It follows record growth in quarter 3, 2020 as the economy saw some recovery from the large falls in quarter 2 at the start of the pandemic.
Daw’n dilyn y cynnydd mwyaf ar record yn chwarter 3, 2020 wrth i’r economi weld rhywfaint o adferiad o’r gostyngiadau mawr yn chwarter 2 ar ddechrau’r pandemig.