Yes, we have taken a look at that. I'm not sure if this made it into the letter to the Minister of Finance, but the simplest way of describing it is to just move everything up by 10%. Class 10, which is at 30%, would be moved up to 40%; class 12, which is at 20%, would be moved up to 30%, and so on down the line.
On February 8th, 2007. See this statement in context.