Individuals are counted once for each pay range they are paid on (this differs to the headcount for SWAC School data where individuals are counted in their most senior role only).
y rhai sy'n gweithio'n rhan-amser mewn dwy ysgol) ei chyfuno'n un cofnod a'i chofnodi yn erbyn y raddfa uchaf ar gyfer yr athro unigol hwnnw.