Mr BUTLER (Port Adelaide) (14:29): My question is to the Prime Minister. Government members interjecting— The SPEAKER: There will be silence on my right! Mr BUTLER: On 30 May 2011 the Prime Minister said the carbon tax would mean: 'At least a $12,000 a year increase in the price of running a farm.' Will the Prime Minister stand by his guarantee that farmers will now save $12,000 a year?