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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $854 | 89 | 89 |
| 2006 | $12,085 | 7,739 | 7,739 |
| 2007 | $14,614 | 15,125 | 15,125 |
| 2008 | $22,862 | 15,849 | 15,849 |
| 2009 | $39,929 | 17,221 | 17,221 |
| 2010 | $5,267 | 3,141 | 3,141 |
| 2011 | $7,860 | 5,787 | 5,787 |
Note: Quantity represents Weight in kilograms
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