What number of (a) vehicles are available for the detectives at the Elsburg Police Station, (b) these vehicles have mileage of (i) 1 — 100 000kms, (ii) 100 001 200 000kms, (iii) 200 001 — 300 000kms and (iv) more than 300 000kms and (c) days in 2017 were each of the specified vehicles out of working order?