http://visual.ons.gov.uk/trading-places-uk-goods-trade-with-eu-partners/
https://www.theguardian.com/politics/2018/jul/18/dairy-products-may-become-luxuries-after-uk-leaves-eu
http://www.levyinstitute.org/pubs/wp_886.pdf
https://www.ecb.europa.eu/stats/accesstofinancesofenterprises/pdf/ecb.safe202005~c4b89a43b9.en.pdf