Data showing information on the number of patients treated within 26 weeks of the date a referral letter was received in the hospital for April 2017 to March 2018.
Data sy'n dangos gwybodaeth am nifer y cleifion a gafodd eu trin o fewn 26 wythnos i ddyddiad derbyn llythyr atgyfeirio yn yr ysbyty ar gyfer Ebrill 2017 i Mawrth 2018.