After a big decrease in March 2020 due to the coronavirus pandemic, the number of closed pathways has steadily risen to pre-pandemic levels.
Ar ôl gostyngiad mawr ym mis Mawrth 2020 oherwydd pandemig y coronafeirws, mae nifer y llwybrau a gaewyd wedi codi’n raddol i lefelau cyn y pandemig.