The fund shall reimburse the Secretary of the Department of Housing and Urban Development in an amount up to five per cent of the aggregate property insurance premiums earned in this state during the preceding calendar year on those lines of insurance reinsured by the Secretary in this state during the year with respect to which the Secretary claims reimbursement from the fund in accordance with the provisions of sections 38a-894 to 38a-898, inclusive. Any such reimbursements to the Secretary shall be upon drafts or vouchers authorized by the Treasurer with the approval of the Insurance Commissioner.