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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,117 | 1,269 | 1,269 |
| 2006 | $11,738 | 6,731 | 6,731 |
| 2007 | $16,512 | 9,744 | 9,744 |
| 2008 | $32,132 | 16,307 | 16,307 |
| 2009 | $28,505 | 18,829 | 18,829 |
| 2010 | $20,033 | 12,170 | 12,170 |
| 2011 | $17,628 | 13,284 | 13,284 |
Note: Quantity represents Weight in kilograms
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