These are official statistics which are published in order to involve users and stakeholders in their development and as a means to build in quality at an early stage.
Cyhoeddir fel ystadegau swyddogol o dan ddatblygiad gyda'r bwriad o wella eu hansawdd dros amser trwy adborth gan ddefnyddwyr a rhanddeiliaid a datblygu'r fethodoleg.