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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,920 | 449 | 449 |
| 2006 | $17,040 | 828 | 828 |
| 2007 | $28,349 | 2,255 | 2,255 |
| 2008 | $59,629 | 4,039 | 4,039 |
| 2009 | $32,207 | 2,197 | 2,197 |
| 2010 | $18,144 | 1,140 | 1,140 |
| 2011 | $19,272 | 1,619 | 1,619 |
Note: Quantity represents Weight in kilograms
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