(9)As information on cost based supervision is difficult to collect for the supervision in 2022, it is essential to provide for a transitional provision with a calculation method for a fixed fee that applies during the first year of supervision by ESMA and that is based on easily obtainable and objective data. In order to meet the proportionality principle, a distinction between DRSPs should be made by using the number of transactions as a proxy for the relevance of the individual DRSP relative to all DRSPs. The calculation to determine the supervisory fee per DRSP for 2022 should be based on the information provided by national competent authorities on transactions published or reported by APAs and ARMs during the first half of 2021 and should distinguish between larger and smaller DRSPs.