在全球财富和康乐评级列格坦繁荣指数最近的调查中，这四个国家和瑞士一起占据了前5位。
Legatum Prosperity Index, a global ranking of wealth and wellbeing, placed all four countries, along with Switzerland, in the top five spots of its recent survey.
2009年，列格坦研究所公布的“繁荣指数”，世界上最繁荣的国家排名，美国排第9名。
In the 2009 "prosperity index" published by the Legatum Institute, the United States was ranked as just the ninth most prosperous country in the world.
2009年，列格坦研究所公布的“繁荣指数”，世界上最繁荣的国家排名，美国排第9名。
In the 2009 "prosperity index" published by the Legatum Institute, the United States was ranked as just the ninth most prosperous country in the world.
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