Photographs: Charles Platiau/Reuters.
The International Monetary Fund (IMF) has cut down its 2013 forecast for global economic growth to 3.9 per cent from the 4.1 per cent, trimming projections for most advanced and emerging economies.
It pegs the GDP growth in the United States to be 2.3 per cent, down from 2.4 per cent.
Take a look at the world's top 30 economic giants in terms of nominal GDP, according to the IMF.
United States (Rank 1)
GDP: $15.65 trillion
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World's 30 economic superpowers
Image: A customer chooses peanuts at a supermarket in Huaibei, Anhui province.Photographs: Lucy Nicholson/Reuters.
China (Rank 2)
GDP: $8.25 trillion
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World's 30 economic superpowers
Image: A woman looks through products at a drug store in Tokyo.Photographs: Reuters.
Japan (Rank 3)
GDP: $5.98 trillion
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World's 30 economic superpowers
Image: Boats are sen floating above the piers on a flooded street in front of the historic skyline of Dresden, along the banks of the river Elbe.Photographs: Fabrizio Bensch/Reuters.
Germany
GDP: $3.36 trillion
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World's 30 economic superpowers
Image: A worker puts the final touch at a sculpture featuring the Eiffel tower made from lemons and oranges during the lemon festival in Menton, southern France.Photographs: Reuters.
France (Rank 5)
GDP: $2.58 trillion
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World's 30 economic superpowers
Image: A busker plays bagpipes for tourists near the Houses of Parliament in London.Photographs: Reuters.
United Kingdom (Rank 6)
GDP: $2.43 trillion
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World's 30 economic superpowers
Image: Brazilians use surfboards in the pond next to National Congress during a protest against the new Forestry Law being debated by the legislature in Brasilia.Photographs: Ueslei Marcelino/Reuters.
Brazil (Rank 7)
GDP: $2.42 trillion
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World's 30 economic superpowers
Image: Members of environmental activist group Greenpeace unfurl a banner from Rome's ancient Colosseum.Photographs: Stefano Rellandini/Reuters.
Italy (Rank 8)
GDP: $1.98 trillion
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World's 30 economic superpowers
Image: A migrant worker wearing a Russian cartoon hero 'Luntik' costume takes a break from his work of distributing advertising leaflets at metro station in Moscow.Photographs: Denis Sinyakov/Reuters.
Russia (Rank 9)
GDP: $1.95 trillion
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World's 30 economic superpowers
Image: A boy plays on a swing suspended from a tree in front of a residential estate under construction in Kolkata.Photographs: Rupak De Chowdhuri/Reuters.
India (Rank 10)
GDP: $1.94 trillion
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World's 30 economic superpowers
Image: A cyclist passes the Bank of Canada building through a snow covered sidewalk in Ottawa.Photographs: Chris Wattie/Reuters.
Canada (Rank 11)
GDP: $1.77 trillion
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World's 30 economic superpowers
Image: Tourists visit the ANZAC memorial building at Hyde park in central Sydney.Photographs: Daniel Munoz/Reuters.
Australia
GDP: $1.54 trillion
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World's 30 economic superpowers
Image: General view of Antoni Tapies Foundation building in central Barcelona.Photographs: Albert Gea/Reuters.
Spain (Rank 13)
GDP: $1.34 trillion
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World's 30 economic superpowers
Image: Ice skaters are seen on a skating rink in Mexico City's historic Zocalo square.Photographs: Edgard Garrido/Reuters.
Mexico (Rank 14)
GDP: $1.16 trillion
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World's 30 economic superpowers
Image: Part of Gangnam area is seen down the Han River in Seoul.Photographs: Lee Jae Won/Reuters.
South Korea
GDP: $1.15 trillion
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World's 30 economic superpowers
Image: French climber Alain Robert, a rock climber who has become famous for climbing known buildings worldwide, climbs the 215m (705 feet) high, 50 floors Bakrie Tower building in Jakarta.Photographs: Supri/Reuters.
Indonesia (Rank 16)
GDP: $894.85 billion
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World's 30 economic superpowers
Photographs: Danbury/Wikimedia Commons.
Turkey (Rank 17)
GDP: $783.06 billion
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World's 30 economic superpowers
Image: A lone skater skates past three windmills as he enjoys the first time he can skate on natural ice in Kinderdijk, near Rotterdam.Photographs: Michael Kooren/Reuters.
The Netherlands (Rank 18)
GDP: $770.22 billion
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World's 30 economic superpowers
Image: Saudi Arabian Airlines.Photographs: Terence Ong/Wikimedia Commons.
Saudi Arabia
GDP: $657.04 billion
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World's 30 economic superpowers
Image: Chalets are pictured after a snow fall on a winter day at the Vallee de la Sionne in Anzere near Sion.Photographs: Denis Balibouse/Reuters.
Switzerland
GDP: $622.85 billion
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World's 30 economic superpowers
Image: A general view of Spyker Cars Saab factory in Trollhattan.Photographs: Bjorn Larsson Rosvall/Reuters.
Sweden (Rank 21)
GDP: $520.25 billion
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World's 30 economic superpowers
Image: The sunset is reflected off the buildings of The Barcode Project in Oslo.Photographs: Cornelius Poppe/Reuters.
Norway (Rank 22)
GDP: $499.82 billion
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World's 30 economic superpowers
Image: Tourists walk in Brussels' Royal Galleries of Saint Hubert.Photographs: Sebastien Pirlet/Reuters.
Belgium (Rank 24)
GDP: $476.79 billion
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World's 30 economic superpowers
Image: Buenos Aires.Photographs: Reuters.
Argentina (Rank 25)
GDP: $474.81 billion
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World's 30 economic superpowers
Image: Warsaw.Photographs: Peter Andrews/Reuters.
Poland (Rank 26)
GDP: $470.35 billion
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World's 30 economic superpowers
Image: People visit a giant replica of Lemuel Gulliver built in a park in central Taiwan's city of Taichung.Photographs: Ralph Jennings/Reuters.
Taiwan (Rank 27)
GDP: $466.05 billion
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World's 30 economic superpowers
Image: A view of Vienna International Center and UN headquarters in Vienna.Photographs: Herwig Prammer/Reuters.
Austria (Rank 28)
GDP: $391.46 billion
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World's 30 economic superpowers
Image: Farm workers on a farm in South Africa.Photographs: Siphiwe Sibeko/Reuters.
South Africa (Rank 29)
GDP: $390.91 billion
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World's 30 economic superpowers
Image: A farmer works near a flock of birds at his rice field in Ayutthaya province, Thailand.Photographs: Sukree Sukplang/Reuters.
Thailand (Rank 30)
GDP: $376.98
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