(27)To carry out a comprehensive risk evaluation of a CSD, the competent authority will need to request statistical data on the scope of the CSD's business activities in order to evaluate the risks related to CSDs operation and to the smooth operation of securities markets. In addition, statistical data enable the competent authority to monitor the size and importance of securities transactions and settlements within the financial markets as well as to assess the ongoing and potential impact of a given CSD on the securities market as a whole.