Neath Port Talbot recorded the highest in-year collection rate at 97.5% whilst Blaenau Gwent recorded the lowest at 91.0%.
Cafwyd y gyfradd gasglu uchaf y flwyddyn hon yng Nghastell-nedd Port Talbot (97.5%) a’r gyfradd gasglu isaf ym Mlaenau Gwent (91.0%).