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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,255 | 3,510 | 3,510 |
| 2006 | $3,806 | 15,930 | 15,930 |
| 2007 | $7,033 | 25,485 | 25,485 |
| 2008 | $23,730 | 66,891 | 66,891 |
| 2009 | $19,158 | 64,008 | 64,008 |
| 2010 | $24,758 | 95,641 | 95,641 |
| 2011 | $16,207 | 60,429 | 60,429 |
Note: Quantity represents Weight in kilograms
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