated capital tax for the first time. It's a bit like that Canada-Quebec accord I mentioned, where there are adjustments to the formula based on actual taxes. That's what you're seeing here, adjustments to the formula.