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BUENOS AIRES, Sept 22 (Reuters) - Argentina's trade surplus shrank 94.7 percent in August from the same month a year earlier to $51 million, the government said on Tuesday, undershooting even the lowest estimate in a Reuters poll of analysts.
The median forecast in a Reuters poll of analysts was for a surplus of $352 million, with estimates ranging from $200 million to $532 million.
President Cristina Fernandez's government relies on the surplus to boost dollar supplies on the tightly controlled currency market. (Reporting by Buenos Aires newsroom, writing by Sarah Marsh; Editing by Richard Lough and Meredith Mazzilli)