Senator BIRMINGHAM (South Australia—Minister for Finance, Vice-President of the Executive Council and Leader of the Government in the Senate) (15:01): I understand Senator Keneally is seeking this explanation under standing order 74(5), which clearly states that the senator may ask, if questions the senator has asked have not been responded to, for an explanation for such. I am advised that Senator Keneally does not have any questions on notice through the estimates process that have not been responded to. The DEPUTY PRESIDENT: Thank you, Minister. Senator Keneally.