With regard to the Gillooly’s interchange in Gauteng and applications for billboard structures along roads, what is the total number of applications that (a) have been received in each month, (b)(i) were approved in each month and (ii) the reasons for approval in each case (c)(i) were rejected in each month and (ii) what are the reasons for rejection in each case (aa) in the (aaa) 2014-15, (bbb) 2015-16 and (ccc) 2016-17 financial years and (bb) since 1 April 2017?