The data supplied to the Welsh Government for this analysis were disclosure controlled by removing all counts less than 10 and rounding all remaining figures to the nearest five.
Roedd y data a ddarparwyd i Lywodraeth Cymru ar gyfer y dadansoddiad hwn yn cael ei reoli gan ddatgeliad drwy ddileu pob cyfrif llai na 10 a thalgrynnu’r holl ffigurau sy’n weddill i’r pump agosaf.