The Secretary of the Treasury shall deduct from any amounts covered, subsequent to 
July 24, 1968, into any special fund, created pursuant to 
section 1627 of this title, 5 per centum thereof as reimbursement to the Government of the United States for expenses incurred by the Commission and by the Treasury Department in the administration of this subchapter. The amounts so deducted shall be covered into the Treasury to the credit of miscellaneous receipts.