With reference to each metropolitan municipality and based on the 2014-15 audited annual financial statements, what amount of (a) irregular expenditure, (b) unauthorised expenditure and (c) fruitless and wasteful expenditure was (i) reported, (ii) condoned, (iii) written off in an adjustment budget and (iv) recovered in terms of section 32 of the Municipal Finance Management Act 56 of 2003?