https://publications.parliament.uk/pa/cm201719/cmselect/cmcumeds/365/365.pdf
http://visual.ons.gov.uk/trading-places-uk-goods-trade-with-eu-partners/
https://fta.co.uk/media/press-releases/2018/july/positive-reception-for-brexit-white-paper-from-log
http://fedtrust.co.uk/the-2017-general-election-a-mandate-for-brexit/