当被问及“欧盟对你个人意味着什么”时，2004年5月欧盟扩张之前15个原成员国50%的公民都回答“欧元”¾这种回答的普遍性居第二位（仅次于“在欧盟各地旅游、学习和工作的能力 ” ） 。
When asked, “What does the EU mean to you personally,” 50% of citizens in the 15 countries that were EU members before enlargement in May 2004 say “the euro” – the second most common response (just behind “the ability to travel, study, and work anywhere in the EU”).