6,000 km total in numerous segments; 4 different gauges from 0.558 m to 1.435 m gauge (1991) Highways: 360,629 km total (1990); 27,637 km paved roads on Tristan da Cunha Economic aid: US commitments, including Ex-Im (FY70-89), $294 million; Western (non-US) countries, ODA and OOF bilateral commitments (1970-89), $3,165 million; OPEC bilateral aid (1979-89), $57 million; Communist countries (1970-89), $39 million Currency: US currency
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