Businesses in Wales were asked to select, from a list, the top 5 products they sold within the UK as a whole (including Wales) and their value. [
Gofynnwyd i fusnesau yng Nghymru ddewis, o restr, y 5 prif gynnyrch roeddent wedi’u gwerthu yn y DU gyfan (gan gynnwys Cymru) a’u gwerth. [