What number of (a) cases of (i) murder, (ii) rape, (iii) housebreaking, (iv) carjacking, (v) theft of motor vehicles, (vi) robbery of persons in their houses or on their premises and (vii) drug-related crimes were reported at the Edenvale Police Station, (b) such cases were sent to court and (c) convictions were obtained for the specified cases in the past three financial years?