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| Year | Trade Value | Weight (kg) | Quantity |
| 2007 | $30,313 | 9,994 | 9,994 |
| 2008 | $673,611,331 | 850,452,559 | 850,452,559 |
| 2009 | $163,576,159 | 239,403,916 | 239,403,916 |
| 2010 | $173,933,978 | 274,557,930 | 274,557,930 |
| 2011 | $68,713,359 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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