Therefore to allow for trend analysis at a national level data for Cwm Taf and Cwm Taf Morgannwg are excluded for closed pathways.
Felly, er mwyn caniatáu dadansoddi tueddiadau ar lefel genedlaethol, mae data am lwybrau wedi’u cau yng Nghwm Taf a Chwm Taf Morgannwg wedi’u diystyru.