(6)The annual supervisory fees charged to each securitisation repository should be proportionate to the turnover accrued by that repository within a given financial year in comparison with the total turnover accrued by all registered and supervised securitisation repositories within the same financial year. A minimum annual supervisory fee should also be imposed on each securitisation repository, given that certain fixed administrative costs apply for the supervision of all securitisation repositories, irrespective of the amount of turnover accrued.