Most mothers giving birth in the year were aged between 25 and 34, while there were more mothers aged 40 or older than 19 or younger for the first time on record.
Roedd y rhan fwyaf o’r mamau a roddodd enedigaeth yn ystod y flwyddyn rhwng 25 a 45 oed, ac roedd mwy o famau 40 oed ac hŷn na mamau 19 oed ac iau am y tro cyntaf ers dechrau cofnodi.