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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,551 | 258 | 258 |
| 2006 | $2,521 | 152 | 152 |
| 2007 | $18,056 | 1,939 | 1,939 |
| 2008 | $23,173 | 2,361 | 2,361 |
| 2009 | $29,618 | 4,257 | 4,257 |
| 2010 | $62,064 | 16,328 | 16,328 |
| 2011 | $26,858 | 21,980 | 21,980 |
Note: Quantity represents Weight in kilograms
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