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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $798 | 450 | 450 |
| 2006 | $1,933 | 1,500 | 1,500 |
| 2007 | $279 | 1,150 | 1,150 |
| 2008 | $13,994 | 12,020 | 12,020 |
| 2009 | $12,078 | 17,601 | 17,601 |
| 2010 | $3,997 | 4,306 | 4,306 |
| 2011 | $69,813 | 47,419 | 47,419 |
Note: Quantity represents Weight in kilograms
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