05/07/2014 08:34 am ET Updated May 07, 2014

The World's Top 10 Happiest Countries

Marco Simoni via Getty Images

Australia has been revealed as the world's happiest industrialized nation, taking the title for the fourth year running.

The so-called "lucky country" beat Norway and Sweden to take the top spot in the Organisation for Economic Cooperation and Development's (OECD) Better Life Index.

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