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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $56,750 | 32,517 | 32,517 |
| 2006 | $53,457 | 39,275 | 39,275 |
| 2007 | $17,218 | 20,000 | 20,000 |
| 2008 | $103,995 | 99,220 | 99,220 |
| 2009 | $18,160 | 22,049 | 22,049 |
| 2010 | $60,770 | 73,480 | 73,480 |
| 2011 | $33,554 | 17,497 | 17,497 |
Note: Quantity represents Weight in kilograms
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