* 1988 Operating Revenue include airport parking revenues net of expenses. In 1989, an accounting change was made to include gross parking revenues in operating revenue and attendant parking expenses in operating expenses.
** The change in Other Income (Expense) for fiscal year 1991 compared to 1990 includes a write down of OPA's assets of $6,844, a write off of the Port's investment in the Sierra tunnels of $3,583, an expense of $1,376 related to the transfer of the interest in the Potomac yacht to the Association for the Preservation of the Presidential Yacht Potomac, and a $3,329 reduction in interest income as a result of capital disbursements from bond construction funds.
