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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,228 | 540 | 540 |
| 2006 | $12,935 | 2,649 | 2,649 |
| 2007 | $28,427 | 5,401 | 5,401 |
| 2008 | $27,334 | 3,126 | 3,126 |
| 2009 | $31,754 | 2,307 | 2,307 |
| 2010 | $21,832 | 1,144 | 1,144 |
| 2011 | $21,722 | 1,383 | 1,383 |
Note: Quantity represents Weight in kilograms
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