[Note 1] The survey sample and survey population both exclude a small number of farms which have a standard output of at least €25,000 but no agricultural activity.
[Nodyn 1] Nid yw sampl yr arolwg a phoblogaeth yr arolwg yn cynnwys nifer fach o ffermydd sydd ag allbwn safonol o €25,000 o leiaf ond dim gweithgarwch amaethyddol.