Countries in international trade in goods (GEONOM), v1:2017
Geonomenclature (GEONOM) allows for the classification of countries and territories in geographical and economic areas for statistical purposes.
https://www.dst.dk/en/Statistik/dokumentation/nomenklaturer/lande-uhv?id=8d5971f2-d270-4030-84ae-f59c26198e5f