
https://www.eia.gov/energyexplained/us-energy-facts/imports-and-exports.php

http://www.esf.be/new/wp-content/uploads/2018/07/ESF-Press-Release-on-Importance-of-Services-Trade-in-EU-UK-Future-Relastionship.pdf

https://ecipe.org/wp-content/uploads/2022/10/ECI_22_PolicyBrief_Globalisation_08_2022_LY04.pdf