Some 52% of employee jobs were covered by collective bargaining arrangements in 2023, where pay and conditions are negotiated between an employer and a trade union.
Roedd tua 52% o swyddi gweithwyr yn dod o dan drefniadau cydfargeinio yn 2023, lle mae cyflog ac amodau’n cael eu negodi rhwng cyflogwr ac undeb llafur.