Read this and answer the question. If the question is unanswerable, say "unanswerable".

The Paymaster General Act 1782 ended the post as a lucrative sinecure. Previously, Paymasters had been able to draw on money from HM Treasury at their discretion. Now they were required to put the money they had requested to withdraw from the Treasury into the Bank of England, from where it was to be withdrawn for specific purposes. The Treasury would receive monthly statements of the Paymaster's balance at the Bank. This act was repealed by Shelburne's administration, but the act that replaced it repeated verbatim almost the whole text of the Burke Act.

How often could paymasters make withdrawals?
unanswerable