The report of each such independent audit shall be included in the annual report required in
section 11335 of this title. Such report shall set forth the scope of the audit and include such statements as are necessary to present fairly the assets and liabilities of the National Board, surplus or deficit, with an analysis of the changes during the year, supplemented in reasonable detail by a statement of the income and expenses of the National Board during the year, and a statement of the application of funds, together with the opinion of the independent auditor of such statements.