Statistics_Interval=integer

    Specifies that statistics are to be displayed at regular
    intervals so that you can evaluate the progress of the unload
    operation.

    The displayed statistics include:

    o  Elapsed time

    o  CPU time

    o  Buffered I/O

    o  Direct I/O

    o  Page faults

    o  Number of records unloaded for a table

    o  Total number of records extracted for all tables

    If the Statistics_Interval qualifier is specified, the default
    interval is 60 seconds. The minimum value is one second. If the
    unload operation completes successfully before the first time
    interval has passed, you will receive an informational message
    on the number of files unloaded. If the unload operation is
    unsuccessful before the first time interval has passed, you will
    receive error messages and statistics on the number of records
    unloaded.

    At any time during the unload operation, you can press Ctrl/T to
    display the current statistics.