https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/710147/DATA_-_FINAL.pdf
https://www.bloomberg.com/politics/articles/2017-04-26/brexit-risks-opening-pandora-s-box-of-trade-disputes-for-britain?cmpid=BBBXT042617_BIZ&utm_medium=email&utm_source=newsletter&utm_term=170426&utm_campaign=brexit
https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/9/9.pdf