How many (a) detectives were employed at the (i) Diepsloot, (ii) Gelvandale, (iii) Bethelsdorp, (iv) Temba, (v) Manenberg, (vi) Grahamstown and (vii) Cape Town Central Police Stations in the (aa) 2011-12, (bb) 2012-13, (cc) 2013-14, (dd) 2014-15 and (ee) 2015-16 financial years and (b) vehicles were (i) allocated to each of the specified police stations and (ii) operational in each respective financial year?