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the amount by which the value of a country's exports exceeds the cost of its imports.
South Africa exports the most amount of diamonds per year. You can find out more information at countrystudies.us/south-africa/66.htm
No, the USA does. But Australia is the 11th country in the world with the largest amount of migrants.
india
The country with the largest population is China.
China imports the most amount of clothes to the US. (Statistic of 2003)
India
China
In general, the larger the country's domestic economy, the less dependent it tends to be on exports and imports relative to its GDP.
USA
Colombia