Given the lack of data on intra-UK trade, domestic traders were asked to provide their top 5-products sold and the value for each of the top 5 products sold in 2019. (
O ystyried y diffyg data am fasnach o fewn y DU, gofynnwyd i fasnachwyr domestig ddarparu eu 5 cynnyrch a werthodd fwyaf a gwerth pob un o’r 5 cynnyrch yna a werthodd fwyaf yn 2019. (