https://ecipe.org/wp-content/uploads/2023/10/PR-PB-112023.pdf
https://www.bruegel.org/sites/default/files/2024-09/PB%2019%202024.pdf
https://www.esri.ie/system/files/publications/SUSTAT117.pdf
https://ec.europa.eu/commission/sites/beta-political/files/customs_controls_0.pdf