On average 35% of settings were open, up from 29% the previous week, but down from 39% in the week before the Easter school holidays.
Ar gyfartaledd roedd 35% o leoliadau ar agor i fyny o’r 29% yr wythnos flaenorol ond i lawr o’r 39% y wythnos cyn y gwyliau ysgol Pasg.