With reference to (a) Green Point and (b) Mbombela stadiums, (i) (aa) how many and (bb) what events were held in each of the specified stadiums in each of the past three financial years, (ii) what were the total operational costs in each case, (iii) what was the total revenue generated in each case, (iv) what amount was spent on maintenance in each case and (v) what is the current operational status of each stadium?