Senator BIRMINGHAM (South Australia—Minister for Finance, Minister for Trade, Tourism and Investment, Vice-President of the Executive Council and Leader of the Government in the Senate) (14:50): I thank the senator for the question. I have a suspicion that, without having gone and checked the Hansard, the senator probably explored these questions at some length in Senate estimates recently and that it probably was through that Senate estimates process that the senator secured those figures of the estimated number of audits. I would imagine that the ANAO addressed and answered those questions during estimates. If there is anything that was not addressed during the estimates hearings then I'll bring it back to the chamber. The PRESIDENT: Senator Gallagher, a supplementary question?