Tests processed through NHS Wales laboratories and non-NHS Wales laboratories (Lighthouse Labs) have been identified separately and included in different tables.
Mae profion a brosesir drwy labordai GIG Cymru a labordai heblaw am rai GIG Cymu (Labordai Goleudy) wedi’u nodi ar wah â n, ac wedi’u cynnwys mewn tablau gwahanol.