You asked

Historical trade data provided to the UN database Comtrade were revised by the National Statistics Office on 14 January 2014.

Which years were revised?

Which were the commodities revised and which trade flows?

We said

Thank you for your request.

Trade in goods data are supplied to UN Comtrade by Her Majesty’s Revenue and Customs (HMRC) not the Office for National Statistics. A summary of HMRC revisions to historical data can be found here:

https://www.uktradeinfo.com/Statistics/OverseasTradeStatistics/AboutOverseastradeStatistics/UnderstandingOTSData/Pages/SuppressionsandRevisions.aspx

If you have further HMRC UK trade statistics queries, you can contact their customer service team by email uktradeinfo@hmrc.gov.uk

For further queries on the UN Comtrade database, including when they incorporate revisions to data, you can contact them by email at comtrade@un.org