A national indicator on the proportion of employees whose pay is set by collective bargaining was introduced in December 2021, based on data from the Annual Survey of Hours and Earnings (ASHE).
Cyflwynwyd dangosydd cenedlaethol ar gyfran y gweithwyr y pennir eu cyflog drwy gydfargeinio ym mis Rhagfyr 2021, ar sail data o’r Arolwg Blynyddol o Oriau ac Enillion (ASHE).