This screen displays the statistics for the TSNBLK object. The
    TSNBLK object contains the information on the last committed
    transaction.

    The number of TSNBLK objects is a function of the maximum number
    of users in the database; there is one TSNBLK object for every 28
    database users (rounded up). For example, a database containing a
    maximum of 512 users would contain 19 TSNBLK objects.