Just under 55,000 pathways were waiting more than two years, a seventh consecutive monthly fall following a consistent increase over the previous year.
Roedd bron i 55,000 o lwybrau’n aros mwy na dwy flynedd, yn dilyn gostyngiad am y seithfed mis yn olynol, ar ôl cynnydd cyson dros y flwyddyn flaenorol.