Where this is done, the team producing the statistics should keep an accurate audit trail of the distribution, including what is sent, to whom, when and where.
Pan wneir hyn, dylai’r tîm sy’n cynhyrchu’r ystadegau gadw trywydd archwilio cywir o’r dosbarthiad, gan gynnwys beth a anfonir, i bwy, pryd a ble.