However, a substantial increase was seen in the export values of Mineral Fuels, up £2.5 billion (116.5%) to £4.6 billion compared with the previous year.
Fodd bynnag, o'i gymharu â'r flwyddyn flaenorol gwelwyd cynnydd sylweddol o £2.5 biliwn (116.5%) i £4.6 biliwn yng ngwerthoedd allforion Tanwydd Mwynol, yn cyfateb i 22.6% o holl allforion o Gymru.