Senator ABETZ (Tasmania—Leader of the Opposition in the Senate) (14:13): My question is to the Leader of the Government in the Senate, Senator Evans. I refer to the massive uncertainty being caused to Australian families and businesses by the government's inability to indicate in the budget even the most basic costs of the carbon tax it plans to impose. In order to dispel some of this uncertainty, can the minister confirm that the Labor-Greens carbon tax will increase the price of electricity by an average of $300 per household, increase the price of petrol by 6c per litre and increase the price of groceries by five per cent? If the minister cannot confirm these particular price increases, can he advise the Senate by how much the price of each of these items will increase?