Exact population: 106,146 (July 2011 est.) Literacy: Total population: 98.9%; male: 98.8%; female: 99% Ethnicities: Polynesian, Europeans about 300 Land boundaries: 0 km Terrain: Most islands have limestone base formed from uplifted coral formation; others have limestone overlying volcanic base Extremes: Lowest point: Pacific Ocean 0 m; highest point: unnamed location on Kao Island 1,033 m Imports: New Zealand 37.1%, Fiji 24.3%, Australia 9.1%, China 8.9%, US 6.3% (2004) Exports: Japan 37.1%, China 18.7%, US 17.7%, Taiwan 8.7%, New Zealand 7.4% (2004) Industries: Tourism, fishing
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 "Vlag van Tonga")
 "Kaart van Tonga")
 "Wereldkaart van Tonga")
 "Geld uit Tonga")