With reference to flying squad units in each province in the (a) 2019-20, (b) 2020-21 and (c) 2021-22 financial years, what total number of vehicles (i) have been allocated to each unit, (ii) are being boarded and (lii) have been non-operational for more than 30 days in the specified financial years and as at the latest specified date for which information is available;