Specifies that a report is to be produced containing statistics
    about the file. The /STATISTICS qualifier is used mainly on
    indexed files.

    By default, if you do not specify an output file with the /OUTPUT
    qualifier, the statistics report is written to the current
    SYS$OUTPUT device, which is generally your terminal.

    The /STATISTICS qualifier is not compatible with the /CHECK
    qualifier, the /FDL qualifier, the /INTERACTIVE qualifier, or
    the /SUMMARY qualifier.  If /STATISTICS is used with any other
    qualifiers, /FDL takes precedence, and then /INTERACTIVE.  All
    other qualifiers are ignored.  The /STATISTICS qualifier does an
    implicit check.