Since that record low point, the number spending 123 hours or more has increased and in July 2021, reached 7,084 patients, the highest since the highest since current reporting began in April 2012.
Yn y cyfnod cyn y pandemig ym mis Ionawr 2020, roedd ychydig o dan 7,000 o gleifion wedi aros am fwy na 12 awr, y nifer uchaf ers dechrau cofnodi hyn yn 2012.