Recipient numbers for Nest in 2011 (‘Nest-2011’) were relatively small, so figures for Nest recipients 2011-17 (‘Nest overall’) are presented alongside.
Lle gwnaed cymariaethau gyda 2011 yn y bwletin hwn, mae ffigurau 2011 wedi’u hailgyfrif ar sail y rhai 5 oed a throsodd.