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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $3,118,511 | 113,109 | 148,391 |
| 2007 | $4,005,080 | 91,406 | 115,249 |
| 2008 | $6,982,744 | 127,322 | 180,618 |
| 2009 | $4,425,342 | 78,914 | 127,571 |
| 2010 | $2,707,280 | 53,829 | 90,186 |
| 2011 | $3,008,606 | 56,636 | 89,522 |
Note: Quantity represents Number of pairs
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