The full time series of data up to 17 March are available on the StatsWales website and in the contact tracing statistical report published on 24 March.
Mae’r gyfres amser o ddata llawn hyd at 17 Mawrth ar gael ar wefan StatsCymru ac yn yr adroddiad ystadegol olrhain cysylltiadau a gyhoeddwyd ar 24 Mawrth.