It can often make sense to look at share of production or output, rather than share of farms, which can provide an extra complication when analysing results.
Yn aml, gall wneud synnwyr edrych ar gyfran o gynnyrch neu allbwn, yn hytrach na chyfran ffermydd, a all ddarparu cymhlethdod ychwanegol wrth ddadansoddi canlyniadau.