On average 26% of settings were open, down from 31% in the previous week, and down from 39% in the week before the Easter school holidays.
Ar gyfartaledd roedd 26% o leoliadau ar agor, i lawr o’r 31% dros yr wythnos flaenorol ac i lawr o’r 39% yn yr wythnos cyn y gwyliau ysgol Pasg.