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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $852 | 1,019 | 1,019 |
| 2006 | $17,659 | 16,895 | 16,895 |
| 2007 | $54,487 | 56,848 | 56,848 |
| 2008 | $42,707 | 25,171 | 25,171 |
| 2009 | $197,290 | 104,473 | 104,473 |
| 2010 | $497,073 | 251,187 | 251,187 |
| 2011 | $212,936 | 103,545 | 103,545 |
Note: Quantity represents Weight in kilograms
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