[ 5 ] It is assumed that a large proportion of unsuccessful applicants may have just missed out on income threshold for eligibility but are assumed to be predominantly from low-income families.
[ 5 ] Rhagdybir y gallai cyfran fawr o ymgeiswyr aflwyddiannus fod wedi methu'r trothwy incwm ar gyfer cymhwystra o drwch blewyn, ond tybir eu bod yn dod o deuluoedd incwm isel yn bennaf.