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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $40 | 50 | 50 |
| 2006 | $3,178 | 168 | 168 |
| 2007 | $7,048 | 17,877 | 17,877 |
| 2009 | $31,438,446 | 60,130,612 | 60,130,612 |
| 2010 | $13,047,443 | 21,972,122 | 21,972,122 |
| 2011 | $20,463,530 | 28,163,083 | 28,163,083 |
Note: Quantity represents Weight in kilograms
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