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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $11,738 | 1,887 | 1,887 |
| 2006 | $10,606 | 1,705 | 1,705 |
| 2007 | $8,726 | 1,459 | 1,459 |
| 2008 | $7,681 | 1,388 | 1,388 |
| 2009 | $7,515 | 1,132 | 1,132 |
| 2010 | $27,771 | 4,406 | 4,406 |
| 2011 | $20,000 | 26,079 | 26,079 |
Note: Quantity represents Weight in kilograms
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