This was 0.7 percentage points higher than the previous month, 2.9 percentage points higher than August 2022 and the highest since March 2023.
Roedd hyn 0.7 pwynt canran yn uwch na’r mis blaenorol, 2.9 pwynt canran yn uwch nag ym mis Awst 2022, a’r uchaf ers mis Mawrth 2023.