(a) What was the fixed establishment of employees 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, (b) what was the total number of personnel who actually worked at each of the specified stations in each specified financial year and (c) what was the total number of vacant posts in the detective services of each specified police station?