What was the (a) total amount and (b) a breakdown of such amounts spent (i) by each specified department, (ii) on each specified service provider and (iii) on (aa) vehicles, (bb) buses and (cc) motorcycles in respect of the transversal supply and delivery of motor vehicles, light and heavy commercial vehicles, buses and motor cycles to the Government (aaa) in the (aaaa) 2010-11, (bbbb) 2011-12, (cccc) 2012-13, (dddd) 2013-14 and (eeee) 2014-15 financial years and (bbb) since 1 April 2015?