Since that record low point, the number spending 12 hours or more has increased and in October 2021 reached almost 9,500 patients, the highest since current reporting began in April 2012.
HErs y pwynt isaf hwnnw, mae’r nifer sy’n treulio 12 awr neu fwy wedi cynyddu, ac ym mis Hydref 2021 roedd wedi cyrraedd bron i 9,500 o gleifion, y nifer mwyaf ers dechrau cofnodi ym mis Ebrill 2012.