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BUENOS AIRES, July 22 (Reuters) - Argentina's trade surplus narrowed a more-than-expected 57.1 percent in June from the same month a year earlier to $456 million, the government said on Wednesday.
The median forecast in a Reuters poll of analysts was for a surplus of $565 million.
President Cristina Fernandez's government relies on the surplus, which is supported by import restrictions, to boost dollar supplies on the tightly controlled currency market. (Reporting by Buenos Aires newsroom; Editing by Steve Orlofsky)