(a) What is the (i) total cost and (ii) breakdown of such costs of the public sector wage agreement in the (aa) 2015-16, (bb) 2016-17 and (cc) 2017-18 financial years, (b) what is the sum total cost of the specified financial years combined for each specified provincial department in respect of each province and (c) how will the public sector wage agreement be financed in each specified case?