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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,451 | 2,200 | 2,200 |
| 2006 | $936 | 850 | 850 |
| 2007 | $2,618 | 3,600 | 3,600 |
| 2008 | $5,633 | 3,602 | 3,602 |
| 2009 | $16,343 | 11,231 | 11,231 |
| 2010 | $50,380 | 50,500 | 50,500 |
| 2011 | $32,133 | 33,180 | 33,180 |
Note: Quantity represents Weight in kilograms
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