In this case the release of one set of statistics may be delayed to coincide with publication of the other, provided users' wishes are taken into account.
Yn yr achos hwn, gellir oedi cyn rhyddhau un set o ystadegau er mwyn cyd-fynd â chyhoeddi’r llall, ar yr amod y rhoddir ystyriaeth i ddymuniadau defnyddwyr.