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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,563,735 | 103,958 | 29,752 |
| 2006 | $1,813,658 | 71,751 | 14,999 |
| 2007 | $2,450,639 | 95,281 | 16,647 |
| 2008 | $2,225,409 | 76,437 | 15,439 |
| 2009 | $2,238,880 | 68,887 | 13,135 |
| 2010 | $2,346,807 | 62,486 | 16,366 |
| 2011 | $2,272,853 | 81,655 | 18,255 |
Note: Quantity represents Number of pairs
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