Mr SHORTEN (Maribyrnong—Leader of the Opposition) (14:03): My question is to the Prime Minister. Prime Minister, it has happened again. Last week in the Prime Minister's courtyard, somebody said: A ratio of debt to GDP at about 50 or 60 per cent is a pretty good result. Given that this happened in the Prime Minister's very own courtyard, does the Prime Minister have any idea who said this? Opposition members interjecting— The SPEAKER: There will be silence on my left. The Prime Minister has the call.