順手查了一下EU的經濟數據:
How big is the EU economy?
The European Union operates as a single market made up of 27 countries.
The total value of all goods and services produced (gross domestic product or GDP) in the EU in 2021 was € 14.5 trillion.
Trade
The EU27 accounts for around 14% of the world’s trade in goods. The EU, China and the United States are the three largest global players in international trade.
https://european-union.europa.eu/principles-countries-history/key-facts-and-figures/economy_en